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yKpoI14uk [10]
3 years ago
13

The force that gravity exerts on an object is called _____. weight volume density mass

Physics
2 answers:
uysha [10]3 years ago
8 0

Answer:

Weight

Explanation:

tensa zangetsu [6.8K]3 years ago
3 0

Answer: The correct answer is "weight".

Explanation:

The expression for the weight is as follows;

w= mg

Here, m is the mass of the object, g is the acceleration due to gravity and w is the weight.

Weight: It is the force which is exerted by the gravity on an object. It varies place to place.

The weight of the object depends on mass and acceleration due to gravity.

The weight of the object on the moon is one sixth of the weight of the object on the earth whereas the mass of the object remains constant.

Density is defined as the mass per unit volume.

Therefore, the force that gravity exerts on an object is called weight.

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At the equator earth rotates with a velocity of about 465 m/s.
Dafna1 [17]
The given velocity is 465 m/s.

Part a.
465 \,  \frac{m}{s} =(465 \times 10^{-3} \,  \frac{km}{s})*( 3600 \,  \frac{s}{h} ) = 1674 \,  \frac{km}{h}
Answer: 1674 km/h

Part b.
1674  \frac{km}{h} = (1674 \,  \frac{km}{h})*(24 \,  \frac{h}{day}  ) = 40176 \,  \frac{km}{day}
Answer: 40,176 km/day.

 
3 0
3 years ago
Read 2 more answers
A subway train accelerates from rest at one station at a rate of 1.30 m/s^2 for half of the distance to the next station, then d
Minchanka [31]

This problems a perfect application for this acceleration formula:

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During the speeding-up half:     1,600 meters = (1/2) (1.3 m/s²) T²
During the slowing-down half:    1,600 meters = (1/2) (1.3 m/s²) T²

Pick either half, and divide each side by  0.65 m/s²: 

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                         T = square root of (1600 / 0.65) seconds

Time for the total trip between the stations is double that time.

                         T =  2 √(1600/0.65) = <em>99.2 seconds</em>  (rounded)


7 0
3 years ago
What does a trench form?What happens here?
Vinvika [58]
A hole, and people die if they fall in there.
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3 years ago
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smartphones break due to forces acting on the material.

force causes material to deform.

material is often brittle and cracks due to a limit on hardness / electricity in screens.

newton's 2nd law states

force = DV / DT

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thus we must use some form of damping in the form of a case .

the case is typically able to deform and rubber is elastic converting the kinetic energy to heat as it deforms instead of transferring it through the screen.

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Anika [276]

Answer:

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