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Charra [1.4K]
2 years ago
12

(c) What would the angle of reflection be if the incident ray

Physics
1 answer:
kvasek [131]2 years ago
3 0

Answer:

So, if a wave hits a mirror at an angle of 36°, it will be reflected at the same angle (36°). ... An incident ray of light hits a plane mirror at an angle and is reflected back off it. The angle of reflection is equal to the angle of incidence. Both angles are measured from the normal.

Explanation:

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Which statement about an atom is correct?(1 point)
alexdok [17]

Answer:

The electron has a negative charge and is found outside of the nucleus.

Explanation:

1.) Neutrons have no charge, not a negative charge.

2.) Neutrons are found inside the nucleus, not outside.

3.) Protons have a positive charge.

5 0
3 years ago
Read 2 more answers
An object speed is 7.2 m/s and its momentum is 360 kg m/s what is mass of object
MAXImum [283]
Momentum = mass × velocity
360 = mass × 7.2
mass = 360/7.2 = 50 kg

Hope it helped!!
8 0
3 years ago
The theory that the Earth's crust and part of the upper mantle are broken into sections that move on a fluid layer of the mantle
VMariaS [17]
I most sure about c but could be wrong
6 0
3 years ago
What is the mass of a stone moving at a speed of 15 meters/second and having a momentum of 7.5 kilogram - meters / seconds
Elanso [62]

Answer:

0.5 kg

Explanation:

The momentum of an object is defined as

p = mv

where

m is the mass

v is the velocity

In this problem we have,

v = 15 m/s is the velocity of the stone

p = 7.5 kg m/s is the momentum

Solving for m, we can find the mass of the stone:

m=\frac{p}{v}=\frac{7.5 kg m/s}{15 m/s}=0.5 kg

4 0
3 years ago
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Three kids are riding on a snow sled traveling horizontally without friction at 19.8 m/s. The masses of Kid A, B, and C are 42.8
Kamila [148]

Answer:

34.6 m/s

Explanation:

From conservation of momentum, the sum of initial and final momentum are equal. Momentum is a product of mass and velocity. Initial mass will be 42.8+31.5+25.9=100.2 kg

Final mass will be 31.5+25.9=57.4 kg

From formula of momentum

M1v1=m2v2

Making v2 the subject of the formula then

V2=\frac {M1v1}{m2}

Substitute 100.2 kg for M1, 19.8 m/s fkr v1 and 57.4 kg for m2 then

V2=\frac {100.2 kg\times 19.8 m/s}{57.4 kg}=34.56376 m/s\approx 34.6 m/s

4 0
3 years ago
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