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Setler79 [48]
3 years ago
7

What must happen in a chemical reaction?

Physics
1 answer:
bulgar [2K]3 years ago
4 0

The answer is C. Because energy cannot be created or destroyed

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A stone is dropped from the roof of a high building. a second stone is dropped 1.50 s later. how far apart are the stones when t
Aleksandr [31]

2nd stone time = 13.0/9.8 = 1.33 seconds

distance = 0.5*9.8*1.33^2 = 8.67 meters

1st stone time = 1.33+1.5 = 2.83 seconds

distance = 0.5*9.8*2.83^2 = 39.24 meters

39.24-8.67 = 30.57 meters apart

3 0
3 years ago
When Royce was 10 years old, he had a mass of
coldgirl [10]

Answer:

<em>The gravitational force between Royce and Earth would be doubled at 16 years.</em>

Explanation:

<em>"Newton's law of universal gravitation states that gravitation force between two masses is proportional to the magnitude of their masses and inverse-squared of their distance".</em>

Royce Scenario

At the age of 10 Royce's mass = 30kg

At the age of 16 Royce's mass = 60kg

From Newton's law of universal gravitation, an Increase in the mass of a body would amount to a corresponding increase in the gravitational force.

In the case of Royce, the mass double between the age of 10 and 16, so there would be an increase of the gravitation force by double.

6 0
3 years ago
When a machine is used to perform a task, work output is always more than work input. please select the best answer from the cho
Maurinko [17]
Properly input current above 40 voltage or 100 for example elecrical fan machine is used to perform a task, work output is always more than work
5 0
4 years ago
The number ocean waves that pass a buoy in one second is _ of the wave
mr_godi [17]
The number of ocean waves that pass a buoy in one second is the frequency of the <span>wave. The crest of a transverse wave is its highest point. </span>
7 0
3 years ago
Read 2 more answers
An object is moving at a velocity of 23 m/s. It accelerates to a stop over a time of 8.3 s.
Lady bird [3.3K]
Very good question, The answer you might be looking for is 7.467m/s^2.

Have a blessed day God bless.
3 0
3 years ago
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