Light waves

Physics

2 answers:

irga5000 [103]2 years ago

7 0

Answer:

Explanation:

Because I searched it up

agasfer [191]2 years ago

3 0

Answer:a

Explanation:

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If mass remains the same while the volume of a substance ________, the density of the substance will_______________. decreases,

gtnhenbr [62]

Density =Mass/volume
When mass is constant, density is inversely proportional to volume or vice versa
When volume decreases, density increases
Hope it helps

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2 years ago

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The approximate mass of a nickel in kilograms is

mart [117]

<span>The nickel has a mass of approximately 0.005kg</span>

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2 years ago

Two particles, one with charge − 7.97 μC −7.97 μC and one with charge 7.75 μC, 7.75 μC, are 8.09 cm 8.09 cm apart. What is the m

mr Goodwill [35]

Answer:

Electric force, F = 84.93 N

Explanation:

Given that,

Charge on particle 1, $q_1=-7.97\ \mu C=-7.97\times 10^{-6}\ C$

Charge on particle 1, $q_2=7.75\ \mu C=7.75\times 10^{-6}\ C$

The distance between charges, d = 8.09 cm

To find,

The magnitude of the force that one particle exerts on the other.

Solution,

The electric force of attraction or repulsion is given by the formula as:

$F=\dfrac{kq_1q_2}{d^2}$

k is the electrostatic constant

$F=\dfrac{9\times 10^9\times 7.97\times 10^{-6}\times 7.75\times 10^{-6}}{(8.09\times 10^{-2})^2}$

F = 84.93 N

So, the magnitude of the force that one particle exerts on the other is 84.93 N.

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2 years ago

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A hot-air balloon of diameter 12 m rises vertically at a constant speed of 11 m/s . A passenger accidentally drops his camera fr

ValentinkaMS [17]

To solve this problem we will apply the linear motion kinematic equations. First we will determine the time it takes for the camera to fall to the floor. Later with that time, we will calculate from the initial position when the balloon ascended.

$h = v_ot-\frac{1}{2}gt^2$