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Neporo4naja [7]
3 years ago
5

What causes air to become less dense and rise?

Physics
1 answer:
aalyn [17]3 years ago
8 0

Answer:

That force is 'gravity'.

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Evaluate the scenarios and select the one that demonstrates the training principle overload.
matrenka [14]

Answer:

B :)

Explanation:

:) JUST TRUST ME I GOT IT CORRECT

5 0
3 years ago
Read 2 more answers
Please help.. urgent Which statement is equivalent to Newton's first law? a. 15,300 N b. 1.20*10^3 N c. 2,030 N d. 1,560 N
taurus [48]
According to Newton laws of motion, 
F = m*a
Here, m = 1,560 Kg
a = 1.30 m/s²

Substitute their values, 
F = 1,560 * 1.30
F = 2028 N ~ 2030 N  [ Closest value ]

In short, Your Answer would be Option C

Hope this helps!
6 0
3 years ago
A pure substance has a/an
Evgesh-ka [11]

Answer:

Element or a compound.

Explanation:

6 0
3 years ago
Two electric motors drive two elevators of equal mass in a three-story building 10 meters tall. Each elevator has a mass of 1,00
algol [13]

Answer:

The power output of the first motor is,  P = 2.0 x 10⁴ watts

Explanation:

Given data,

The height of the building, h = 10 m

The mass of the elevator, m = 1000 kg

The time duration of the motor to do this work, t = 5.0 s

The force acting on the elevator,

                                  F = m x g

                                    = 1000 x 9.8

                                     = 9800 N

The work done by the elevator,

                                W = F  x h

                                     = 9800 x 10

                                     = 98000 J

The power output of the first motor,

                                P = W / t

                                   = 98000 / 5

                                   = 19600 watts

                                   = 1.96 x 10⁴ watts

Hence, the power output of the first motor is, P = 2.0 x 10⁴ watts

3 0
3 years ago
4. What is the instantaneous acceleration at t= 10 s?
vodka [1.7K]

Answer:

I am fairly certain the answer is 2m/s^2

Explanation:

6 0
2 years ago
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