Help me PLEASE! 25 points!!!!! :)

Help Me PLEASE! 25 Points!!!!! :)

Answers

Answer 1

Answer:

A.

Explanation:

All the arrows align to the point right


Related Questions

Plz di all plz i will give brainest and thanks to best answer do it right

Answers

Answer is wavelength

Hope this helps and good luckkk :))))

A 50 kg object is accelerating to the right at 5 m/s2. What is the net force acting on the object?

Answers

Answer:

250 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 50 × 5

We have the final answer as

250 N

Hope this helps you

If a refrigerator draws about 0.5 amps when plugged into a 120 V wall outlet how much power (watts) does it use?

Answers

Answer:60 W

Explanation:

where does reduction occur in an electrolytic cell
a. cathode
b. salt bridge
c. anode
d. wire

Answers

Answer:

The answer is actually a. Cathode

Explanation:

Just took the quiz

In an electrolytic cell, the reduction occurs at the cathode. So, the correct option is a.

What is meant by reduction ?

Reduction is defined as the process through which a reactant gain electrons during a chemical reaction.

Here,

An electrolytic cell is an equipment that uses electric current to drive a redox reaction.

Redox reactions are the type of reaction that involves the transfer of electrons between the reactants. That means, in redox reactions, both oxidation and reduction occurs. The reactant that gains the electrons is said to be reduced and the one that losses the electrons is said to be oxidized.

In an electrolytic cell, cathode is the positively charged electrode. So, electrons are attracted towards it, and as a result, the cathode gets reduced.

Hence,

In an electrolytic cell, the reduction occurs at the cathode.

To learn more about reduction, click:

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1. Which statement best describes the motion of the scooter? *
A. The scooter is moving at a constant velocity.
B. The scooter is traveling up hill.
C. The scooter is speeding up at a constant rate.
D. The scooter’s motion cannot be described from a position graph.


2. What is the velocity of the scooter? *
A. 50 m/s
B. 10 m/s
C. 1.0 m/s
D. 0.0 m/s
E. Cannot answer velocity questions using a position graph

Answers

Answer:

HI

Explanation:

its E

Which of the following is most accurate statement about both light and sound wave

Answers

Where is the statement?

What term or phrase describes a point that appears to stay in place and can be used to detect the motion of an object?

Answers

the answer should be a reference point

Answer:

reference point

Explanation:

you can use a reference point to tell when an object is in motion or staying still. :)

A car with a mass of 1600 kg is towing a trailer with a mass of 420 kg. The car
provides a forward thrust of 3300 N. What is the acceleration of the trailer?

Answers

Answer:

1.63366

Explanation:

I got this answer from calculator soups physics calculators. I really recommend their website for formulas.  

Which of the following is the keyboard shortcut for saving a document?
O Control V
O Control S
O Control A
O Control E

Answers

Cntrl s
good luck :)))

Answer:Control S, Command S on MAC=Save

How do I calculate how many meters are in 7.2 light years?
The exact question is:
Calculate in meters the distance between a galaxy and the Earth if the distance is equal to 7.2 light years.

Answers

Answer:

68.2 Quadrillion meters

Explanation:

A lightyear is the distance that light travels in one year.

Speed of light is [tex]3*10^8\ m/s[/tex]

So light covers 300,000,000 meters in one second.

One year has 31536000 seconds so , light covers

[tex]9.461*10^{15}\ meters\ in\ one\ year[/tex]

so 7.2 light years is

[tex]7.2*(9.461*10^{15})\\6.82*10^{16}[/tex]

so 7.2 light years is

6.82 x 10^(16) meters or

68.2 Quadrillion meters

Ronald observes a large island off the coast of Indonesia on a map. A few months later, he observes that there are many smaller islands in place of the large one he had seen earlier. Which of these could have caused this change?

Answers

D is the correct answer

Answer:

idgaf

Explanation:

lol

HELP ASAP !
Which of the following situations would result in no work done by the force indicated?

a
The object undergoes only a slight displacement while the force is acting on it.
b
The force is perpendicular to the displacement of the object.
c
The force is not completely parallel to the displacement of the object
d
All of the above result in no work done by the force indicated.

Answers

Answer:

b  The force is perpendicular to the displacement of the object.

Explanation:

Work is done when a force is applied on a body causing it to move in a particular direction.

  Work done  = Force x displacement

For work to be done, a force must applied on a body to move it through a specific distance in direction.

When force is perpendicular to the displacement of the object, the component vector resolution is 0 and the work done is 0.

what is the two kinds of solids in amorphous

Answers

Solids can be classified into two types: crystalline and amorphous. Crystalline solids are the most common type of solid. They are characterized by a regular crystalline organization of atoms that confer a long-range order. Amorphous, or non-crystalline, solids lack this long-range order.

Answer: Key Points
Explanation: Solids can be classified into two types, crystalline and amorphous. They are characterized by a regular crystalline organization of atoms that confer a long-range order.
Amorphous, or non-crystalline, solids lack this long-range order.

If this does not answer your question, we can have a conversation in the comments of this answer. Thank you.

If you are sitting in a bus that is traveling along a straight, level road at 100 km/hr., you are traveling at 100 km/hr too. (a) If you hold an apple over your head, how fast is it moving relative to the road? (b) Relative to you? (c) If you drop the apple, does it still have the same horizontal motion? Explain.
What Law is it?

Answers

(a) The velocity of the apple with respect to the road is 100 km/h.

(b) The velocity of the apple with respect to you is 0 km/h.

(c) If you drop the apple the horizontal velocity will not change due to law of conservation of linear momentum.

What is the relative velocity of the apple?

The relative velocity of the apple placed over your with respect to the road is calculated as follows;

Velocity of the apple = 100 km/h

Velocity of the road = 0 km/h

Va/r = 100 km/h - 0 km/h

Va/r = 100 km/h

The velocity of the apple relative to you is calculated as follows;

your velocity = 100 km/h

velocity of the apple = 100 km/h

Va/y = 100 km/h - 100 km/h

va/y = 0 km/h

If you drop the apple, the horizontal velocity will remain the same, because gravity does not affect horizontal motion.

The law is law of conservation of linear momentum.

Learn more about relative velocity here: https://brainly.com/question/17228388

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Which is true of the greenhouse effect?

A. It is purely a manmade phenomenon.
B. it does not involve carbon dioxide.
C. It causes cooling of Earth's atmosphere.
C. it traps thermal energy from the Sun.

Answers

Answer:

c is correct option thanks to brainly

how longitudinal waves are formed

Answers

Answer:

forever

Explanation:

Air molecules move in a direction that is parallel to the direction that the wave moves, the sound waves is referred as a longitudinal wave .

Should the resistance of an ammeter low or high ?give reason

Answers

Answer:

The resistance of an ammeter should be low. This is because an ammeter is connected in series with the circuit for the measurement of electric current. In case, its resistance is high, then some amount of current may lost in heating it leading to the inaccurate reading. An ideal ammeter is one which has zero resistance.

it is very important to use _______ in your calculations
a: si units of measurement
b: alternative units of measurement
c : units of length and width
d: derived units

Answers

Answer:

snoemw

Explanation:

If you add an additional neutron to an atomwhat do you create?

Answers

Answer:

However, if you add a thousand neutrons, you will be creating one super-radioactive atom. Neutrons play a major role in the mass and radioactive properties of atoms. You may have read the page on isotopes. Isotopes are created when you change the normal number of neutrons in an atom.

Explanation:

The neutron is a subatomic particle, symbol n or n⁰, which has a neutral (not positive or negative) charge and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms. Since protons and neutrons behave similarly within the nucleus, and each has a mass of approximately one atomic mass unit, they are both referred to as nucleons. Their properties and interactions are described by nuclear physics.

Help me pretty please with a cherry on top!!

Answers

it doesnt show anything for me..


explaination :: cornje

Answer:

A. im not for sure hope it helps

Explanation:

21. A teacher does the following:
i. walks 4 m, south
ii. walks 8 m, east
iii. walks 4 m, north
iv. walks 8 m, west.
The overall displacement of the teacher is
a. Om
b. 6 m
c. 12 m
d. ... Nonsense! It cannot be calculated without knowing time information.

Answers

Answer:

displacement is the change from a starting point. she ends up back where she started so her displacement is zero meters although she traveled 24m in all.

Which of the following is NOT a characteristic of members of the plant kingdom?

A.Specialized tissues for water absorption

B. Cells are eukaryotic

C. Perform photosynthesis to produce glucose

D. Cell wall made of cellulose

Answers

Answer:

A. i think

Explanation:

a. specialized tissues for water absorption

A 20 kg mass is hanging on one side of a pulley and a 5 kg mass is hanging on the other. Determine the acceleration of each mass.

Answers

Answer:

i believe it's 7

Explanation:

A food packet is dropped from a helicopter during a flood-relief operation from a height of 750 meters. Assuming no drag (air friction), what will the velocity of the packet be when it reaches the ground?

Answers

Answer: 121.2 m/s

Explanation:

Here we will use the conservation of energy.

We can write the total energy of an object as:

E = K + U

For this particular case we have:

K = kinetic energy = (m/2)*v^2

U = potential energy = m*g*h

where:

m = mass of the object.

g = gravitational acceleration = 9.8m/s^2

h = height at which the object is dropped, in this case 750m

v = velocity of the object.

Right when the packet is dropped, it's velocity is equal to zero, this means that there is no kinetic energy and only potential energy, then we have:

Ei = Ui = m*9.8m/s^2*750m = m*(7350m^2/s^2)

And when the object is about to hit the ground, h will be almost equal to zero, this will mean that we will have only kinetic energy, and because of the conservation of energy, this final energy must be the same as the initial energy, then we will have

Ei = Ef

m*(7350m^2/s^2) = Ef = Kf

m*(7350m^2/s^2) = (m/2)*v^2

We can divide by m in both sides to get:

(7350m^2/s^2) = (1/2)*v^2

√( 2*(7350m^2/s^2)) = v = 121.2 m/s

Then the velocity of the packet when it reaches the ground is 121.2 m/s

A 10kg ball has a momentum of 40 kg.m/s. What is the ball’s speed.

Show the work and equations.

Answers

Answer:

4 m/s

Explanation:

The speed of the ball can be found by using the formula

[tex]s= \frac{p}{m} \\ [/tex]

p is the momentum

m is the mass

From the question we have

[tex]v = \frac{40}{10} = 4 \\ [/tex]

We have the final answer as

4 m/s

Hope this helps you

6. A car drives 750 miles in 10 hours. Calculate the speed of the truck


.

Answers

Answer:

75 miles an hour

I hope this is correct and helps

Which type of air mass forms over the ocean near the equator?
A
moist and warm

B
moist and cool

C
dry and warm

D
dry and cool

Answers

Answer:

a

Explanation:

The answer is A. Moist and Warm

Which pair of concurrent forces could produce a resultant force having a magnitude of 10. Newtons?

Answers

The pair of concurrent  forces will be of 5 N to make the magnitude of net force as 10 N.

Given data:

The magnitude of resultant force is, [tex]F_{net}=10 \;\rm N[/tex].

The given problem is based on the concept of concurrent forces which says that, If the forces applied to a body are such that their lines of action meet at a single point, then they are called concurrent forces.

Now to obtain the value of concurrent forces, let us consider the forces F and F' to be acting along a linear direction. Such that the net force is given as,

[tex]F_{net}=F+F'[/tex]

Then for 10 N of net force, the pair of concurrent force is,

[tex]10=F+F'\\\\10=5+5\\\\10=10[/tex]

Thus, we conclude that the pair of concurrent forces will be of 5 N to make the magnitude of net force as 10 N.

Learn more about the concurrent force here:

https://brainly.com/question/2411525

7. A 1000-kg car comes to a stop without skidding. The car's brakes do 50,000 J of work
to stop the car. Which of the following was the car's velocity when the brakes were
initially applied?

Answers

Answer:

10 m/s

Explanation:

41. What effects the efficiency of a pulley?

a. the type of rope or cable

b. the way the wheel turns

c. the length of the rope

d. how big the wheel is

e. only a and be

f. all of the above

Answers

Answer:

e. only a and b

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