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Gwar [14]
3 years ago
13

As light travels from air to water to glass, it will refract. The best explanation for this would be

Physics
2 answers:
Lelu [443]3 years ago
8 0
D) The speed of a wave slows as it travels at different speed in different media.
ANTONII [103]3 years ago
7 0
It is d itook the test

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Pleaseee help as soon as possible!!
Tatiana [17]

Answer:

its right 2000 meters ask your teacher

Explanation:

5 0
3 years ago
A bird flew 100 meters in 2 minutes. What was the birds speed ? (show all your work below)
Reika [66]

Answer:

50 meters a minute.

Explanation:

speed = distance / time

So we do 100 / 2 = 50.

3 0
4 years ago
Read 2 more answers
How much force (in Newtons) is needed to accelerate a 160 kg object at a rate of 4 m/s2?
Klio2033 [76]

Answer:

C. 640

Explanation:

The minimum force would occur in a frictionless environment and act parallel to any abutting surface.

F = ma = 160(4) = 640 N

3 0
2 years ago
A spring required a force of 5.0 n to compress it 0.1 m. how much work is required to stretch the spring 0.4 m
lions [1.4K]

Answer:

20N

Explanation:

The force (Hooke's Law) is proportional to the deformation. To extend the spring 4 times longer, you will need 4 times the force. In total, 20 N

5 0
4 years ago
Read 2 more answers
An engine performs 2700 J of work on a scooter. The scooter and rider have a combined mass of 150 kg. If the scooter started at
Finger [1]
Due to the principle of conservation of energy, the work done by the engine to move the scooter converts into kinetic energy of the scooter:
W=K= \frac{1}{2} M v^2
where M is the combined mass of scooter and rider, and v is the velocity of the scooter. Therefore, we can find the velocity as:
v=  \sqrt{ \frac{2W}{M} } =  \sqrt{ \frac{2\cdot 2700 J}{150 Kg} }=6 m/s
6 0
4 years ago
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