What variable is represented with the letter V?
a. Velocity
b. Vector
c. Acceleration
d. Displacement

Answers

Answer 1

Answer:

a.Velocity

Explanation:

#Hope it helps
Answer 2

Answer:

A

Explanation:


Related Questions

Which type of reaction is modeled by this chemical equation?
2Li + CaCl2 → 2LiCl + Ca
O A. Single-replacement
O B. Combustion
O C. Synthesis
O D. Double-replacement

Answers

The correct answer is Option (A) Single replacement.

What is Single replacement Reaction?

The reaction substituted to the other element is called single replacement reaction.The general equation is A+BX-----> AX+B.Why other options are incorrect?

(B) Combustion is a type of chemical reaction in which a compound and an oxidant is reacted to produce heat and a new product.

(C) Synthesis is the production of chemical compounds by reaction from simpler materials.

(D)A double replacement reaction is a type of chemical reaction where two reactants exchange ions to form two new products with the same type of chemical bonds.

Hence Other options are incorrect and (A) is the correct one

Learn more about single replacement reaction here

https://brainly.com/question/20216315

#SPJ2

Answer: single replacement

Explanation:

The distance between an object and a reference point is the object's what?

Answers

Answer:

Displacement

Explanation:

The distance between an object and a certain reference point is called displacement. This is not to be confused with distance, which represents the total distance the object has travelled to get a certain point, regardless of how long it is. Displacement always represents the shortest distance (a straight line) between the initial and final points.

Answer:

Displacement is the distance and direction of an object's change in position from a reference point. Suppose a runner jogs to the 50-m mark and then turns around and runs back to the 20-m mark.

I pull a wagon with a 30 kg child in it with a FORCE of 2000 N. The handle makes a 60 degree angle with the horizon. If I pull the child for a distance of 0.75 miles (1 mile = 1600 m), how much work did I do?

Answers

Answer:

1200000 J

Explanation:

Applying,

W = Fdcos∅....................... Equation 1

Where W = Workdone, F = Force applied to pull the wagon, d = distance, ∅ = angle with the horizontal.

From the question,

Given: F = 2000 N, d = 0.75 miles = (0.75×1600) = 1200 m, ∅ = 60°

Substitute these values into equation 1

W = 2000×1200×cos60°

W = 2000×1200×0.5

W = 1200000 J

Hence the work done in pulling the wagon is 1200000 J

HELP ME PLEASE I NEED IT NOW
a) What is the value of the angle of incidence of Ray PQ on the mirror AB?

Answers

Answer:

the angle of incident is 40°

Explanation:

NQ is the normal to the mirror, therefore

angle NQA =90°

PQA = 50°

incident angle = NQA - PQA

90°- 50° = 40°

note that the angle of reflection is equal to the angle of incident

what can make an inclined plane more efficient?

Answers

Answer:

Efficiency can be increase by using rollers in conjunction with the inclined plane. Wedge. The wedge is an adaptation of the inclined plane. It can be used to raise a heavy load over a short distance or to split a log

A 2kg mass and a 4kg mass on a horizontal frictionless surface are connected by a massless string A. They are pulled horizontally across the surface by a second string B with a constant acceleration of 12 m/s^2. What is the magnitude of the force of string B on the 2kg mass?

Answers

Answer:

72 N

Explanation:

Applying,

F = (m'+m)a..................... Equation 1

Where F = Force, m' = First mass, m = second mass, a = acceleration.

From the question,

m' = 2 kg, m = 4 kg, a = 12 m/s²

Substitute these values into equation 1

F = 12(2+4)

F = 12×6

F = 72 N

Which sex is born with half-formed versions of
their gametes that will mature at puberty

Answers

I’m pretty sure it’s females

Answer:

females

Explanation:

The ova(egg) starts meiosis as a foetus but doesn't complete it until puberty. This is when the menstrual cycle will start to occur indicating the gametes( egg) is maturing and if not fertilized will be removed.

A student fully stretches a spring. Which of these energy pie charts represents the energy in the spring? ​

Answers

Answer:

[tex]U_x = \frac{1}{2} kx^2[/tex]

Explanation:

Find the image uploaded for the chart.

The energy stored in a stretched elastic material is known as elastic potential energy. Mathematically this energy is expressed as follows;

[tex]U_x = \frac{1}{2} fx\\\\where ;\\\\f = kx\\\\U_x = \frac{1}{2}kx^2[/tex]

The terms are defined as follows;

f is the load applied to the elastic material (N)

k is the spring constant (N/m)

x is the extension of the material (m)

Ux is the elastic potential energy (J)

define the term capacitance and its SI unit​

Answers

Answer:

See explanation below

Explanation:

Capacitance is the amount of electric charge stored on a conductor and its SI unit is Farads (F).

Answer:

capacitance is the amount electric charges of a conductor, its si is farads

Bye , :-)

Which of the following careers would physicists be least qualified to perform,
based on their training?
A. Nuclear engineer
B. Research lab manager
C. Solar panel designer
D. Gardener
SUBMIT

Answers

THE QUESTION ANSWER IS D

Question 3
When a police officer is trying to decide if a driver is speeding, what is his point of reference?
The ground
His car
The speed limit
All of these

Answers

When a police officer is trying to decide if a driver is speeding, what is his point of reference. The speed limit

The metal wire in an incandescent lightbulb glows when the lights is switch on and stops glowing when switched off. This simple process is which kind of a change?

Answers

Answer:

When the metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off, this is an example of resistance, which provides light and heat.  

Explanation:

Opening or closing a circuit.

which material has more specific heat?

Answers

Answer:

SO

Explanation:

SI

Answer:

Explanation:

dynamic equilibrium

how can professional education improve life of people?

Answers

Answer:

Professional education as a science has been defined as a field of educational science that studies the growth of a person into a profession and the related problems. It refers to organized education aimed at the knowledge and skills needed in the profession and working life, as well as growing into active citizenship and membership of society. Professional education as a discipline studies vocational training, skills and learning related to the profession and working life.  

It enables young people and adults to pursue goal-oriented learning with the aim of acquiring and developing the necessary skills in the profession and creating the conditions for independent professional activity and continuous development in the profession.

find the magnitude and angle of a vector given the components: Bx=7, By=-5​

Answers

Answer:

Magnitude = 8.6

Angle = 324.5 degree from + X axis in counter clock  wise direction.

Explanation:

X component of B, Bx = 7

Y component of B, By = - 5

The magnitude of the resultant is  

[tex]B =\sqrt{7^{2}+(-5)^2}\\\\B =\sqrt{49+ 25}\\\\B = 8.6[/tex]

The angle is given by

[tex]tan\theta=\frac{By}{Bx}\\\\tan\theta = \frac {-5}{7}\\\\\theta = 324.5^{o}[/tex]

The drop in potential across a resistor in a circuit is 40 V. What is the current
flowing through the resistor if the resistance is 2.0 0? (use Ohmis law. V = IR

Answers

Answer:

Current, I = 20 Amperes.

Explanation:

Given the following data;

Voltage = 40 V

Resistance = 2 Ohms

To find current flowing through the resistor;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Making current (I) the subject of formula, we have;

[tex] I = \frac {V}{R} [/tex]

Substituting into the formula, we have;

[tex] I = \frac {40}{2} [/tex]

Current, I = 20 Amperes.

Si se aplic una fuerza de 150N en un área de de 0.4m2¿cual será la preciosa ejercida?

Answers

Answer:

P = 375 Pa

Explanation:

The question says that,"If a force of 150N was applied in an area of ​​0.4m², what will be the precious exerted?"

We have,

Force, F = 150 N

Area, A = ​​0.4m²

We need to find the pressure exerted. We know that,

Pressure = forece/area

So,

[tex]P=\dfrac{150\ N}{0.4\ m^2}\\\\P=375\ Pa[/tex]

So, the required pressure is equal to 375 pa.

Please help me do this problem

Answers

Answer:

i) acceleration from B to D is 0, because the velocity is constant (stays the same)

ii) whatever units of distathat might be, we can calculate the number:

for 4 time-steps (2 to 6) the velocity is 6 per time step, that makes 24 distance units in these 4 time steps. it's the same the area underneath the graph.

there is also the vertical line from 0 to 2. we can calculate that distance like the area of a triangle with 2*6 / 2 = 6

the total distance from 0 to D is therefore 30

An average 1.50 V Alkaline AA battery has 9,360 J of stored energy. If the battery is placed in a toy that requires 2.00 amperes of current to operate, how many minutes will the battery last before it runs out of energy?​

Answers

Answer:

52 minutes

Explanation:

Given the following data;

Voltage = 1.5 V

Current = 2 Amperes

Energy = 9360 J

To find how many minutes will the battery last before it runs out of energy;

First of all, we would determine the power rating of the toy

Power = current * time

Power = 2 * 1.5

Power = 3 Watts

Next, we find the time;

Energy = power * time

9360 = 3 * time

Time = 9360/3

Time = 3120 seconds

To convert to minutes;

60 seconds = 1 minute

3120 seconds = 3120/60 = 52 minutes

a man runs 1200m on a straight line in 4 min . find his velocity.

Answers

Answer:

5m/sec^2

Explanation:

Distance=1200m

Time=4 min

1=60sec

4=4 x 60

=240sec

Velocity=Distance/Time

Velocity=1200/240

Velocity=5m/sec^2

Mark me as brainliest

state the mode by which heat travels from the cube to the balloons​

Answers

Answer:

The face of the cube towards A. is bright and shiny and the face towards B is dull black. State with reason the adjustments that should be made on the distances X1 and X2 so that the rate of change of temperature in both balloons is the same.

Explanation:

Convection is the mechanism by which heat is transferred from the cube to the balloon. Convection is the movement of currents inside a liquid or gas that transfers heat energy.

What is Convection?

Convection is a method of heat transfer in which a fluid or gas, such as air or water, is moved. A hotter liquid or gas loses density and rises, while a colder, denser liquid or gas replaces it by sinking. Convection is the term used to describe the movement of gases or liquids due to temperature differences.

When the cube is heated, the air around it becomes less dense and rises; On the contrary, the cold air from all around fills the space. As a result, heat energy is transferred from the cube to the balloons via convection currents.

Therefore, Convection is the mechanism by which heat is transferred from the cube to the balloon. Convection is the movement of currents inside a liquid or gas that transfers heat energy.

Learn more about Convection, here:

https://brainly.com/question/4138428

#SPJ2

Una persona pesa 700 N al nivel del mar. ¿Cuándo sube a un avión a
10000 m de altura pesará más, igual o menos? Bien explicado por favor

Answers

Answer:

The weight of the person decreases.

Explanation:

Weight of person at sea level = 700 N

height = 10000m

We know that the weight is given by product of mass and the acceleration due to gravity.

The acceleration due to gravity at height is given by

[tex]g' =g\times \left ( \frac{R}{R+h} \right )^2[/tex]

Where, R is the radius of earth and h is the height.

Now, as we go on heights , the acceleration due to gravity decreases, so the weight also decreases as we go on heights.

An atom with a mass number of 61 amu has 33 neutrons in its nucleus.
What element is this ?

Answers

Answer:  Nickel

=========================================================

Explanation:

amu = atomic mass unit

If the amu is 61, and we have 33 neutrons, then there are 61-33 = 28 protons. The number of protons directly determines the element. Use the periodic table to find that the element Nickel (symbol "Ni") has 28 protons. The number up top shows the number of protons. For some periodic tables, the number down below (some decimal value) represents the atomic mass. This is usually the average atomic mass when considering all varieties of isotopes.

Nickel is a transition metal found in the middle portion of the periodic table, in the top-most row. It has Cobalt (Co) on the left side, Copper (Cu) on the right side, and Palladium (Pd) below it. See the diagram below.

what is parking orbit?​

Answers

A parking orbit is a temporary orbit used during the launch of a spacecraft. A launch vehicle boosts into the parking orbit, then coasts for a while, then fires again to enter the final desired trajectory.

Hope this helps!

Have a great day :)

Answer:

A temporary orbit in which a spacecraft awaits the next phase of its mission .

When you heat water on a stove, how does its energy change?

Answers

Answer:

tthe body of what it is supplied in its temperature rises

which of the following is not made up of atoms answers choices A heat b tree c balloon ​

Answers

Answer:

the answer is  tree

Explanation:

because tree is made up of woodly barks and not atoms so we can say that tree is the answer. u may wander, why not hear or baloon cause heat is a gas state which is made up of atom and baloon contains gall like helium which is also made up of atom.

hope this helps u

3) A bird flies toward a tree limb at a 45-degree angle to the ground along a path that is 50 m long landing on the limb. Determine, in m, how high above the ground the bird is perched.

Answers

Answer:

35 m

Explanation:

Given :

The distance of the path from the ground to the tree limb = 50 m

The angle between the path of flight of the bird towards the tree limb and the ground = 45 degrees

Therefore we can determine the height above which the bird perched above the ground by using the rules of the trigonometric ratios as;

We know that ,

[tex]$\sin 45^\circ =\frac{\text{perpendicular}}{\text{hypothenus}}$[/tex]

[tex]$\sin 45^\circ =\frac{\text{BC}}{\text{AC}}$[/tex]

[tex]$0.7 =\frac{\text{BC}}{\text{50}}$[/tex]

[tex]\text{BC }= 0.7 \times 50[/tex]

       = 35

Therefore, the bird perched on the tree limb at a height of 35 m.

what happen when I put a coloured ice cube in warm water​

Answers

Answer:

it would melt with the hot weather

Explanation:

It melts and the water changes color

A potential difference of 15 V produces a current of 0.60 amps in a piece of copper wire. What is the resistance of the wire?

9.0 Ω
18.0 Ω
25 Ω

Answers

Answer:

R = 25 Ohms

Explanation:

Given the following data;

Voltage (p.d) = 15 V

Current = 0.6 A

To find the resistance of the wire;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

[tex] R = \frac {V}{I} [/tex]

Substituting into the equation, we have;

[tex] R = \frac {15}{0.6} [/tex]

R = 25 Ohms

Una niña tira de un carrito por medio de una soga. Si realiza una fuerza de 10 N qué forma un ángulo de 30° con la dirección de desplazamiento. ¿Qué trabajo hace al desplazar 300cm?

Answers

Answer:

El trabajo realizado por la niña es 25.9 J.

Explanation:

El trabajo ue hace la niña viene dado por:

[tex] W = |F|*|d|*cos(\theta) [/tex]    

En donde:

F: es la fuerza realizada = 10 N

d: es el desplazamiento = 300 cm

θ: es el ángulo entre la fuerza y el desplazamiento = 30°

Entonces, el trabajo es:

[tex] W = |F|*|d|*cos(\theta) = 10 N*3 m*cos(30) = 25.9 J [/tex]    

Por lo tanto, el trabajo realizado por la niña es 25.9 J.

Espero que te sea de utilidad!        

Other Questions
what areas of life still need to improve for women? support answer with examples. thanks in advance if someone answers!:) What is the value of the expression 9 x 4 - (2 x 1/2) 1d. Conservation of energy is demonstrated in this roller coaster example.The Conservation of Energy is a principle which states that energy cannot be createdor destroyed, but can be altered from one form to anotherFriction plays a significant role in the efficiency of the rollercoaster cars. Explain how, evenwith friction, the law of conservation of energy still holds true. (2 points) The following sample was collected during registration at a large middle school. At the 0.05 level of significance, can it be concluded that level of math is dependent on grade level? Honors Math Regular Math General Math6th Grade 34 45 157th Grade 37 49 138th Grade 29 45 17Hypotheses:H0: Level of math is independent of/dependent on grade level.H1: Level of math is independent of/dependent on grade level.Enter the expected matrix - round to 4 decimal places. what are the health and safety measure to be observed in enhancing finished products 17 points Please help me with the answer and understanding Please actually help me out I want to better understand thistrolls will be reported What is the direction and magnitude of the net dipole of CCl2F2 How are the monotheistic religions (Judaism, Christianity, and Islam) different??plzzz help PLEASE HELP ME ASAP PLEASE!!! THANK YOUYou can transform A to A' by translating it and then performing a dilation centered at A'. Find the translation rule and the scale factor of the dilationSimplify the scale factor and write it as a proper fraction, improper fraction, or whole number.Translation: (x,y) (____, ____)Scale Factor: ____? 12 Qu les gusta? ::1.1The following people all have strong opinions about what they like and what they donot like. In pairs, take turns asking and answering questions using the cues below,clarifying each person's preference.MODELOella / nadar /jugar al tenisA: A ella le gusta nadar?B: No! A ella no le gusta nadar! Le gusta jugar al tenis.1. t / ver televisin/ir al cine2. Uds./ jugar al ftbol / jugar al bisbol3. l/tocar el piano / bailar4. ellas / ir de compras / escuchar msica en laradio y cantar5. los Fernndez / las playas de Puerto Rico / lasplayas de la Repblica Dominicana6. los estudiantes / contestar en ingls / contestaren espaolCan someone please please help me I need it for my final grade thats due tomorrow James is 12 years old and his brother is 16. Which ratio represents James' age to his brother's age 4 years from now? 01 Describe all the possible component of a chart A rock was weighed on a balance and found to have a mass of 34.56 grams. It was placed into water that was in a graduated cylinder. Before the rock was dropped into the water the water level was 22.7 mL. The addition of the solid object caused the water level to rise to 28.1 mL. What is the density of the rock? URGENT PLZ HELP: Graph y = tanx for -pi/4 x x/4.What is the range? How much pressure is created by a circular piston that is 0.24 meter in diameterwith a Force of 200.0 N? N/m2 ... (round answer to nearest ones place -no decimal) Which correctly describes the projected growth of the world's population inthe future?A. The rate of growth will remain the same.B. It will not grow much higher than it is now.C. The population will eventually begin declining.D. The rate of growth will slow down by 2100. explica la historia del disparo a red smith:Terror en winnipegayudaaaa Using the graph of the line below, what is the y coordinate when x = 2? Calculate weight of anhydrous compound from remains upon dehydration of 2g copper sulphate pentahydrate Writing at least 75 words