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A bullet is fired horizontally with an initial velocity of 900 m/s at a target located 150 m from the rifle.
How much time is required for the bullet to reach the target?
Using the approximate value of g = 10 m/seconds squared, how far does the bullet fall in this time?
Walk 10 miles in the direction 54 degrees east of due north. Then walk 4 miles in the direction 23 degrees south of due east. How far will you be from your starting point?
When are the displacement, velocity, and acceleration equal to zero for the motion of a mass on a spring? A. at maximum displacement B. at minimum displacement C. at the equilibrium position D. at a displacement of 2x E.at a displacement of 1/3x.
a robot unloads a completed component from a machine and places it on a gravity conveyor. the conveyor accelerates from
Force F = -13jhatN is exerted on a particle at r = (3ihat+5jhat)m. What is the torque on the particle about the origin
A point mass of 1kg collides elastically with a stationary point mass of 5 kg. calculate total momentum of system and kinetic energy of centre of mass
The primary winding of a transformer has 1200 turns, and is connected to 120 V A.C. (r.m.s. value). The secondary has a 25 W load resistor, Continuing, how many turns are in the secondary winding
an electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
In discharging a capacitor what percentage of the initial potential remains after one time constant has passed? After two times constants? Three times constants
The work done by an engine equals one-half the energy it expels to a cooler at 0C. what is the temperature of the heater
The electric field everywhere on the surface of a thin spherical shell of radius 0.780m is measured to be equal to 940 N/C and points radially toward the center of the sphere.
Unpolarized light passes through two Polaroid sheets. The transmission axis of the analyzer makes an angle of 20.8° with the axis of the polarizer
A "biconvex" lens is one in which both surfaces of the lens bulge outwards. What is the focal length f of this lens in air
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