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notsponge [240]
3 years ago
9

The screw compressor is used primarily in ____. A. large industrial refrigeration and air-conditioning systems B. residential ai

r conditioning C. small commercial refrigeration units D. domestic refrigerators
Physics
1 answer:
Rainbow [258]3 years ago
3 0

Answer:

A. large industrial refrigeration and air-conditioning systems

Explanation:

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Suppose the gravitational force between two spheres is 30 N. If the magnitude of both masses doubles, and the distance between t
mixer [17]

Answer:

60 N

Explanation:

because when we double the 30N, we will get 60N as a force

8 0
3 years ago
A baseball is thrown vertically into the air with a speed of 24.7 m/s.
zmey [24]

Answer:

57.7

Explanation:

3.14 × 23 + - 78 = 57.7

7 0
3 years ago
What is the minimum energy required to lift an object weighing 200 Newtons at a height of 20 meters?
lakkis [162]
Work = force x distance

200 Newtons x 20 meters

= 4,000 Joules
4 0
3 years ago
Help please :pensive:
tino4ka555 [31]

Answer:

0m/s²

Explanation:

Given parameters:

Initial velocity of the boat = 8m/s

Final velocity  = 8m/s

Time taken  = 4s

Unknown:

Acceleration of the boat = ?

Solution:

Acceleration is the rate of change of velocity with time.

It is mathematically expressed as;

        A = \frac{v - u}{t}

A is the acceleration

v is the final velocity

u is the initial velocity

t is the time taken

    Insert the parameters and solve;

  A = \frac{8-8}{4}   = 0m/s²

6 0
3 years ago
How to calculate the number of protons and neutrons in elements
Nuetrik [128]
The atomic number is the number of protons. So, you can subtract the atomic number from the mass number to find the number of neutrons.
I hope this helps! :)
8 0
3 years ago
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