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Black_prince [1.1K]
3 years ago
10

A cyclist rode an average speed of 10 miles per hour for 15 miles how long was the ride

Physics
1 answer:
Ainat [17]3 years ago
7 0
I think it's an hour and a half
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At t = 0, object A is dropped from the roof of a building. At the same instant, object B is dropped from a window 10 m below the
dsp73

Answer:

Explanation:

Given two objects are dropped simultaneously

Object A is 10 m higher than object B therefore

Distance covered by object A is given by

y_a(t) is given by

y=ut+\frac{1}{2}at^2

where y=displacement

u=initial velocity

a=acceleration

t=time

y_a(t)=0+0.5gt^2--1

for object B

y_b(t)=0+0.5gt^2--2

Subtract 1 and 2 we get

y_a(t)-y_b(t)=0

i.e. they will travel equal distance in equal time and distance between them remain 10 m until object B hits the ground

           

4 0
3 years ago
Why do seat belts help protect passengers when a car stops quickly? Explain your answer in terms of forces and motions.
Mamont248 [21]

Answer:

If the driver is wearing a seat belt, the seat belt rather than the windshield applies the unbalanced force that stops the driver's forward motion. The force from the seat belt is applied over a longer time, so the force causes less damage.

Explanation:

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3 years ago
Which lists types of materials from most conductive to least conductive?
Lilit [14]
Superconductor, conductor, semiconductor, insulator
7 0
3 years ago
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Where does the majority of the mass of an atom come from
asambeis [7]

Answer:

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Explanation:

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5 0
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The frequency of the second harmonic of a certain musical instrument is 100 Hz. What is the fundamental frequency of the instrum
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f = 100 / 2
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3 years ago
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