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2 years ago

It takes a truck 3.56 seconds to slow down from 112 km/h to 87.4 km/h. What is its average acceleration?

Physics

1 answer:

Yuliya22 [10]2 years ago

8 0

Answer:

1.92 m/s2

Explanation:

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Can you hit the monkey at a fast speed with gravity on?

Ierofanga [76]

Answer:

It depends how far the monkey is and how hard you throw the object because If the monkey is close, then you will most likely hit it

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2 years ago

A 26-kg sled is on a snow-covered slope. The coeﬃcients of friction between the sled’s runners and the snow are µs = 0.096 and µ

sweet-ann [11.9K]

Answer:

Explanation:

Given

mass of sled =26 kg

coefficient of static friction $\mu _s=0.096$

coefficient of kinetic friction $\mu _k=0.072$

In order to move sled from rest we need to provide a force greater than static friction which is given by

$f_s=\mu mg=0.096\times 26\times 9.8=24.46 N$

After Moving Sled kinetic friction comes in to play which is less than static friction

$f_k=\mu _kmg=0.072\times 26\times 9.8=18.34 N$

therefore minimum force to keep moving sledge at constant velocity is 18.34 N

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3 years ago

Which best describes the current atomic model?

Lorico [155]

<span>A: It is not an exact representation of the atom, but is close enough to be very useful.

Hope this helps!</span>

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2 years ago

Read 2 more answers

Suppose astronomers find an earthlike planet that is twice the size of Earth (that is, its radius is twice the radius of Earth).

JulijaS [17]

Answer:

4 times the mass of Earth

Explanation:

$M_1$ = Mass of Earth

$M_2$ = Mass of the other planet

r = Radius of Earth

2r = Radius of the other planet

m = Mass of object

The force of gravity on an object on Earth is

$F=\frac{GM_1m}{r^2}$

The force of gravity on an object on the other planet is

$F=\frac{GM_2m}{(2r)^2}$

As the forces are equal

$\frac{GM_1m}{r^2}=\frac{GM_2m}{(2r)^2}\\\Rightarrow M_1=\frac{M_2}{4}\\\Rightarrow M_2=4M_1$

So, the other planet would have 4 times the mass of Earth

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3 years ago

Please give me answer of this question and I will mark you as brainliest

Degger [83]

Answer:

Maharashtra - mashru or himroo / dhoti and lugda

Gujarat - patola / ghagra choli

Punjab - pat / kurta and pajama

Odisha - ikat / Sadi

West Bengal - tossa / kurta

Karnataka - Mysore silk / mundu

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2 years ago