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valentina_108 [34]
3 years ago
8

Where does the energy that is used to ride a bicycle up a hill come from and how is it classified?

Physics
2 answers:
MariettaO [177]3 years ago
7 0
Well when you eat you get energy and then you use it to ride up the hill sorry I don't know how it is classified
Sindrei [870]3 years ago
5 0
When you are riding a bike you are converting chemical energy produced in your muscles to mechanical energy which is then divided between kinetic energy and frictional losses.
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allsm [11]

Answer:

D) Grounding

Explanation:

The potential difference between cloud and ground leads to ionization of the atmosphere and resulting conduction through the air often to ground (although it can be between clouds at different potentials. I would say grounding, like the spark when you touch a hot battery terminal to ground on a car.

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2 years ago
Reread the introduction section of this activity. Write a brief conclusion for this activity
ki77a [65]

Answer:

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jasenka [17]

Answer: You don't do work.

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3 years ago
A ball is kicked from the top of a building with a velocity of 50 m/s and lands 165 m away from the base of the buildi
solniwko [45]

Answer:

32.3 m/s

Explanation:

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We start by analyzing the horizontal motion. The ball travels horizontally at constant speed of

v_x = 50 m/s

and it covers a distance of

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t=\frac{d}{v_x}=\frac{165}{50}=3.3 s

In order to find the vertical velocity of the ball, we have now to analyze its vertical motion.

The vertical motion is a free-fall motion, so the ball is falling at constant acceleration; therefore we can use the following suvat equation:

v_y = u_y +at

where

v_y is the vertical velocity at time t

u_y=0 is the initial vertical velocity

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Substituting t = 3.3 s (the time of flight), we find the final vertical velocity of the ball:

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3 years ago
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Andrew [12]

Answer:

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