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4 years ago

Indicate whether the statement is true or false. A force can be simply defined as a push or a pull.

1 answer:

5 0

This B: False, because the definition is lacking.

Force is when two objects interact with one another causing it to either move or not move. In our daily lives there are a lot of times force is exerted upon us, rather force is everywhere and here are the evidences:

*Pushing a cart
*Pushing a wall
*Hitting a baseball bat
*Apple falling down from a tree.
*Balls hitting one another
*A swinging pendulum
*Throwing a paper with stone above it
*Breaking of glass in the floor
*Falling of leaves on the grass <span> </span>

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What is the force of gravity (from the Earth) on the 700kg satellite if it’s 10km above the Earth's surface?

BabaBlast [244]

Answer:

g = 4.7 × $10^{-16}$ m/ $s^{2}$

Explanation:

Given that the mass of the satellite = 700 kg, and 10,000 m above the earth;s surface.

From Newton's second law,

F = mg ............... 1

From Newton's gravitation law,

F = $\frac{GMm}{r^{2} }$ .................. 2

Where: F is the force, G is the gravitational constant, M is the mass of the first body, m is the mass of the second body, g is the gravitational force and r is the distance between the centers of the two bodies.

Equate 1 and 2 to have,

mg = $\frac{GMm}{r^{2} }$

⇒ g = $\frac{GM}{r^{2} }$

But; G = 6.67 × $10^{-11}$ N $m^{2} Kg^{-2}$ , M = 700 Kg, r = 10000 m

Thus,

g = $\frac{6.67*10^{-11*700} }{10000^{2} }$

= $\frac{4.669*10^{-8} }{1*10^{8} }$

= 4.669 × $10^{-16}$ m/ $s^{2}$

The force of gravity on the satellite is 4.7 × $10^{-16}$ m/ $s^{2}$ .

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4 years ago

(0 10 40 20 30 50 70 80) (90 100 110 120 130 140). Which end of the scale (left or right) has the loudest sounds?

gregori [183]

I think 140 would be the loudest.

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2 years ago

if pes represents the potential energy stored in a spring in kg•m^2/s^2 and x represents the change in the springs length from i

musickatia [10]

Unit for x - the change in the spring length:
x = [ m ]
PE s = 1/2 k x²
[ kg m² / s² ] = 1/2 k * [ m² ] /: m²
k = [ kg / s² ]
Answer: The unit for spring constant k is kg/ s²

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3 years ago

The quickest braking by acceleration is 8.8 m/s set on a car driven at 32m/s to rest. How long did it take the car to brake?

Olin [163]

3.6 I hope this helps

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3 years ago

Why is the pipe that carries the heated glycol from the box to the tank at an angle?

Alik [6]

Answer:

Bok.............................

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3 years ago