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ollegr [7]
3 years ago
10

The position-time equation for a certain train is xf=2.8m+(8.1m/s)t+(2.9m/s^2)t^2.

Physics
1 answer:
mash [69]3 years ago
3 0
The formula without numbers is
xf = xi + vxi(t) +  \frac{1}{2} (a) {t}^{2}
do the initial velocity would be
8.1 m/s
and the acceleration would be
2.9 m/s^2
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Intermolecular distance is the distance between the particles that make up matter. The graph below compares the intermolecular d
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Answer:

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Explanation:

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here y has lesser intermolecular distance so it is a liquid

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3 0
3 years ago
As a rough approximation, the human body may be considered to be a cylinder of length L=2.0m and circumference C=0.8m. (To simpl
Brilliant_brown [7]

Answer:

Thermal Power = 460W

Explanation:

From Stephan-Boltzmann Law Formula;

P = єσT⁴A

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P = Radiation energy

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є = Emissivity of the material.

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Normally, we approximate to the nearest 10W. Thus, thermal power is approximately 460W

4 0
3 years ago
a plane passes over Point A with a velocity of 8,000 m/s north. Forty seconds later it passes over Point B with a velocity of 10
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Acceleration = (change in velocity) / (time for the change)

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8 0
2 years ago
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Answer:

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4 0
3 years ago
A man pulls a sled at a constant velocity across a horizontal snow surface. if a force of 80 n is being applied to the sled rope
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A constant velocity implies the two forces must be equal and opposite.
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3 0
3 years ago
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