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3 years ago

5

Which answer choice?? I have trouble with this physics concept :/

1 answer:

Zepler [3.9K]3 years ago

8 0

Answer:

Your weight

Explanation:

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the train is travelling at 15 m/s. It accelerates at 3 m/s² for 20 seconds. How far does the train travel in this time?

Anvisha [2.4K]

18meters per 20 seconds so

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3 years ago

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In a certain clock, a pendulum of length L1 has a period T1 = 0.95s. The length of the pendulum

gulaghasi [49]

Answer:

Ratio of length will be $\frac{L_2}{L_1}=1.108$

Explanation:

We have given time period of the pendulum when length is $L_1$ is $T_1=0.95sec$

And when length is $L_2$ time period $T_2=1sec$

We know that time period is given by

$T=2\pi \sqrt{\frac{L}{g}}$

So $0.95=2\pi \sqrt{\frac{L_1}{g}}$ ----eqn 1

And $1=2\pi \sqrt{\frac{L_2}{g}}$ -------eqn 2

Dividing eqn 2 by eqn 1

$\frac{1}{0.95}=\sqrt{\frac{L_2}{L_1}}$

Squaring both side

$\frac{L_2}{L_1}=1.108$

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3 years ago

Is a force that opposes the motion between two objects in contact with each other.

Sergeeva-Olga [200]

Answer: Friction :)

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2 years ago

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What is the work done by the friction when the body slides against a rough horizontal surfaces?

katovenus [111]

Negative work

Hope this helps :)

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2 years ago

A stone is thrown vertically upwards with an initial velocity 20m/s. Find the maximum height it reaches and the time taken by it

Colt1911 [192]

Answer:

20metere

Y=VOYYT-1/2gt^2
H=20m/s*2s-1/2*10m/s^2(2s)^
H=40m-1/2*10 4s^2
40m-20
H=20m

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2 years ago