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elena55 [62]
4 years ago
7

Why does changing the shape of an object have no effect on the density?

Physics
1 answer:
8_murik_8 [283]4 years ago
8 0
Density is (the object's mass) divided by (the object's volume).

Changing the object's shape doesn't change its mass or volume,
so its density doesn't change.
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6. Two light bulbs are designed for use at 120 V and are rated at 75 W and 150 W. Which light bulb has the greater filament resi
Nonamiya [84]

\\ \bull\tt\longrightarrow P=\dfrac{V^2}{R}

  • P is power
  • R is resistance

\\ \bull\tt\longrightarrow R=\dfrac{V^2}{P}

Hence

\\ \bull\tt\longrightarrow R\propto V

\\ \bull\tt\longrightarrow R\propto \dfrac{1}{P}

  • Therefore if power is low then resistance will be high.

The first bulb has less power hence it has greater filament resistance.

5 0
3 years ago
Please help! Question is attached.​
il63 [147K]

Answer:

a. 6

b. 6 m/s²

c. 300 m to the right

d. 30 secs

Explanation:

slope = rise /run

60-0/10-0

= 6

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c. d=ut+1/2at²

t=10 (segment A last for 10 secs)

u - initial velocity = 0

so d = 0(10)+1/2*6*10²

=300 m

6 0
3 years ago
Can someone help me with this free body diagram problem?
zavuch27 [327]
Lol I just finished this
5 0
3 years ago
According to Newton's second law, how are acceleration and mass related? Directly or indirectly when force is constant?
Aliun [14]
Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
4 0
3 years ago
Winds are turned to the left in the Southern Hemisphere.<br><br> true or false
Nutka1998 [239]

Answer:

true

Explanation:

The force, called the "Coriolis effect," causes the direction of winds and ocean currents to be deflected. In the Northern Hemisphere, wind and currents are deflected toward the right, in the Southern Hemisphere they are deflected to the left.

4 0
4 years ago
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