A train leaves the station heading south on the tracks. It takes the train 5 seconds to reach 50 miles per hour. It completes the entire 100-mile trip in two hours. Calculate the train's average speed and velocity over the two-hour trip. Show your work. Identify if each of the measurements are a scalar or vector quantity

Answers

Answer 1
divide until you figure out how many miles they went per second. If it takes 5 seconds to reach 50 miles per hour it took 10 seconds per every 10 miles meaning each mile took 1 second. (Not actually possible but the answer) So, If it finished a 100 mile trip in 2 hours it took an hour for 50 miles. If it took 1 hour for 50 miles divide 60/50 which gets you 1.2 so it took 1.2 miles per minute meaning the car went 120 miles per hour I believe. I hope this helps :)

Related Questions

A 1000 kg car’s velocity increases from 5 m/s to 10 m/s. What is the change to the car’s kinetic energy? Show your work.

Answers

Answer:

k. e. = 1/2 mv^2

1/2 * 1000 * (5)^2

1/2 * 1000 * 25

12500 joules

k. e. = 1/2 mv^2

1/2 * 1000 * (10)^2

1/2 * 1000 * 100

50000

change in k. e. = final - initial

50000 - 12500

= 37500 joules

hope it helps you

Which statement describes the relationship between bond strength and the
melting and boiling points of a substance?
A. Substances held together by hydrogen bonding have lower melting
and boiling points than those held together by Van der Waals
forces.
B. Substances held together by ionic bonding have higher melting
and boiling points than those held together by hydrogen bonding.
C. Substances held together by Van der Waals forces have higher
melting and boiling points than those held together by ionic
bonding
O D. Substances held together by ionic bonding have lower melting and
boiling points than those held together by hydrogen bonding.
SUB

Answers

Answer: Wrong

Explanation:

The statement that accurately describes  the relationship between bond strength and the melting and boiling points of a substance is; "substances held together by ionic bonding have higher melting  and boiling points than those held together by hydrogen bonding."

Intermolecular forces refers to forces of attraction that holds molecules together in a particular state of matter. The nature and magnitude of intermolecular forces impacts on the magnitude of the melting and boiling points of substances.

Substances held together by ionic bonding have higher melting  and boiling points than those held together by hydrogen bonding. The bonds between ionic substances can only be broken at very high temperature.

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Describe how elements are different from atoms

Answers

Answer:

An atom is the part of an element. A particular element is composed of only one type of atom. Atoms are further composed of subatomic particles called electrons, protons and neutrons. Elements can combine with each other to form molecules via chemical reaction.

An atom is the smallest component of an element, containing neutrons, protons and electrons, and makes up everything around us.
An element is a substance in which all of the atoms have the same atomic (proton) number. It is also defined as a substance which cannot be broken down by chemical means.

What is everything in our physical environment made of? *
A matter
B solids
C gases

Answers

Answer: matter

Explanation:

The answer is A matter

Which of these force&mass pairs will result in the largest acceleration? *
50 N and 5 kg
60 N and 3 kg
30 N and 1 kg
25 N and 100 kg
10 N and 8 kg

Answers

Answer:

30N and 1 kg has largest acceleration

hope it helps you

What type of matter is likely to absorb the most sound waves

Answers

Answer:

Things like cloth and softmaterial, pliable, or porous materials

Explanation:

Answer:

Porous absorbers e.g paper, cardboards


Which statement accurately compares the trends in atomic number and atomic mass in the periodic table?
O The atomic number increases from left to right, while the atomic mass increases from right to left.
O The atomic mass increases from left to right, while the atomic number increases from right to left.
O Both the atomic mass and the atomic number increase from left to right.
O Both the atomic mass and the atomic number increase from right to left.

Answers

Answer:

C.

That is your answer  

Ozone gas in the atmosphere protects living things on Earth from some of the Sun's harmful
rays. The chemical formula for ozone is 03.

Complete the statement.
Ozone is
an elementary substance
or is it an compound

Answers

Answer:

Ozone is a compound.

Explanation:

Elements are simple atoms that can merge or combine to produce a bigger molecule called a compound. They can not be splitted into smaller atoms. Examples are: hydrogen, carbon, etc.

A compound is formed as a result of the combination of two or more elements. They can be splitted into elements. Examples are: ammonium, water, carbon dioxide etc.

Ozone ([tex]O_{3}[/tex]) is a less stable allotrope of oxygen which is made up of three atoms of oxygen. Therefore, it is a compound.

is cereal a soup? explain why or why not

Answers

Answer:

no

Explanation:

because its cold

soup is hot

Glider‌ ‌A‌ ‌of‌ ‌mass‌ ‌0.355‌ ‌kg‌ ‌moves‌ ‌along‌ ‌a‌ ‌frictionless‌ ‌air‌ ‌track‌ ‌with‌ ‌a‌ ‌velocity‌ ‌of‌ ‌0.095‌ ‌m/s.‌ ‌It‌ ‌collides‌ ‌with‌ ‌glider‌ ‌B‌ ‌of‌ ‌mass‌ ‌0.710‌ ‌kg‌ ‌moving‌ ‌in‌ ‌the‌ ‌same‌ ‌direction‌ ‌at‌ ‌a‌ ‌speed‌ ‌of‌ ‌0.045‌ ‌m/s.‌ ‌After‌ ‌the‌ ‌collision,‌ ‌glider‌ ‌A‌ ‌continues‌ ‌in‌ ‌the‌ ‌same‌ ‌direction‌ ‌with‌ ‌a‌ ‌velocity‌ ‌of‌ ‌0.035‌ ‌m/s.‌ ‌What‌ ‌is‌ ‌the‌ ‌velocity‌ ‌of‌ ‌glider‌ ‌B‌ ‌after‌ ‌the‌ ‌collision?

Answers

Answer:

vB' = 0.075[m/s]

Explanation:

We can solve this problem using the principle of linear momentum conservation, which tells us that momentum is preserved before and after the collision.

Now we have to come up with an equation that involves both bodies, before and after the collision. To the left of the equal sign are taken the bodies before the collision and to the right after the collision.

[tex](m_{A}*v_{A})+(m_{B}*v_{B})=(m_{A}*v_{A'})+(m_{B}*v_{B'})[/tex]

where:

mA = 0.355 [kg]

vA = 0.095 [m/s] before the collision

mB = 0.710 [kg]

vB = 0.045 [m/s] before the collision

vA' = 0.035 [m/s] after the collision

vB' [m/s] after the collison.

The signs in the equation remain positive since before and after the collision, both bodies continue to move in the same direction.

[tex](0.355*0.095)+(0.710*0.045)=(0.355*0.035)+(0.710*v_{B'})\\v_{B'}=0.075[m/s][/tex]

Sam is moving house and is carrying a 300N box of books up a flight of steps 5m high, it takes her 30 seconds. Gary follows her carrying a bag of clothes doing 1000 J of work; it only takes him 25 seconds. Who provides the biggest power? Show your working.

Answers

Answer:

Sam is providing the biggest power i.e. 50 W

Explanation:

Sam is moving house and is carrying a 300N box of books up a flight of steps 5m high, it takes her 30 seconds.

Sam's power :

[tex]P_1=\dfrac{W_1}{t_1}\\\\P_1=\dfrac{F_1d}{t_1}\\\\P_1=\dfrac{300\times 5}{30}\\\\P_1=50\ W[/tex]

Gary follows her carrying a bag of clothes doing 1000 J of work; it only takes him 25 seconds.

Gary's power :

[tex]P_2=\dfrac{W_2}{t_2}\\\\P_2=\dfrac{1000}{25}\\\\P_2=40\ W[/tex]

So, it is clear that Sam is providing the biggest power.

The shortstop plays between first and second base.
true or false

Answers

SINGLE TO RIGHT OR CENTER FIELD-On a single to center or right field the first baseman will be the cutoff to home. The shortstop will cover second base.

Given the impulse acting on an object and the impact time which equation can be used to calculate the force applied to an object

Answers

Answer is D

Ndmdjdndbdjdkskd

The impulse acting on an object and the impact time, the equation F= I / Δt can be used to calculate the force applied to an object, therefore the correct answer is D.

What is impulse?

The product of the average applied force and the time for which it is exerted is known as an impulse.

the mathematical relation for impulse is

Impulse  = F * Δt

where F represents the force applied and Δt represents the time for which the force is applied

Thus, the correct equation that can be used to calculate the force applied to an object is F = I /Δt and the correct option is D.

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magnetic field strength decrease when what is increases

Answers

Ans: One way to increase or decrease the strength of the magnetic field is to change the number of loops in the coil. The more loops you add, the stronger the field will become. The more loops you remove, the weaker the field will become.

How are mass and volume alike?


They always stay the same

They are both measured in grams

The cease to exist when placed in a liquid

Answers

Answer:

its b

Explanation:

b

In your own words explain how acceleration differs from uniform motion.

Answers

Explanation:

acceleration is the Changing of throut per unit time ....

and in uniform motion .....

in that the speed of an object is uniform means same

YALL PLS HELP ME! CAN YOU GUYS CHECK MY ANSWERS?

Answers

Answer:

1. Newton's First Law of Motion

2.Newton's Third Law of Motion

3.Newton's Third Law of Motion

4.Newton's Second Law of Motion

5.Newton's Third Law of Motion

6.Newton's Second Law of Motion

7.Newton's First Law of Motion

Explanation:

Newton's First Law of Motion states that an object remain at rest or moving with a uniform velocity unless an external force acts on it. This is the law of inertia

Newton's Second Law of Motion states that the force of an objects is the product of mass and acceleration.

Newton's Third Law of Motion states that when two objects interact, a pair of forces act on the objects, and they are equal and act in opposite directions.

What is the acceleration due to gravity near the earth’s surface?

Answers

-9.8 m/s^2 would be right.

Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2

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where should i graph the distance in a distance time graph

Answers

Answer:

Distance in Y axis and Time in axis

Answer:

the distance should be on the Y axis (vertical) and the time should be on the X axis (horizantial)

In an open circuit ____________.

Question 34 options:

a light bulb would produce light


current will flow


current will not flow


more than one resistor is in the circuit


a resistor controls the flow of current

Answers

Answer:

The current will not flow

Explanation:

An open circuit is a circuit that is not complete it has an opening Therfor the current can not flow.

Gravity can be described as (2 points)
O a magnetic force found in nature
O the force that moves electrical charges
O the force that repels object with like charges
O the force of attraction between two objects

Answers

Hello the correct answer is:
The force of attraction between two objects

Hope this helped
The force of attraction between two objects, i found the answer on the website: starchild.gsfc.nasa.gov

What is the main difference between speed and velocity?​

Answers

Answer:

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.

Answer:

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.

Explanation:

An LED light bulb is favored over an incandescent light bulb because it is more , what?

Answers

An LED light bulb is favoured because it is more bright.

An LED light is favored over an incandescent light bulb because it is more bright than the incandescent bulb.

What is an LED bulb?

An LED is a light emitting diode. It is used widely for the production of light because it shows some advantages which include:

Many traditional lighting systems like the incandescent bulbs turn more than 90% of the energy which they use to heat, allocating only about  10% of energy to actual light production. LEDs emit almost no heat energy, and most of the light energy they emit is within the visible spectrum.

LEDs use much less energy than that of incandescent bulbs because the diode light is much more efficient, power-wise, than the filament light. LED bulbs use more than 75% less energy than those of incandescent lighting.

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How do I find the change in velocity of a hockey puck?
Mass=0.1697 kg btw

Answers

Answer:The foot exerts a force on the ball during a well-defined

duration t (time extent of the contact)

Explanation:

what reactions do catalytic converters catalyze

Answers

A catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction (an oxidation and a reduction reaction).

why do prescribed drugs need to be prescribed by doctors what can happen if you abuse these drugs without a pressure?

Answers

Answer:

unperscriebed drugs can e harmful to your body

Explanation:

Pls Solve this!!!Im giving 20 points and Brainliest to the one who answers first. HELP ME PLEASE!!!!!!!!

Answers

Answer:

i) 2Mg + O₂ + Δ Heat → 2MgO + Δ Energy

ii) The aqueous solution does not change in the color of the blue litmus paper and the blue litmus paper remains blue in color

The aqueous solution formed using the product (MgO) turns the red litmus paper blue

Explanation:

i) Magnesium easily burns in air or oxygen when heated to form a white powder of magnesium oxide. The burning (reaction) of magnesium in air is an exothermic reaction that involves the release of heat and light

The burning of magnesium wire is given by the following chemical reaction;

2Mg + O₂ + Δ Heat → 2MgO + Δ Energy

ii) When magnesium oxide is mixed with water if forms magnesium hydroxide Mg(OH)₂ as shown in the following chemical reaction;

MgO + H₂O → Mg(OH)₂

Magnesium hydroxide is basic and therefore it will turn red litmus paper blue and it does not change the color of the blue litmus paper.

in physics, the use of force to move an object is called

Answers

Answer:

In physics, work means the use of force to move an object. ... Not all force that is used to move an object does work. For work to be done, the force must be applied in the same direction that the object moves

The use of force to move an object is called Work.

A force can change the motion of an object. A force causes an object with mass to change its velocity (acceleration).

[tex]\bold{Force = Mass\times acceleration}[/tex]

while work is the result of the action when a force causes an object to move in the direction of the force.

[tex]\bold{Work= Force\times Displacement}[/tex]

Therefore, the use of force to move an object is called Work.

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A wire of resistance R is cut into ten equal parts which are then connected in parallel. The equivalent resistance of the combination is

Answers

Answer:

The equivalent resistance of the combination is R/100

Explanation:

Parallel Connection of Resistances

If resistances R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:

[tex]\displaystyle \frac{1}{R_e}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...+\frac{1}{R_n}[/tex]

The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.

It's known the 10 parts or resistance R/10 were connected in parallel, thus the electric resistance is:

[tex]\displaystyle \frac{1}{R_e}=\frac{1}{R/10}+\frac{1}{R/10}+\frac{1}{R/10}+...+\frac{1}{R/10}[/tex]

Note the sum consists of 10 equal terms. Operating on each term:

[tex]\displaystyle \frac{1}{R_e}=\frac{10}{R}+\frac{10}{R}+\frac{10}{R}+...+\frac{10}{R}[/tex]

The sum of 10 identical fractions yields 10 times each fraction:

[tex]\displaystyle \frac{1}{R_e}=10\frac{10}{R}=\frac{100}{R}[/tex]

Solving for Re needs to take the reciprocal of both sides of the equation:

[tex]R_e=R/100[/tex]

The equivalent resistance of the combination is R/100

what english word does the following- the first two signify a male, the 1st 3 letters support a female, the first four support a great signifiles a woman. What is the english word?

Answers

Answer:

lol i know - i was rushing -_-

he= male

her=female

One word with both is heroin but Im not 100% sure

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