3 years ago

Determine the gain in gravitational potential energy when a 4.00 kg rock is raised 18.000 m.

Physics

1 answer:

DaniilM [7]3 years ago

5 0

You can download answer here

tinyurl.com/wpazsebu

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1.In choosing a new machine, your boss wants you to be as cost-efficient as possible, but she also wants the best efficiency. Co

alexira [117]

Answer:

This $4,750 machine is supplied energy at a rate of 1950 W and does useful work at a rate of 1833 W. OPTION 3.

Explanation:

it has the highest power output

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4 years ago

during one hour trip a small boat travels 8.0 km north and then travels 60.0 km east what is the boat's displacement for the one

ki77a [65]

Answer:

60.53km

Explanation:

Check attachment

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3 years ago

If 0.45 moles of potassium chloride are consumed completely and we start with twice as much silver fluoride, how many moles of s

yanalaym [24]

I think that should be D. because is will produced the silver chloride

6 0

3 years ago

Read 2 more answers

You pushes a 25kg box with 40 N of force, but the friction on the crate is 15 N. What is the net

grandymaker [24]

Answer:

25 N in the direction of your push

Explanation:

The friction force acts against your pushing force....it reduces the net amount of force you are exerting

Net force = 40 - 15 = 25 N

4 0

2 years ago

A remote controlled airplane moves 7.2 m in 2.5seconds what is the plane’s velocity

Vsevolod [243]

Answer:

2.88m/s

Explanation:

Given parameters:

Displacement = 7.2m

Time taken = 2.5s

Unknown:

Velocity of the plane = ?

Solution:

Velocity is the displacement divided by the time taken.

Velocity = $\frac{displacement}{time taken}$

So;

Velocity = $\frac{7.2}{2.5}$ = 2.88m/s

4 0

3 years ago