3 years ago

Please help me I am desperate this is due now

Physics

2 answers:

elena55 [62]3 years ago

7 0

Answer:

Distance travelled is 7 meters and the displacement is 3 meters

Monica [59]3 years ago

6 0

Give person above or below brainliest

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How does a rollercoaster convert potential energy into kinetic energy and then back to potential energy again and again?

Vladimir79 [104]

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5 0

3 years ago

HEY PLEASE HELP AM DESPERATE!!!!!!

MariettaO [177]

Answer:

Runner A

Explanation:

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But A runner finished it from 20 seconds

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3 years ago

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The temperature of a sample of silver increased by 24.0 °C when 269 J of heat was applied. What is the mass of the sample?

statuscvo [17]

Answer:

Mass of the silver will be equal to 46.70 gram

Explanation:

We have given heat required to raise the temperature of silver by 24°C is 269 J , so $\Delta T=24^{\circ}C$

Specific heat of silver = 0.240 J/gram°C

We have to find the mass of silver

We know that heat required is given by

$Q=mc\Delta T$ , here m is mass, c is specific heat of silver and $\Delta T$ is rise in temperature

So $269=m\times 0.240\times 24$

m = 46.70 gram

So mass of the silver will be equal to 46.70 gram

3 0

3 years ago

Which direction is the force of friction?

liraira [26]

Friction always acts opposite to the motion.<em> (B)</em>

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3 years ago

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A passenger on a stopped bus notices that rain is falling vertically just outside the window. When the bus moves with constant v

nekit [7.7K]

Answer:

1)0.325

2) $6.17\ \rm m/s$

Explanation:

<u>Given:</u>

The angle that falling raindrops make with the vertical= $18^\circ$

Let $V_R$ be the velocity of the raindrops and $V_B$ be the velocity of the bus.

$\dfrac{V_R}{V_B}=\tan 18^\circ\\\dfrac{V_R}{V_B}=0.315\\$

2)Speed of the raindrops $=0.315\times 19$

$=6.17\ \rm m/s$

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3 years ago