3 years ago

How far will a beam of laser light travel in 70.4 nanoseconds?

Physics

1 answer:

Yuki888 [10]3 years ago

7 0

Answer:

62 nanoseconds

Explanation:

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4 years ago

A baseball approaches home plate at a speed of 44.0 m/s, moving horizontally just before being hit by a bat. The batter hits a p

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Explanation:

It is given that,

Speed of the baseball, u = 44 m/s

Speed of the baseball, v = 53 m/s

Mass of the ball, m = 145 g = 0.145 kg

Time of contact between the ball and the bat, t = 2.2 ms = 0.0022 s

$F=ma$

$F=\dfrac{mv}{t}$

$F_1=\dfrac{0.145\ kg\times 44\ m/s}{0.0022\ s}$

F₁ = 2900 N...........(1)

$F=ma$

$F=\dfrac{mv}{t}$

$F_2=\dfrac{0.145\ kg\times 53\ m/s}{0.0022\ s}$

F₂ = 3493.18 N.........(2)

In average vector form force is given by :

$F=F_1+F_2$

$F=(2900i+(-3493.18)\ N$

$F=(2900i-3493.18j)\ N$

Hence, this is the required solution.

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4 years ago

Graphs help you see..

Diano4ka-milaya [45]

I think it's B because when you graph you do see the relationship between the dependent and independent variable

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3 years ago

Specific heat is the amount of heat required to raise the temperature of a material by 1°C per what unit?

nydimaria [60]

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or C. Mass if you're on plato

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The horizontal velocity was constant, so:

$s = vt$

$s = 10\cdot9$

$s = 90$

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3 years ago