3 years ago

The law of reflection states that the angle of reflection is equal to the angle of

Physics

1 answer:

Natali [406]3 years ago

3 0

The law of reflection states that the angle of reflection is equal to the angle of Incidence .

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Substances have more kinetic energy in the ______ state than in the ______ state.

USPshnik [31]

Liquids state than in the solid state because when it is solid the particals cant move as much than in the liquid state

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3 years ago

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Suppose A=BnCm, where A has dimensions LT, B has dimensions L2T-1, and C has dimensions LT2. Then the exponents n and m have the

julsineya [31]

Explanation:

The expression is :

$A=B^nC^m$

A =[LT], B=[L²T⁻¹], C=[LT²]

Using dimensional of A, B and C in above formula. So,

$A=B^nC^m\\\\\ [LT]=[L^2T^{-1}]^n[LT^2}]^m\\\\\ [LT]=L^{2n}T^{-n}L^mT^{2m}\\\\\ [LT]=L^{2n+m}T^{2m-n}$

Comparing the powers both sides,

2n+m=1 ...(1)

2m-n=1 ...(2)

Now, solving equation (1) and (2) we get :

$n=\dfrac{1}{5}\\\\m=\dfrac{3}{5}$

Hence, the correct option is (E).

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3 years ago

Which of the following could be a step in a plan designed to mitigate the negative impacts of a natural hazard? I. design new te

erastova [34]

Designing warning and evacuation systems could be a step in a plan designed to mitigate the negative impacts of a natural hazard.

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3 years ago

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As water vapor rises into the sky it gets cold. As the water cools, water vapor is transformed into liquid water. When water cha

Aleks [24]

Answer:

2: Condensation. 4: 1,d; 2,c; 3,a; 4,e;5,b.

Explanation:

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3 years ago

what is the net force of a 6 kg object that goes from a velocity of 0.5 m/s to a velocity of 3 m/s over the course of 1.5 second

baherus [9]

Answer:

∑F = 10.2 N

Explanation:

We have:

Initial velocity: 0.5 m/s

Final velocity: 3 m/s

Time: 1.5 s

We have all of the components needed to calculate acceleration. Let's do that, shall we?

a = vf-vo/t

a = 2.5/1.5

a = 1.7 $m$ / $s^{2}$

Now, look at the Net Force equation:

∑F = ma

Plug in the variables, to get:

∑F = (6)(1.7)

∑F = 10.2 N (You can round this according to significant digits)

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3 years ago