All categories

4 years ago

What is the gravitational force between two 60.0 kg people sitting 100 m apart?

Physics

1 answer:

Finger [1]4 years ago

7 0

Answer:

2.4 × 10^(-11) N

Explanation:

F = Gm²/r²

F = 6.67×10^(-11) × 60² / 100²

= 2.4×10^(-11) N

You might be interested in

How many protons does a fluortine atom have

Georgia [21]

i think the answer is 9.

6 0

3 years ago

Read 2 more answers

If the ankylosaurs starts running and accelerates at 1.3m/s^2 for 3 seconds how far does he make it before the velociraptor catc

sveta [45]

Acceleration is the change of velocity, and velocity is the change of distance. The opposite of finding change, or differentiation, is integration.

Acceleration = 1.3 m/s²

Velocity: ∫ 1.3 dx = 1.3x + c m/s

Distance: ∫ 1.3x dx = 1.3x²/2 + c m

Distance run: 1.3*3²/2 = 5.85 m

What bad thing happened?

7 0

3 years ago

BRAINLIEST PLEASE: You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes yo

Sophie [7]

Answer:

The velocity with which the stone strikes the water surface is 33.0 m/s (nearest tenth)

Explanation:

Good luck!

3 0

2 years ago

A light-rail commuter train accelerates at a rate of 1.35 m/s2. How long does it take to reach its top speed of 80.0 km/h, start

Alona [7]

Answer:

16.46 seconds.

13.46 seconds

2.67 m/s²

Explanation:

Acceleration = a = 1.35 m/s²

Final velocity = v = 80 km/h = $80\frac{1000}{3600}=\frac{200}{9}\ m/s$

Initial velocity = u = 0

Equation of motion

$v=u+at\\\Rightarrow \frac{200}{9}=0+1.35t\\\Rightarrow t=\frac{\frac{200}{9}}{1.35}=16.46\ s$

Time taken to accelerate to top speed is 16.46 seconds.

Acceleration = a = -1.65 m/s²

Initial velocity = u = 80 km/h= $80\frac{1000}{3600}=\frac{200}{9}\ m/s$

Final velocity = v = 0

$v=u+at\\\Rightarrow 0=\frac{200}{9}-1.65t\\\Rightarrow t=\frac{\frac{200}{9}}{1.65}=13.46\ s$

Time taken to stop the train from top speed is 13.46 seconds

Initial velocity = u = 80 km/h= $80\frac{1000}{3600}=\frac{200}{9}\ m/s$

Time taken = t = 8.3 s

Final velocity = v = 0

$v=u+at\\\Rightarrow 0=\frac{200}{9}+a8.3\\\Rightarrow a=\frac{-\frac{200}{9}}{8.3}=-2.67\ m/s^2$

Emergency deceleration is 2.67 m/s²

3 0

3 years ago

What an objects movement is slowing down it is called ____acceleration

konstantin123 [22]

Explanation:

When an object slows down, its acceleration is opposite to the direction of its motion. This is known as deceleration.

6 0

3 years ago

Read 2 more answers