Answer:
Inhibit the flow of electrons
Explanation:
An electric current usually consists of electrons moving through a wire.
An insulator prevents the flow of an electric current, so it inhibits the flow of electrons.
Calculate the acceleration of a car that is maintaining a constant velocity of 1m/s
2 answers:
Answer:
Acceleration, a =0
Explanation:
If the velocity is constant, it means the acceleration of the object is equal to zero. Mathematically, the acceleration of an object is given by :
It is also defined as the change in speed per unit time. Its SI unit is . It is a vector quantity.
So, it is concluded that if a car is maintaining a constant velocity of 1 m/s, its acceleration is equal to zero. Hence, this is the required solution.
You might be interested in
Answer:
T = 2010 N
Explanation:
m = mass of the uniform beam = 150 kg
Force of gravity acting on the beam at its center is given as
W = mg
W = 150 x 9.8
W = 1470 N
T = Tension force in the wire
θ = angle made by the wire with the horizontal = 47° deg
L = length of the beam
From the figure,
AC = L
BC = L/2
From the figure, using equilibrium of torque about point C
T (AC) Sin47 = W (BC)
T L Sin47 = W (L/2)
T Sin47 = W/2
T Sin47 = 1470
T = 2010 N
Answer:
The new speed of the ball is 176.43 m/s
Explanation:
Given;
mass of the ball, m = 7 kg
initial speed of the ball, u = 5 m/s
applied force, F = 300 N
time of force action on the ball, t = 4 s
Apply Newton's second law of motion;
where;
v is new speed of the ball
Therefore, the new speed of the ball is 176.43 m/s