A lens forms images when light passes Through it bending the rays of in the process.A phenomena called refraction and the speed of light changes in the process because it enters a medium since it's wavelength is reduced.

3 0

2 years ago

A train is traveling down a straight track at 20. m/s when the engineer applies the brakes, resulting in an acceleration of -1.0

Kipish [7]

Answer:

The answer to your question is: d = 0 m, it does not move

Explanation:

Data

vo = 20 m/s

a = -1 m/s2

t = 40 s

d = ?

Formula

d = vot + (1/2)at²

Substitution

d = (20)(40) + (1/2)(-1)(40)²

d = 800 - 800

d = 0 m It suggest that it does not move.

I hope it can help you

7 0

3 years ago

Weight is measured with a ___________. Question 4 options: A. Balance B. Scale

kap26 [50]

Answer: B

Explanation: Scale

4 0

4 years ago

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Suppose a 1 Gbps point-to-point link is being set up between the Earth and a new lunar colony. The distance from the moon to Ear

vagabundo [1.1K]

Answer:

The time required to send the data from Earth to Moon will be 1.28s while for a two way communication, to send it back to the earth, it will take double time i.e. RTT = 2.56s

Explanation:

Distance between Earth and Moon = 385,000 km = 3.85 x 10⁸m

Speed of data travel = speed of light ≈ 3 x 10⁸m/s

As, v=d/t

t=d/v

$t=\frac{3.85*10^{8} }{3*10^{8}}$

t=1.28s

RTT = Double of single way time taken = 2x1.28

RTT=2.56s

7 0

3 years ago