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3 years ago

An energy transformation flow diagram is shown.

Physics

1 answer:

Elza [17]3 years ago

3 0

C is the answer Because chemical energy Create heat And thermal power relates to heat energy

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A young owl forgets how to fly for a moment and is free falling towards the ground. Before crashing, he remembers how to fly and

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did you figure it out

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4 years ago

Read 2 more answers

A football quarterback runs 15.0 m straight down the playing field in 3.00 s. He is then hit and pushed 3.00 m straight backward

algol [13]

Answer:

a) $v_{1}=14.29m/s\\v_{2}=9.25m/s\\v_{3}=6.36m/s$

b) $v=+9.97m/s$

Explanation:

From the exercise we know that

$x_{1} =15m, t_{1}=3s$

$x_{2} =-3m, t_{1}=1.74s$

$x_{3} =29m, t_{3}=5.20s$

From dynamics we know that the formula for average velocity is:

$v=\frac{x_{2}-x_{1} }{t_{2}-x_{1} }$

a) For the three intervals:

$v_{1}=\frac{x_{2}-x_{1} }{t_{2}-t_{1} }=\frac{(-3-15)m}{(1.74-3)s}=14.29m/s$

$v_{2}=\frac{x_{3}-x_{2} }{t_{3}-t_{2} }=\frac{(29-(-3))m}{(5.20-1.74)s}=9.25m/s$

$v_{3}=\frac{x_{3}-x_{1} }{t_{3}-t_{1} }=\frac{(29-15)m}{(5.20-3)s}=6.36m/s$

b) The average velocity for the entire motion can be calculate by the following formula:

$v=\frac{v_{1}+v_{2}+v_{3} }{n} =\frac{(14.29+9.25+6.36)m/s}{3}=+9.97m/s$

8 0

3 years ago

Which statement correctly describes the amount of force applied by the wall as the student conditions to apply a 250-newton forc

Tatiana [17]

B) The wall pulls with a force of 250 N against the force

Explanation:

We can answer this question by using Newton's third law of motion, which states that:

<em>"When an object A exerts a force (called action) on an object B, then object B exerts an equal and opposite force (called reaction) on object A"</em>

In this situation, the student is applying a force of 250 N on the wall. We can identify this force as the action. Therefore, this means (according to Newton's third law) that the wall will also apply a force (the reaction) of equal magnitude (so, 250 N), in the opposite direction to the original force.

Therefore, the correct statement is

B) The wall pulls with a force of 250 N against the force

Learn more about Newton's third law:

brainly.com/question/11411375

#LearnwithBrainly

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3 years ago

An ion of an element has 42 protons 44 neutrons and 43 electrons. What is it’s charge and how did you make that determination?

faust18 [17]

Charge = 66 wats which you can determine by measuring the electrons and neutrons by dividing.

5 0

3 years ago