Answer:
current in the circuit is 1.428 A
Explanation:
Given data
voltage = 60 V
resistor = 21 Ω
time = 0
to find out
current in the circuit
solution
we have given that
voltage across the resistor = voltage across the inductor
that is = 60 /2 = 30 V
we know voltage across resistor = IR
so I × R = V/2
and current I = 30 /21
so current = 1.428 A
current in the circuit is 1.428 A
Answer:
Electric field on proton

Explanation:
Given that

We know that
Charge on proton

We know that
Force = Electric field x Charge
F= E x q



Electric field on proton

Magnitude of normal force acting on the block is 7 N
Explanation:
10N = 1.02kg
Mass of the block = m = 1.02 kg
Angle of incline Θ
= 30°
Normal force acting on the block = N
From the free body diagram,
N = mgCos Θ
N = (1.02)(9.81)Cos(30)
N = 8.66 N
Rounding off to nearest whole number,
N = 7 N
Magnitude of normal force acting on the block = 7 N
Assuming motion is on a straight path, the result of two positive components of a vector would also be a positive value since both are having positive signs and directions. The direction would be the same with the motion as well. Hope this answers the question. Have a nice day.