Answer:
a. 2.856 x 10^-6 m³
b. 0.288 J
c. 971.88 J
d. 971.592 J
Explanation:
d) The change in internal energy of the cube.
Note: For Copper -
B(beta)= 5.1 × 10^-3 (C)^-1
Cp = 390J/Kg.K
p (Rho) = 8.90 × 10³Kg/m³
Detailed solution is attached below
Electric field strength near the surface of sphere is given by
Now we have
Q = 1 C
R = 5 cm
now electric field is given by
Part B)
Since charge on the sphere is very large to electric field near its surface is too high. So this is reasonable result near it.
Part c)
As per our assumption the charge is uniformly distributed on the surface and there is no effect of surrounding charge or surrounding electric field.
Answer:
Explanation:
Given
Distance between Pluto and sun is 39.1 times more than the distance between earth and sun
According to Kepler's Law
where k=constant
T=time period
R=Radius of orbit
Suppose is the radius of orbit of earth and sun
so Distance between Pluto and sun is
and is the time period corresponding to and R_2[/tex]
divide 1 and 2
Gravity on Uranus is 86% of Earths.
100 pounds x 86% = 86 pounds
You would weigh 86 pounds.
You haven't specified where the experiment took place. I'm going to
assume that it was somewhere on Earth. That's important.
The acceleration of gravity on or near the surface of the Earth is about 9.8 m/s² .
That means that a falling object falls 9.8 m/s faster every second.
So in 2 seconds of falling, its downward speed increases (2 x 9.8) = 19.6 m/s .
If the stone was falling at the rate of 3.0 m/s when the 2 seconds began,
then its downward speed at the end of the 2 seconds was
(3.0 m/s) + (19.6 m/s) = <em>22.6 m/s</em>