Physically, because of environmental factors such as air, and water. Create corrosion which in turn erode the rock.
Answer:
D) The capacitor will pull the material into the space between the plates, and the potential energy stored between the plates of the capacitor will decrease by a factor of 3
Explanation:
points to note
A) inserting a material with dielectric constant of 3 between the plates means that the capacitance C will increase by 3.
B) Since the battery is disconnected, the potential difference V between plate will not remain constant.
C) increasing the capacitance reduces the potential difference across the plate, and from C = Q/V it can be seen that the charges on the plate remains constant.
From the proof in the image below, the reduction in the potential energy of the capacitor is due to the energy used by the capacitor to pull the dielectric material into the space.
Answer:
Explanation:
The motion of an object in free fall is a uniformly accelerated motion, so we can analyze it using the following suvat equation:
where, taking downward as positive direction:
s is the vertical displacement
u is the initial velocity
t is the time of flight
g is the acceleration of gravity
For the ball dropped in this problem,
s = 10 m
t = 5.0 s
u = 0
Therefore, solving the equation for g, we find the acceleration due to gravity:
Answer:
Explanation:
It is given that,
Mass of the car 1,
Initial speed of the car 1,
Mass of the car 2,
Initial speed of the car 2,
It is mentioned that train cars are coupled together by being bumped into one another. Let V is the final velocity of the train cars after the collision. It can be calculated using the conservation of linear momentum as :
So, the final speed of the coupled train cars is 0.129 m/s towards x axis. Hence, this is the required solution.