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lara31 [8.8K]
3 years ago
12

A scientist studies how sunlight affects a person's skin. Which statement is a

Physics
1 answer:
zhannawk [14.2K]3 years ago
3 0

Answer:

If you spend more time in the sun, your skin will become drier.

a p e x

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What is the correct formula for of the weight w of an object? assume that its mass is m, the magnitude of its acceleration is a,
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Weight = Mass × Acceleration
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An object starts from rest, and accelerates at 2m/s2 for 10s. How far has it gone in that time
blagie [28]

Answer:

100m

Explanation:

s = ut +  \frac{1}{2} a {t}^{2}

u=0;t=10sec;a=2m/s²

s = 0(10) +  \frac{1}{2}(2 \times  {10}^{2} )

s=10²;100m

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4 years ago
The velocity time graph of a car shown below a) Calculate the magnitude of displacement of the car in 40 seconds. b) During whic
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Answer:

a) 0 metres

b) From time 0 s to 10 s , the car was accelerated. Its velocity accelerated from 0m/s to 20 m/s

c) 20 m/s

Explanation:

a) <em>Formula of displacement= velocity x time</em>

time=40 s

velocity =0 m/s

∴ displacement= 0 x 40 = 0 m

Magnitude of displacement is 0 m

b) The increase in velocity shows that there has been acceleration.

c) The average velocity of the car is =\frac{0+40}{2\\}   {initial velocity + final velocity}

                                                            =\frac{40}{2}

                                                             =20

Therefore, the magnitude of the average velocity  of the car is 20 m/s

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3 years ago
The work that a force does by acting on an object is equal to what?
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2nd and only 2nd option is right
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3 years ago
Properties of most medals include
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Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Other properties include: State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days).

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2 years ago
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