Answer: A longitudinal wave has the greatest energy for amplitude 10 cm.
Explanation:
We know that,
The energy is directly proportional to the square of the amplitude.
(I). Amplitude = 10
then, the energy will be
(II). Amplitude = 6
then, the energy will be
(II). Amplitude = 4
then, the energy will be
Hence, A longitudinal wave has the greatest energy for amplitude 10 cm.
Answer:
<h2>The potential difference increases </h2>Explanation:
from the relation
where E= electric field (force per coulomb)
V= voltage
d= distance
Hence the voltage is going to be V= E×d.
Therefore this means that increasing the distance increases the voltage.
Answer:small barrel gun
Explanation:
Given
Muzzle velocity of bullet is greater in short barrel gun as compared to larger barrel gun
acceleration is given by change in velocity with respect to time
In case of short barrel bullet time taken by bullet to reach its muzzle velocity is less therefore acceleration of small barrel bullet is more compared to long barrel bullet.
Answer:
294J
Explanation:
The work done by gravity is independent of the horizontal distance. It is only dependent on the vertical height of 15m above its initial position.
The work done against gravity is given by
Given;
m = 2.0kg
Hence;