Answer:
Part a)
Part b)
Explanation:
Part a)
Change in potential energy of a charge is given as
here we know that
for proton
also we have
now we have
Part b)
Change in potential energy of a charge is given as
here we know that
for proton
also we have
now we have
The story sure is exciting. But when you're ready to work on answering the question, you can ignore everything before the assumptions.
-- When the pilot hit the snow, he was allegedly falling at 50 m/s.
-- His mass is 85 kg.
-- So his kinetic energy was (1/2) (mass) (speed squared) =
(1/2) (85) (50)² = <em>106,250 joules</em>
-- That's the energy that something else has to absorb in order to
reduce his speed to zero.
-- How far he fell, or what size crater he made in the snow, are irrelevant.
Boss tweed encourage his associates to work like a well oiled machine
thus providing his workers with benefits that encourages them to work like a
well oiled machine. A well oiled machine means that it does not stop, its work
is continuous and efficient.
Answer:
The angle is 2.33°.
Explanation:
Given that,
Speed of ball = 12 m/s
Acceleration = 0.4 m/s²
We need to calculate the time
Using formula of time of flight
Put the value into the formula
We need to calculate the angle
Using equation of motion along vertical direction
Put the value in the equation
Hence, The angle is 2.33°.
Answer:
The radius r of the metal sphere
Explanation:
Electric field, where Q is the magnitude of the charge, R is the distance from the center of the metal sphere. Whenever the sign of the charge changes, the direction of electric field also changes. Therefore, it's only the the radius r of the metal sphere does not affect the electric field at a distance R from the center of the metal sphere when R>r