The mechanical energy of an object is the sum of its potential and kinetic energy.
Because the ball is on the ground, its potential energy is 0.
Its kinetic energy is given by:
K.E = 1/2 mv²
K.E = 1/2 x 1 x 2²
K.E = 2 J
Mechanical energy = 2 + 0
Mechanical energy = 2 J
The answer is B.
Explanation is in the file
tinyurl.com/wpazsebu
Answer:
F = Bev
Explanation:
B is magnetic field density
e is the electron charge
v is the electron velocity
Answer:
945 joules
Explanation:
Kinetic energy = 1/2(MV²)
Given parameters
Mass = 2.1kg
Velocity = 30m/s
K.E = 1/2(2.1 x 30²)
K.E = 1/2( 2.1 x 900)
K.E = 2.1 x 450
K.E = 945 joules
In transversal wave particles do not oscillate along the line of the wave propagation but oscillate up and down about their mean position as the wave travels.thus transverse wave is the one in which individual particles of the medium move about their mean position in a direction perpendicular to the direction of wave propprgation.
In longitutional waves the individual particles of the medium move in the direction parallel to the direction of the propprgation of the disturbance. The particles do not move from one place to another but the simply oscillate back and forth about their position of the rest.
HOPE IT HELPS.
