The force that the lift exerts on the mass is equal to 900,000N.
Why?
We can solve the problem by using the following formula:
We know that:
So, calculating we have:
Hence, we have that the force that the lift exerts on the mass is equal to 900,000N.
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Acceleration = (change in speed) / (time for the change)
Change in speed = (speed at the end) - (speed at the beginning).
Change in speed = (10 m/s) - (zero) = 10 m/s
Time for the change = 3 sec
Acceleration = (10 m/s) / (3 sec)
<em>Acceleration = (3 and 1/3) m/s²</em> or 3.333 m/s²
The electric force is small in comparison because charges are VERY small but the
gravitational force has to do with the mass of the Earth and Moon.
Answer:
51520J
Explanation:
The energy added to the piece of glass is also called heat needed to increase its temperature from 10°C to 50°C and it depends on the mass, specific heat capacity and the change in temperature.
Q=m.c.ΔT
Q=(2kg).(644J/(kg°C)).((50°C)-(10°C))
Q=51520J
Answer:
therefore critical angle c= 69.79°
Explanation:
Canola oil is less dense than water, so it floats over water.
Given
which is higher than that of water
refractive index of water
to calculate critical angle of light going from the oil into water
we know that
now putting values we get
c=
c=69.79°
therefore critical angle c= 69.79°