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Wittaler [7]
3 years ago
10

All objects emit electromagnetic radiation as a result of _____.

Physics
1 answer:
Artist 52 [7]3 years ago
8 0

One

All objects, every one, as long as the object is not at absolute zero (not very many objects are -- like no common object) emit electromagnetic radiation because they possess thermal (heat) energy.

The answer, surprisingly, is A.

Two

This is just an example of Snells law. The angles are with the normal.

Index of Refraction = sin(input angle) / sin(outgoing angle)

Index of Refraction = sin(angle incidence)/sin(angle of refraction)

Index of Refraction = Sin (36)/Sin(27.5)

Index = 1.28 (rounded)

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Answer:False.

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Have a Nice Day!!! =)

5 0
3 years ago
Read 2 more answers
The physical quantity represented as rate of change of change in position in a
Oduvanchick [21]

Answer:

B

rate of change of its position with respect to a frame of reference, and is a function of time.

3 0
3 years ago
PLEASE HELP - basic SUVAT stuff
Goryan [66]

Answer:

1. 5 m/s

2. 8 m/s

3. 10 s

4. 3 m/s

Explanation:

1. Average speed = distance / time

s = 20 m / 4 s

s = 5 m/s

2. First, find the time to travel from A to B:

60 m = 10 m/s × t

t = 6 s

Now find the average speed from A to C:

s = 80 m / (6 s + 4 s)

s = 8 m/s

3. If t is the time traveling from C back to B, and the average speed of the whole trip is 5 m/s, then:

5 m/s = 100 m / (6 s + 4 s + t)

t = 10 s

4. Average velocity = displacement / time

v = 60 m / 20 s

v = 3 m/s

6 0
3 years ago
An apple from the top branch of the tree and an apple from the bottom branch of a tree fall at the same time. Which apple will h
Vedmedyk [2.9K]
B. The apple from the bottom will hit the ground earlier. This is because an increase in height causes an increase in the time that the object will fall, and therefore will affect the final velocity of the falling object. Moreover, the reduction in velocity due to friction from the air should also be considered.
3 0
3 years ago
A plate falls vertically to the floor and breaks up into three pieces, which slide along the floor. immediately after the impact
pshichka [43]
Refer to the diagram shown below.

Define the (x,y) plane as the horizontal plane of the floor.
There was no momentum in the (x,y) plane before the plate hit the floor.

Let the velocity components in the (x) and (y) directions of the 100 g mass be Vx and Vy respectively, and that the resultant velocity, V, makes an angle θ below the negative x-axis as shown.

Because momentum is conserved, therefore
100*Vx + 320*2 = 0
100Vx = -640
Vx = -6.4 m/s

100Vy + 355*1.5 = 0
100Vy = -532.5
Vy = -5.325 m/s

V = √[(-6.4)² + (-5.325)²] = 8.33 m/s
θ = tan⁻¹ (-5.325/-6.4) = 39.8°

Answer:
The direction is 39.8° below the negative x-axis
The speed is 8.33 m/s


8 0
3 years ago
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