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3 years ago

1. An MR-2 starts from rest and accelerates westward to a speed of 27 m/s in

Physics

1 answer:

dangina [55]3 years ago

8 0

Answer:

a) 2.28 m/s²

b) 159.86 m

Explanation:

Part A:

u = 0 m/s

v = 27 m/s

t = 11.8 seconds

a = ?

Formula:

v = u + at

=> 27 = 0 + a(11.8)

=> 27 = a(11.8)

=> a(11.8) = 27

=> a = 27/11.8

=> a = 2.28 m/s²

Part B:

s = ?

Formula:

s = (v² - u²)/2a

s = (27² - 0²) /2(2.28)

= 729/4.56

= 159.86 m

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Margarita [4]

Answer:

Explanation:

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3 years ago

What is the intensity of a traveling plane electromagnetic wave?

abruzzese [7]

Your question seems incomplete, however, I might help you solve the problem even though the values are not given. The intensity of a traveling plane electromagnetic wave can be computed using the following equation:

S = (c/u0) * B^2

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3 years ago

Professional baseball pitchers deliver pitches that can reach the blazing speed of 100 mph (miles per hour). A local team has dr

Wittaler [7]

Answer:

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B. ) h= 91.1 m.

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$U_{o} = K_{f} = 126. 7 J (2)$