Answer:
The elastic potential energy stored in the compressed piece is 5.47 J
Explanation:
Given;
elastic potential energy stored, E = 14 J
initial compression, x = 0.240m
The elastic potential energy stored in a spring is given as;
E = ¹/₂Kx²
where;
E is elastic potential energy
K is the spring constant
x is the compression
K = 2E / x²
K = (2*14) / (0.24²)
K = 486.11 N/m
When the spring is cut into three equal pieces, and one of pieces is then compressed by 0.150m, the energy stored in this piece is calculated as;
E = ¹/₂Kx²
E = ¹/₂(486.11)(0.15²)
E = 5.47 J
Therefore, the energy stored in one of the cut pieces compressed by 0.150m is 5.47 J
It would take her 2.2 m which is in about 1.7 seconds
Answer:
The bass has the lowest frequency ,it only causes vibrations but at a lower frequency
Answer:
load
a generator, a light bulb (load) and a closed switch
Explanation:
as explained in the other question, the fan is using generated electric energy to create mechanical movement. as such it is a load on the grid or circuit or net.
and electric power can only flow, if there is a closed (uninterupted) circuit from the power source to a load and back.
any open switch is an interruption of the circuit.
a buzzer is a kind of switch. it closes the circuit (and puts a load on) only when somebody presses it.
by the way, a closed circuit without a load will "destroy" (short circuit) the power source or at least the wires (burn through).
