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denis-greek [22]
3 years ago
10

When the rate of motion is the same direction the speed will decrease. True False

Physics
1 answer:
slega [8]3 years ago
6 0
A)true is the answer
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Which occurrence demonstrates dispersion?
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A rainbow. Dispersion is the splitting of radiation into it's different wavelengths.
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A mass is attached to the end of a spring and set into oscillation on a horizontal frictionless surface by releasing it from a c
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given,

x = (3.9 cm)sin[(9.3 rad/s)πt]

general equation of displacement

x = A sin ω t

A is amplitude

now on comparing

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b) period of motion

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d) time when displacement is equal to x= 2.6 cm

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9.3 π t = 0.73

t = 0.025 s

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What is the acceleration of the object at t = 4s?
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Calculate the time of fight for a horizontally launched projectile from a height of 20m above the ground with an initial velocit
Hoochie [10]

Answer:

0.5sec

Explanation:

Parameters

Height(H) =20m

Initial velocity(u) = 5m/s

Acceleration due to gravity(g) =10m/s^2

Method one

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H=ut-1/2gt^2

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5-10t=0

Collect like terms

-10t= -5

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2nd method

Parameters

Height(H) =20m

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Acceleration due to gravity(g) =10m/s^2

Using the time taken formula

t=u/g

t=5/10

t=0.5sec

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Mirror neurons may assist in making observational learning possible.
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