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3 years ago

Which statement correctly describes gravity?

Physics

2 answers:

aalyn [17]3 years ago

8 0

Answer:

an attractive force that acts between all objects without contact

Bess [88]3 years ago

3 0

The second one is best. Gravity is an attractive force that acts between all objects, whether they're in contact or not.

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Water that is moving across Earth’s surface is called

Vanyuwa [196]

Answer:

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3 years ago

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Quick puzzle question. If god created the universe who created god?

mrs_skeptik [129]

Answer:

My mom always told me he was just there

Explanation:

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3 years ago

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A car and a motorcycle start from rest at the same time on a straight track, but the motorcycle is 25.0 m behind the car. The ca

sergeinik [125]

Answer:

t = 8.45 sec

car distance d = 132.09 m

bike distance d = 157.08 m

Explanation:

GIVEN :

motorcycle is 25 m behind the car , therefore distance need to covered by bike to overtake car is 25+ d, when car reache distance d at time t

for car

by equation of motion

$d = ut + \frac{1}{2}at^2$

u = 0 starting from rest

$d = \frac{1}{2}at^2$

$t^2 = \frac{2d}{a}$

for bike

$d+25 = 0 + \frac{1}{2}*4.40t^2$

$t^2= \frac{d+25}{2.20}$

equating time of both

$\frac{2d}{a} = \frac{d+25}{2.20}$

solving for d we get

d = 132 m

therefore t is $= \sqrt{\frac{2d}{a}}$

$t = \sqrt{\frac{2*132}{3.70}}$

t = 8.45 sec

each travelled in time 8.45 sec as

for car

$d = \frac{1}{2}*3.70 *8.45^2$

d = 132.09 m

fro bike

$d = \frac{1}{2}*4.40 *8.45^2$

d = 157.08 m

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3 years ago

How can you increase the potential energy of a bouncing ball

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Answer:

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Explanation:thats should be the way^^ in explaining

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3 years ago

Need help please this is physics work

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Answer:

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2 years ago