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3 years ago

Gravity, momentum, and friction are examples of:

Physics

2 answers:

belka [17]3 years ago

8 0

The correct answer is they are all examples of VECTOR quantities. They all have a direction related to them.

alex41 [277]3 years ago

4 0

Answer:

Gravity,momentum & friction are examples of FORCE.

Explanation:

Hope this helps you

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A rocket is fired at 100 m/s at an angle of 37, what was its speed at the top of its path?

Nadusha1986 [10]

Answer:

0m/s

Explanation:

Since its fired at an angle, at the top there will be a split second where the velocity will be 0, as it has a parabolic shape, so the speed at the top of its path is 0

4 0

3 years ago

A light wave traveling through medium 1 strikes a boundary with medium 2 at at a 45 degree angle. the light then enters the seco

Alona [7]

Here light ray strikes to interface at an angle of 45 degree and then refracts into other medium such that it will bend towards boundary.

So here the angle of incidence will be less than the angle of refraction as light moves towards the boundary after refraction which mean it will bend away from the normal

here it can be said that medium 2 will be rarer then medium 1

So here the possible options are

1. Water

Air

2. Diamond

Air

So in above two options medium 1 is denser and medium 2 is rarer

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3 years ago

What does the law of conservation of energy state?

pishuonlain [190]

The answer is B. good luck :)

8 0

4 years ago

Read 2 more answers

3. The figure below show a bar of negligible weight pivot at point A attached to the

Mice21 [21]

Hey so the answer is F2=7
W30

8 0

3 years ago

When the tube is filled with mercury vapor, as in this case, a sharp drop in the collected current is observed when the accelera

Phantasy [73]

Answer:

253.54 nm

Explanation:

h = Planck's constant = $6.626\times 10^{-34}\ m^2kg/s$

c = Speed of light = $3\times 10^8\ m/s$

$\lambda$ = Wavelength

V = Voltage = 4.9 V

The loss in kinetic energy = Gain in potential energy (energy conservation)

$E=eV\\\Rightarrow E=1.6\times 10^{-19}\times 4.9\\\Rightarrow E=7.84\times 10^{-19}\ J$

Energy is given by

$E=\dfrac{hc}{\lambda}\\\Rightarrow \lambda=\dfrac{hc}{E}\\\Rightarrow \lambda=\dfrac{6.626\times 10^{-34}\times 3\times 10^{8}}{7.84\times 10^{-19}}\\\Rightarrow \lambda=2.53546\times 10^{-7}=253.54\ nm$

The wavelength is 253.54 nm

8 0

3 years ago