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2 years ago

A skater starts skating from rest and speeds up to 6m/s^2 in 12 seconds. What is the acceleration of the skater?

Physics

2 answers:

gogolik [260]2 years ago

5 0

Answer:

$0.5 m/s^2$

Explanation:

The acceleration of an object is given by the equation

$a=\frac{v-u}{t}$

where

v is the final velocity of the object

u is the initial velocity

t is the time taken for the velocity to change from u to v

For the skater in this problem we have:

u = 0 (assuming it starts from rest)

v = 6 m/s is the final velocity of the skater

t = 12 s is the time taken

Substituting, we find

$a=\frac{6-0}{12}=0.5 m/s^2$

Thepotemich [5.8K]2 years ago

3 0

Answer:

2m/s^2

Explanation:

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Answer:

Explanation:

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For more detail, the difference between E1 and E2 is 7812 J, and that will melt

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2 years ago

A thin, horizontal, 18-cm-diameter copper plate is charged to -3.8 nC. Assume that the electrons are uniformly distributed on th

son4ous [18]

Answer:

Part a)

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Part b)

$E = 8436.7 N/C$

Explanation:

Part a)

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$\sigma = \frac{Q}{A}$

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Part b)

Now since the electric field is required at same distance on other side

so the field will remain same on other side of the plate

$E = 8436.7 N/C$

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2 years ago

A lightning bolt transfers 6.0 coulombs of charge from a cloud to the ground in 2.0 x 10-3 second. what is the average current d

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2 years ago

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2 years ago

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A wave travels through a medium at 251 m/s and has a wavelength of 5.10 cm. What is its frequency? What is its angular frequency

allochka39001 [22]

Explanation:

It is given that,

Speed of a wave, v = 251 m/s

Wavelength of the wave, λ = 5.1 cm = 0.051 m

(1) The frequency of the wave is given by :

$\nu=\dfrac{v}{\lambda}$