The force of gravity decreases at a constant rate as we move away from a planet like Jupiter. True or false

Answers

Answer 1

Answer: True because when going to Earth from a planet let's say, gravity increase and farther from Earth gravity decreases because the closer you get to the core of Earth, the more it increases

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A rock is placed into a graduated cylinder containing 80 mL of water. What is the volume of the rock if the water level rises to the 120 mL mark?

Answers

If a rock is placed into a graduated cylinder containing 80 mL of water. then the volume of the rock would be 40 if the water level rises to the 120 mL mark

What is density?

It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.

the density of the rock = mass of the rock /volume of the rock

As given in the problem A rock is placed into a graduated cylinder containing 80 mL of water.

The volume of the rock =120 milliliter - 80 milliliter

= 40 milliliter

Thus, the volume of the rock would be 40 milliliters.

To learn more about density from here, refer to the link;

brainly.com/question/15164682

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Ok so the expression that you will be doing is water-water+object. The actual expression is 120-80. The answer would be 40mL. Remember, don't forget your units! :)

A 5 kg sledge hammer is held over head (2 meters above the ground). What is the maximum amount of work it can do if it falls to the ground?

Answers

The maximum amount of work that the hammer can do while falling to the ground is equal to its variation of gravitational potential energy, which is given by:
$\Delta U = mg\Delta h$
where m is the mass of the hammer, g is the gravitational acceleration, h is the variation in altitude of the hammer.

Plugging the data of the problem inside the equation, we find
$W=mg\Delta h=(5 kg)(9.81 m/s^2)(2 m)=98.1 J$

17. Which of the following is the closest weight in newtons of a 7.0-kilogrambowling ball? *
A. 7.0 newtons
B. 70 newtons
C. 700 newtons
d. 7000 newtons