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MAXImum [283]
3 years ago
8

A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Calculate the acceleration of th

e car.
Physics
1 answer:
ankoles [38]3 years ago
3 0

Answer:

10 km/h

Explanation:

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Plz answer this asap first answer gets brainliest and 100 points
Rama09 [41]

The answer is:

C

From the yolk to the white

Explanation:

The core of Earth is the hottest, so that is where the heat comes from. It moves outwards to the mantle.

3 0
4 years ago
Read 2 more answers
is weigh-in time for the local under-85-kg rugby team. The bathroom scale used to assess eligibility can be described by Hooke’s
yulyashka [42]

Answer:

a) 156960 N/m

b) Yes the player can play on the team.

Explanation:

F = Force

a = Acceleration due to gravity = 9.81 m/s²

m = Mass

k = Spring constant

x = Deformation length of spring

F = ma

From Hooke's law

F=kx\\\Rightarrow ma=kx\\\Rightarrow k=\frac{ma}{x}\\\Rightarrow k=\frac{120\times 9.81}{0.0075}\\\Rightarrow k=156960\ N/m

The effective spring constant is 156960 N/m

When x = 0.48 cm = 0.0048 m

m=\frac{kx}{a}\\\Rightarrow m=\frac{156960\times 0.0048}{9.81}\\\Rightarrow m=76.8\ kg

The mass of the player is 76.8 kg which is less than the required mass limit of the players' which is 85 kg. So, the player is eligible to play.

5 0
3 years ago
"Pluto Is Changing" talks about sheets of frozen nitrogen on Pluto. Tell what is happening to these sheets of ice
drek231 [11]
What is Pluto is changing exactly <span />
7 0
4 years ago
Use evidence to explain why glass refracted more light than air or water
agasfer [191]

Explanation:

The refraction is the change in the direction of light while travelling from the one medium to another due to having different speeds in different mediums.

To determine how much light gets refracted, it depends on the density of substance and the wavelength and the angle at which light enters the substance.

Light travels more slowly in denser medium than the rarer medium. The refractive index of glass is more than water or air. Light gets refracted more in this. When the light travels from rarer to denser then the light will get bend towards the normal. When the light travels from denser to rarer then the light will get bend away from the normal.      

Glass is more denser than air or water. Water is more denser than the air. When light travels from air to glass then the light gets bends towards the normal. When the light travels from glass to the air then light gets bends away from the normal.

Therefore, the light gets refracted more in the glass than air to water.

4 0
4 years ago
The kinetic energy of an object can sometimes be greater than a potential energy a originally possessed, true or false?
Mamont248 [21]

Answer:

true

Explanation:

Energy stored in the nuclei of atoms can be used to generate electricity. ... Most of the energy of food is converted to heat.

4 0
3 years ago
Read 2 more answers
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