Answer: 
Explanation:
Given
Charge 
Resistance 
Time 
Charge is the amount of current flown in a particular time
Power is the given by 
Insert values
The power is in the circuit is .
Answer:
The strength of the electric field is 2.258 x 10⁸ N/C
Explanation:
Potential energy = -p*ECosθ
where;
d is the dipole moment
E is the electric field
θ is the angle of inclination
→When the water molecules is perpendicular to the field, θ =90° and potential energy = p*ECosθ = d*ECos0 = 0
Total potential energy = 0 + 1.40×10⁻²¹J, since it is 1.40×10⁻²¹J more
→When the water molecules is aligned to the field, θ =0°
potential energy = -p*ECosθ
dipole moment, p = 6.2×10⁻³⁰Cm
= -(6.2×10⁻³⁰)*(E) Cos0
0 + 1.40×10⁻²¹ J = -(6.2×10⁻³⁰)*(E),
E = (1.40×10⁻²¹ J)/(6.2×10⁻³⁰)
E = 2.258 x 10⁸ N/C
Therefore, the strength of the electric field is 2.258 x 10⁸ N/C
resultant force = thrust – weight
acceleration = resultant force (newtons, N) divided by mass (kilograms, kg).
Acceleration = resultant force divided by mass
53N/0.56
=94.64 approximately 95
= 95m/s^2
This means that, every second, the speed of the rocket increases by 95m/s2
the S.I unit of Acceleration is meter per second square.
Answer:
5.42 s
Explanation:
Using the equation of motion,
v = u + at ..................... Equation 1,
Where v = Final velocity, u = initial velocity, a = acceleration, t = time.
Making t the subject of the equation,
t = (v-u)/a ....................... Equation 2
Note: When the the bicycle is brought to a complete stop, the final velocity of the bicycle is 0 m/s and the bicycle is decelerating.
Given: v = 0 m/s, u = 6.5 m/s, a = - 1.2 m/s² ( decelerating).
Substituting into equation 2
t = (0-6.5)/-1.2
t = -6.5/-1.2
t = 5.42 s.
Hence the time take for the cyclist to bring the bicycle to complete stop = 5.42 s
it's called elastic potential energy
