As earths plates move apart at some boundaries, they collide at others, forming

Answers

Answer 1

Answer: Mountains and volcanoes are formed when boundaries collide (convergent boundaries)

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A car that travels from point A to point B in four hours, and then from point B back to point A in six hours. The road between point A and point B is perfectly straight, and the distance between the two points is 240 km. What is the car’s average velocity?

Answers

Note : Be careful with speed and velocity, even the formula is same that $v = (x)/(t)$

1. If we would like to find the velocity, we must calculate the distance from initial to final, $x_(f) - x_(i) = (delta)x$ ,

2. If we would like to find the speed, we must calculate the total distance that travelled ( $x_(total)$ .

So, in this question, because it return back to its initial point so (delta)x = 0, so average velocity is 0 m/s.

If you mean average speed, it is 480/10 = 48 kn/h

If you mean average velocity, it is 0/10 = 0 km/h

What was the rule of the sticks on each atom model

Answers

Answer:

That they must die

Explanation:

Stick = Die

Answer: That they must die

Excellent

A net force of 40 N south acts as an object with a mass of 20kg. What is the object's acceleration

Answers

Answer:

a = 2 m/s²

Explanation:

Given: 20 g, 40N

To find: Acceleration (a)

Solution: To find the acceleration (A), divide the force by the weight

A = F ÷ m

= 40 ÷ 20

= 2 m/s²

Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.

A screenshot of the question is attached. Gravity=10N/Kg

Answers

Answer:

1.8 MJ

Explanation:

PE = mgh

PE = (1500 kg) (3.7 N/kg) (324 m)

PE = 1,798,200 J

PE = 1.8 MJ

1) A sound wave with a frequency of 300 hertz is traveling through a medium at a speed of 320 meters/second. What is its wavelength? 2) A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?
a.0.890hertz
b.100hertz
c.230hertz
d.733

Answers

1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,
λ = s / f = (320 m/s) / (300 1/s) = 1.07 m
The wavelength is approximately 1.07 m.

2. The frequency is the ratio between speed and the wavelength,
f = (330 m/s) / 0.45 m = 733.33 hertz

1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,

λ = s / f = (320 m/s) / (300 1/s) = 1.07 m

The wavelength is approximately 1.07 m.

2. The frequency is the ratio between speed and the wavelength,

f = (330 m/s) / 0.45 m = 733.33 hertz

You are riding in a vehicle with a coffee cup on the dashboard while traveling 30 km/h. The vehicle makes a sudden stop to avoid hitting the car that hasstopped in front of it.

Answers

Answer:

It would move forward.

Explanation:

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