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3 years ago

If you sit on a skateboard and push against a brick wall, what would happen? Why do you think this?

Physics

1 answer:

Troyanec [42]3 years ago

7 0

Answer:

well when if you are sitting down and then push off of the brick wall you will be backwards so you can't see anything so you might hit someone or something so you would have to be careful

Explanation:

the reason why i think this is because i have a brother who skateboard and he wants to help me get better and when we are just playing we sit down on the skateboard and push off things and ran into a pole because i was backwards and wasn't paying attention so that's why i think that

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Which Sl units are combined to describe energy?

azamat

Answer:

kilograms and m²/s²

Explanation:

The SI units combined to describe energy is kilograms and m²/s² ;

Energy can be derived from;

Potential energy = mgh

Units = kg x m/s² x m

= kg m²/s²

Even if we use kinetic energy, we still get kg m²/s²

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3 years ago

Place a small object on the number line below at the position marked zero. Draw a circle around the object. Mark the center of t

Murrr4er [49]

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3 years ago

A woman is standing in the ocean, and she notices that after a wave crest passes by, five more crests pass in a time of 50.2 s.

lorasvet [3.4K]

Explanation:

(a) The period of a wave is the time required for one complete cycle. In this case, we have the time of five cycles. So:

$T=\frac{t}{n}\\\\T=\frac{50.2s}{5}\\T=10.04s$

(b) The frequency of a wave is inversely proportional to its period:

$f=\frac{1}{T}\\f=\frac{1}{10.04s}\\f=0.01Hz$

(c) The wavelength is the distance between two successive crests, so:

$\lambda=30.2m$

(d) The speed of a wave is defined as:

$v=f\lambda\\v=(0.1Hz)(30.2m)\\v=3.02\frac{m}{s}$

8 0

3 years ago

Which part of the electromagnetic spectrum has a lower frequency than visible light?

miv72 [106K]

Answer:

infrared

Explanation:

Electromagnetic spectrum w.r.t. increasing frequency is

Radio waves

Microwaves

Infra red

visible

ultra violet

x rays

gamma rays

3 0

3 years ago

What is a volt as applied in physics

Alexus [3.1K]

Answer:

The answer is below

Explanation:

Volt in physics is a term that is used to describe the unit of both electrical potential difference and electromotive force. In other words, it is a unit of measuring the voltage between two points. It is represented as "V".

The formula for Voltage is V=IR

Where V= Voltage, I = Current and R = Resistance.

8 0

3 years ago