Answer:
The charge pass through your hair dryer is 3000 C.
Explanation:
Given that,
Power = 1200 W
Voltage = 120 V
Flow time = 5 min
We need to calculate the current
Using formula of power
Put the value into the formula
We need to calculate the charge pass through your hair dryer
Using formula of current
Put the value into the formula
Hence, The charge pass through your hair dryer is 3000 C.
Answer: T= 715 N
Explanation:
The only external force (neglecting gravity) acting on the swinging mass, is the centripetal force, which. in this case, is represented by the tension in the string, so we can say:
T = mv² / r
At the moment that the mass be released, it wil continue moving in a straight line at the same tangential speed that it had just an instant before, which is the same speed included in the centripetal force expression.
So the kinetic energy will be the following:
K = 1/2 m v² = 15. 0 J
Solving for v², and replacing in the expression for T:
T = 1.9 Kg (3.97)² m²/s² / 0.042 m = 715 N
Answer:
e
Explanation:
the field points to the right
Answer:
1: Force, F = 200N
2: coefficient of friction = 0.5
Answer:
3,3*10^-11 J
Explanation:
A=Uq=2,08*10^8 V * 1,6*10^-19 C=3,3*10^-11J