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Lilit [14]
3 years ago
7

What is it called when velocity changes over time

Physics
2 answers:
Vedmedyk [2.9K]3 years ago
6 0
It's called Acceleration .
natka813 [3]3 years ago
3 0
Well,

When an object's velocity changes, we call it acceleration.

Acceleration: The time rate of change in an object's velocity
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ehidna [41]

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4 0
2 years ago
The temperature of 2.0 g of helium is increased at constant volume by ΔT. What mass of oxygen can have its temperature increased
gavmur [86]

Answer:

m = 9.6 g

Explanation:

Thermal energy given to helium gas at constant volume is given as

Q = nC_v \Delta T

so here we have

C_v = \frac{3}{2}R

n = moles

n = \frac{2}{4} = 0.5

so we have

Q = \frac{3}{2}R(0.5)\Delta T

now we know that

for oxygen gas we have

C_v = \frac{5}{2}R

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Q = nC_v \Delta T'

\frac{3}{2}R(0.5)\Delta T = \frac{m}{32} (\frac{5R}{2}) \Delta T

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3 years ago
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Answer:

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3 years ago
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storchak [24]

Answer:

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3 years ago
A2 kg block is accelerating at the rate of 5 m/s² while being acted on by two forces. One of the forces equals 30 N, 0°. What ar
Mademuasel [1]

Answer:

20 [N], in the opposite direction of the first force.

Explanation:

We know that newton's second law stipulates that the sum of forces on a body must be equal to the product of mass by acceleration.

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The negative sign means that the other force acting on the body must be in the opposite direction to the force of 30 [N]

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3 years ago
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