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A 7.25-g bullet is fired from a gun. The muzzle velocity of the bullet is 223 m/s.
Suppose that the bullet accelerates at a constant rate along the barrel of the gun before it emerges with constant speed.
The barrel of the gun is 0.203 m long. What average force does the bullet exert on the gun?
A 415V 3-phase a.c. motor has a power output of 12.75kW and operates at a power factor of 0.77 lagging and with an ef?ciency of 85%. If the motor is delta-connected, verify
Which is correct statement about proton: (1)Proton is nucleus of deuterium (2)Proton is ionized hydrogen molecule (3)Proton is ionized hydrogen atom (4)Proton is alfa
i. Open System - Here the system boundary is like energy and matter can enter or leave the system freely. Infect the system boundary here is imaginary. ii.Closed System - Here t
Second; s: The basic SI unit of time, explained as the period of time equal to the duration of 9 192 631 770 periods of the radiation equivalent to the transition among two hy
The truss shown below supports is fastened to the supports at A & E. Each member of the truss is made of the same uniform material that has a weight in kiloNewtons per metre (kN/m
if you drop a ball from a tall building, after 4.2 seconds what is its speed in m/s?
Q. How greatly does sea salt weigh per cubic foot? Answer:- Sodium chloride NaCl weighs 72 lb/ft 3 .
Why there are two propellers in helicopter
What is the acceleration due to gravity and does the number ever change on earth
working principle of vibration and deflection magnetometer?
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