3 years ago

Why is Speed and Kinetic Energy related ?

Physics

1 answer:

LenaWriter [7]3 years ago

8 0

Answer:

Speed affects the amount of kinetic energy an object has

Explanation:

Kinetic energy is the energy of motion therefore, it can be affected by speed

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What is the velocity of a wave with a frequency of 6 Hz and a wavelength of 2m?

astraxan [27]

Frequency multiplied by the wavelength
6*2 = 12

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3 years ago

Which of the following Illustrates 2 resistors in a series circult? A, B, C, D.

Kaylis [27]

Answer:

It's either B or D, I'm not positive which it is

Explanation:

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2 years ago

A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 965 N and 15

Alex777 [14]

Answer:(a)2631.46 N

(b)1605.51 N

Explanation:

Assuming there is a cable between crate and worker

Given

weight of worker $W_w=965 N$

Weight of crate $W_c=1510 N$

mass of worker $m_w=\frac{965}{g}=98.46 kg$

mass of crate $m_c=\frac{1510}{g}=154.08 kg$

acceleration of system $a=0.620 m/s^2$

Tension in the wire carrying Worker

$T-(m_w+m_c)g=(m_w+m_c)a$

$T=(m_w+m_c)(g+a)$

$T=(252.54)(9.8+0.62)$

$T=2631.46 N$

(b)Tension in the string above

$T_2-m_c\cdot=m_ca$

$T_2=m_c(g+a)$

$T_2=154.08(9.8+0.62)$

$T_2=1605.51 N$

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3 years ago

I need help, I’m completely lost.

just olya [345]

9050*40:1000=3620 kilometers

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3 years ago

Which of the following describes the motion or change caused by a transformation from electrical to sound energy? (2 points) a A

hodyreva [135]

Answer:

d.music comes out from a television speaker

Explanation:

because television use electricity (electrical energy) and produce sound (sound energy) that we hear while watching tv

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3 years ago

Read 2 more answers