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Ira Lisetskai [31]

3 years ago

5

Block A has mass 1.00 kg and block B has mass 3.00 kg. The blocks collide and stick together on a level, frictionless surface. A

fter the collision, the kinetic energy (KE) of block A is

1 answer:

Pani-rosa [81]3 years ago

5 0

Answer:

1/2mv²=0

1/2(4kg)(v²)=0

2=-v²

square root -2=v

v=1.414

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75kg man climbs a mountain 1000m high in 3hrs and uses 4100 joulse/min. (a) calculate the power consumption in watt, (b) what is

mr Goodwill [35]

Answer:

Explanation:

a) Power consumption is 4100 J/min / 60 s/min = 68.3 W(atts)

work done raised the potential energy

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Not a very likely scenario.

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3 years ago

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3 years ago

A uniform film of a material that has index of refraction 1.30 covers the front surface of a pane made of glass with index of re

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Answer:

The energy of each photon in the light beam is $1.73\times10^{-18}\ J$ .

Explanation:

Given that,

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We need to calculate the energy of each photon in the light beam

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$E=\dfrac{6.63\times10^{-34}\times3\times10^{8}}{115\times10^{-9}}$

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4 years ago

A car is moving at 20 meters per second for 1 minute, how far did the car travel?

lakkis [162]

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3 years ago

Someone please help me

Alexus [3.1K]

Answer:

0 m/s^2

Explanation:

Acceleration is the change in velocity / time

=> In this case there isn't any change in velocity

=> It is = to 0.

7 0

3 years ago