Answer:
Explanation: It is inertia that causes the passengers to move toward the right side of the car. As the car swerves to left, passengers' body continues their motion as hitherto and as such it causes the passengers to move toward the right side of the car.
Approximately 100-120 wolves
Answer:
a).
The magnitude force impulse is
the average force is
Explanation:
Using the conservation energy the potential energy in the high is equal to the kinetic energy just before the collision so:
Notice the mass can be cancel as a factor so:
Now the impulse is determinate by:
The average force is also
Answer:
137 turns
Explanation:
The light is rated 60 W and normally operated at 115V,
using electrical power formula;
P (power) = I (currents in Ampere) × V ( potential difference in Volts)
substitute the power and V mentioned above into the formula
60 = I × 115
I = 60 / 115 = 0.522 A
with the Current above we can calculate the voltage expected for 100W in the secondary coil
P = I × V
100 = 0.522 × V
V = 100 ÷ 0.522 = 191.6 Volts is the voltage expected by the secondary coil of the transformer to deliver
using transformer formula with Vs being Voltage in the secondary coil and Vp voltage in primary coil, Ns being number of turns in the secondary coil and Np number of turns in the primary coil.
Vs = 191.6 volts, Vp = 35 volts Np = 25 and Np= ?
Vp/ Vs = Np / Ns
make Ns subject of the formula
Ns = Vs × Np / Vp
Ns = 25 × 191.6 / 35 = 136.9 turns approx 137 turns
Answer:
sir Isaac Newton is referred as the father of modern physics
