Answer:
(a) The height of the cliff is 19.6 m
(b) The horizontal distance travelled by the ball is 60 m
Explanation:
Given;
initial horizontal velocity of the ball, u = 30 m/s
initial vertical velocity of the ball, v = 0
time taken for the ball to hit the ground, t = 2 s
(a) height of the cliff
h = vt + ¹/₂gt²
h = 0 + ¹/₂gt²
h = ¹/₂gt²
h = ¹/₂(9.8)(2)²
h = 19.6 m
(b) horizontal distance traveled by the ball = Range
Range = ut
Range = 30 (2)
Range = 60 m
Nonononononononononononononononononono
Answer:
The maximum electric field
Explanation:
From the question we are told that
The diameter is
The magnetic field of the cylinder is
The frequency is
The radial distance is
This magnetic field can be represented mathematically as
The initial magnetic field is the average between the variation of the magnetic field which is represented as
Then is the amplitude of the resultant field is mathematically evaluated as
The electric field induced can be represented mathematically as
At maximum electric field
You could attach both springs to the ceiling and hang the same mass from both. The one that stretches less has the larger spring constant value.
Answer:
The movement of electrons in the presence of a magnetic field.
Explanation:
cathode-ray tube (CRT) has to do with
a vacuum tube in which an electron beam is deflected by applying electric or magnetic fields, produces a trace on a fluorescent screen. Cathode-ray tubes are uses in the television (TV) display. Other uses include radar displays, oscillography, and visual displays for computer terminals.