Train A leaves the station heading north at 80 mph. At the same time and from the same station, Train B heads south 65 mph. How far apart are the trains after 3 hours fo travel?

Answers

Answer 1

Answer:

The trains will be 435 miles apart

Explanation:

Distance covered by the two trains can be obtained by multiplying their speeds with the time frame under consideration - in this our case, it is  3hours.

For Train A

Distance covered = 80mph X 3 hours = 240miles

For train B

Distance covered = 65mph X 3 hours = 195 miles.

The total distance between the two trains after 3 hours will be

240 + 195 = 435 miles


Related Questions

Height of tallest wave possible

Answers

An earthquake followed by a landslide in 1958 in Alaska's Lituya Bay generated a wave 100 feet high, the tallest tsunami ever documented. When the wave ran ashore, it snapped trees 1,700 feet upslope. Five deaths were recorded, but property damage was minimal because there were few cities or towns nearby.

A 2-inch, f/4 reflector has a focal length of:

6 inches
8 inches
4 inches
2 inches

Answers

I’m pretty sure it’s 8 sorry if I’m wrong

How fast is a skydiver going after 5 seconds or free fall and how far did he fall

Answers

Answer:

It's typically around 120mph. You'll reach this speed a few seconds into your jump, so for those few moments straight out the door, you'll be falling a bit more slowly and therefore covering less distance. We usually estimate around 10 seconds for the first 1,000 feet, then 5 seconds for each 1,000 feet after that.

Explanation:

Wave A has a frequency of 1.6 Hz, and Wave B has a frequency of 3.2 Hz. If Wave A has a wavelength of 1.0m, what do you expect will be the wavelength of Wave B?
OPTIONS:
A) 2.0m
B) 1.0m
C) 0.50m
D) 0.25m

Answers

Answer:

C

Explanation:

A- velocity=wavelength*frequency

velocity=1.0*1.6.......=1.6 m/s

B- wavelength=velocity/frequency

wavelength=1.6/3.2.....=0.5 meters


Please help


What differentiates one layer of the atmosphere from one another?



Please help

Answers

Answer: The stratosphere and the troposphere are defined by the variation in temperature with height. Within a troposphere, the temperature drops as altitude increases, and drops fast enough for convection to occur. Whereas within a stratosphere, the temperature rises with increasing altitude. Features of the atmosphere change with altitude: density decreases, air pressure decreases, temperature changes vary. Different temperature gradients create different layers within the atmosphere. The lowest layer is the troposphere where most of the atmospheric gases and all of the planet's weather are located.

Explanation:

Use Gauss's Law to find the electric field produced by an infinite plane of uniformly distributed charge Q, with charge density σ. Draw the appropriate Gaussian Surface

Answers

Answer:

Explanation:

Consider an endless sheet of uniform charge thickness per unit area [tex]\sigma[/tex]  

For a boundless sheet of charge, the electric field will be opposite to the surface. In this way, just the closures of a round and hollow Gaussian surface will add to the electric transition. For this situation, around and hollow Gaussian surface opposite to the charge sheet is utilized. The subsequent field is a large portion of that of a conductor at harmony with this surface charge thickness.  

By balance, we expect the electric field on one or the other side of a plane to be an element of x just to be guided typical to the plane and to point away from/towards the plane contingent upon whether, [tex]\sigma[/tex] is positive/negative.

According to the law;

[tex]2EA = \dfrac{q_{enc}}{\varepsilon_o}[/tex]

[tex]where; \ q_{enc} = total \ enclosed charge = \sigma A \\ \\ thus; \\ \\ 2EA = \dfrac{\sigma A}{\varepsilon_o} \\ \\ E = \dfrac{\sigma}{2 \varepsilon _o}[/tex]

The process of sediments being compacted and cemented to form sedimentary rocks is called

Answers

Answer:

Lithification is the answer.

PLEASE HELP ASAP!!!
GIVING BRAINLIEST!!!
40 points!!

Answers

W = Fd = 4(2100) = 8400 J

So the answer is A) 8400 J


I was just rewriting my notes on the work lesson I did in class today, so I saw this question at the perfect time!! :)

Hope it helps!! :)

Answer:

According to me Option is the right answer

A. 8,400 J

PLS HELPP!! I will make brainliest!!

Nuclear reactions occur when the nuclei of two different atoms collide to produce products that are different from the starting substances. How is this similar to a chemical change?

a. a chemical change can easily be reversed.
b. in a chemical change, mass can be created
c. in a chemical change, energy can be created
d. in a chemical change, a new substance forms​

Answers

Nuclear reactions are independent of the chemical form of the element.

Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei.

D.

Why the same side of the moon is always facing Earth?

A.The time it takes the moon to rotate one time and the time it takes Earth to rotate one time are the same.

B.The time it takes the moon to rotate one time and the time it takes theEarth to orbit the sun one time are the same.

C.The time it takes the moon to rotate one time and the time it takes the moon to orbit Earth one time are the same.

D.The time it takes the moon to orbit Earth one time and the time it takes the Earth to orbit the moon one time are the same.

Answers

Answer:

A

Explanation:

the moon rotates exactly once every time it circles the Earth.

can someone please help me A wave’s velocity is 120 m/sec with a frequency of 6 Hz. What is its wavelength?

Answers

Answer:

by using formula,

wavelength= velocity/frequency

= 120/6

= 20 meter

Ans: 20 meter

Answer:

wavelength= velocity

= 120/6= 20 meter

Explanation:



Which of these statements is true about the effect of a force exerted upon an object?
a. A large force always produces a large change in the object's momentum.
b. A small force always produces a large change in the object's momentum.
c. A small force applied over a long time interval can produce a large change in the object's momentum.
d. A large force produces a large change in the object's momentum only if the force is applied over a very short time interval.

Answers

Answer:

d. A large force produces a large change in the object’s momentum only if the force is applied over a very short time interval.

Explanation:

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

[tex] Momentum = mass * velocity [/tex]

Also, the impulse of an object is given by the formula;

[tex] Impulse = force * time [/tex]

In accordance with the impulse-momentum theorem, the statement which is true about the effect of a force exerted upon an object is that a large force produces a large change in the object’s momentum only if the force is applied over a very short time interval.

Choose the correct words from the box to complete the definition of resistance.
current difficulty ease potential difference
The electrical resistance of a material is a measure of the ______________ of passing a ______________ through it.

Answers

Answer:

Opposition of passing a electric circuit

What is the mass of a large ship that has a momentum of 1.60x10^9 kg*m/s and is moving at a velocity of 10m/s?

Answers

Answer:

160000000 kg.

Explanation:

p=mv

p=1.6x10^9

v=10m/s

rearrange and substitute:

(1.6x10^9)=m(10)

m=(1.6x10^9)/10

m= 1.6x10^8 kg.

Explain the difference between velocity and acceleration.​

Answers

Answer:

velocity has direction and acceleration doesn't

Acceleration is increasing or decreasing speed or changing direction, whereas velocity is how much distance you cover in a given amount of time.

Does California have enough water?

Answers

Answer:

As the world's largest, most productive, and most controversial water system, it manages over 40 million acre feet (49 km3) of water per year. Water and water rights are among the state's divisive political issues. Due to the lack of reliable dry season rainfall, water is limited in the most populous U.S. state.

What is the limiting factor of speed for an object falling through a vacuum?

Answers

★☆〖Qบęຮτ ı¨ ø nˇ〗☆★

Air Resistance is the factor, which limits the speed of an object falling through the air...⭐

____________________________________________________

<Judge It Yourself...>

Hope it helps you! ヅ

✪ Be Brainly ✪

a wagon of mass 42 kg is pushed by a student a distance of 12.2 meters, and 297 j of work was sone on the wagon how much force did the student apply assuming that it was constant

Answers

Answer:

Force=2.484 N

Explanation:

[tex]f = \frac{w}{gh} \\ = \frac{297}{9.8 \times 12.2} \\ f = 2.484 \: n [/tex]

Hope it helped

PLS mark BRAINLIEST

A wagon of mass 42 kg is pushed by a student a distance of 12.2 meters, and 297 j of work was done on the wagon force did the student apply is 24.34 N.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

work = force*distance

force = work/distance

force = 297/12.2

force = 24.34 N

A wagon of mass 42 kg is pushed by a student a distance of 12.2 meters, and 297 j of work was done on the wagon force did the student apply is 24.34 N.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ2

How do you find your target heart rate for a female

Answers

subtract your age from 220

Which type of waves are able to travel through various types of media and space
a) body
b) electromagnetic
c) parabolic

Answers

Answer:

B

Explanation:

......................

Niceeeeeeeeeeeeeeeeeeeeeeeeee

A 12 kg object is moving at 10 m/s to the right. It collides with a 20 kg object moving at 7
m/s to the right. What speed will the objects move together after they collide and stick
together?*

a) 5.27 m/s
b) 08.13 m/s
c) 3 m/s
d) 17.23 m/s

Answers

Answer:

Change in velocity

−2−10=−12

Time required is 4 seconds

a=Δv/t

=−12/4

=−3m/s²

Hence,

option C is correct answer.

How many seconds will it take for a the International Space Station to travel 450 km at a rate of 100 m/s?

Answers

Time = (distance) / (speed)

Time = (450 km) / (100 m/s)

Time = (450,000 m) / (100 m/s)

Time = 4500 seconds (that's 75 minutes)

Note:

This is about HALF the speed of the passenger jet you fly in when you go to visit Grandma for Christmas.

If the International Space Station flew at this speed, it would immediately go ker-PLUNK into the ocean.

The speed of the International Space Station in its orbit is more like 3,100 m/s, not 100 m/s.

A drone flies upward with a velocity of 5m/s and has a kinetic energy of 90J What is the mass of the drone?
O 5.4 kg
1.9 kg
7.2 kg
3.6 kg

Answers

Answer:

m = 7.2 kg

Explanation:

Given that,

The velocity of the drone, v = 5 m/s

The kinetic energy of the drone, E = 90 J

We need to find the mass of the drone. The formula for the kinetic energy of an object is given by :

[tex]K=\dfrac{1}{2}mv^2\\\\m=\dfrac{2K}{v^2}\\\\m=\dfrac{2\times 90}{(5)^2}\\\\m=7.2\ kg[/tex]

So, the mass of the drone is 7.2 kg.

A square brass plate has large circular hole cut in its centre. If the plate is heated, it will expand. Will the diameter of the hole expand or contract? Explain your answer.​

Answers

Mother helped her out for her birthday party

Read the passage.

The moon is one-fourth the size of Earth, and the moon’s gravity is about one-sixth of Earth’s. Less gravity and no atmosphere means that objects travel farther when thrown on the moon.

Based on the information provided, what visual information would be most helpful to include with the passage?

a chart comparing the sizes of the moon and the Earth
a diagram showing how gravity affects the path of a thrown object
a photograph of a child throwing a ball for a dog to catch
a graph comparing distances traveled by objects thrown on Earth and the moon

its d

Answers

Answer:

d in my opinion is the most opitmal answer

Explanation:

aka a graph comparing distances traveled by objects thrown on Earth and the moon

Answer:

Its d

Explanation:

a graph comparing distances traveled by objects thrown on Earth and the moon

a stone is dropped from the top of a tower 400 m high and at the same time another stone is projected upward vertically from the ground with a velocity of 100 m/s. find where and when the two stones will meet.

Answers

Answer:The stones will be at the same height of 62.59 feets 4.4 seconds later.

Explanation:

A 500g glass statue is accidentally knocked from a shelf 1.5m high. If 3% of the gravitational potential energy is converted into heat, how much does the statue’s temperature rise

Answers

Answer:

0.0001158443168226212 Celcius (significant digits? who cares.....) or about 0.00021 Fahrenheit

Explanation:

500g=0.5kg

PE=mgh

PE=(0.5)*(9.81)*(1.5)

PE=7.36J

3% of 7.36 is 0.22J is converted to heat

From there, it's tricky.

I just used a joules to celcius converter to get 0.0001158443168226212 degrees celcius or 0.00021 degrees fahrenheit rise in temp.

When you stretch a spring, there is energy in the spring's
potential energy store. What word completes the sentence?

Answers

Answer:

field strength i think, I'm not that sure.

A 1400-kg car is moving at a speed of 35 m/s. How much kinetic energy does the car have (in Joules)?

Answers

Answer:

857.5Kjoules

Explanation:

Using K. E=1/2 Mv^2

=1/2x1400x35x35

=857500joules

=857.5KJ

A biker travels at an average speed of 18 km/h along a 0.30-km straight segment of a bike path. How much time ( in hours)does the biker take to travel this segment?

Answers

Answer:

The biker will take "0.016 hours".

Explanation:

The given values are:

Average speed,

[tex]V_{avg}[/tex] = 18 km/h

Distance,

d = 0.30 km

As we know,

⇒  [tex]V_{avg}=\frac{d}{t}[/tex]

or,

⇒  [tex]t=\frac{d}{V_{avg}}[/tex]

On substituting the values in the above formula, we get

⇒     [tex]=\frac{0.30 \ km}{18 \ km/h}[/tex]

⇒     [tex]=0.016 \ hours[/tex]

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