Answer:
F = 9.216 × 10⁻³ N
Explanation:
given,
dipole moment = 1 × 10⁻⁷ Cm
distance apart from +80 nC charge = 25 cm
to calculate the magnitude of electric force
Electric field due to dipole
E = 1.152 × 10⁵ N/C
electric force on the ball
F = E q
= 1.152 × 10⁵ × 80 × 10⁻⁹
F = 9.216 × 10⁻³ N
Hence, the electric force is equal to F = 9.216 × 10⁻³ N
Answer:
The amount of Potential Energy lost in the form of Thermal Energy is equal to 41.64 MJ.
Explanation:
mass of the cart and passengers = m = 3.5*10⁴ kg
Height = h = 126.5 m
g = 9.8 ms⁻²
v = 10 ms⁻¹
At the top position the Total energy of the ride is in the form of potential energy given as:
P.E = mgh
= 3.5*10⁴*9.8*126.5
= 43389500 J
At the bottom of the drop, all the Potential Energy will be converted into K.E as the ride develops speed given as:
K.E = 0.5*m*v²
= 0.5*3.5 x 10⁴*100
= 1750000 J
The K.E is much less than the P.E energy even though all the P.E of the ride has been converted. The loss of energy is due to the formation of thermal energy which can be calculated as:
Thermal Energy lost = Total energy in the form of P.E(top) - Total energy in the form of K.E(bottom)
= 43389500 - 1750000
= 41639500 J
= 41.64 M J approx M J = mega joule = 10⁶ J
Force applied on first mass = 2.8×3.9 = 10.92N
same force = 8.2×a
therefore
a = 10.92÷8.2 = 1.33ms-²
Answer:
An acceleration of 5m/s^2 means that the velocity of a body is increasing by 5m/s per second in a certain direction
Explanation:
