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Problem: The speed of a bullet is measured to be 615 m/s as the bullet emerges from a barrel of length 1.35 m. Assuming constant acceleration,
Part A- Find the time that the bullet spends in the barrel after it is fired.
I know the correct answer for above problem but explain how to find the time that the bullet spends in the barrel! Thanks.
Rate Equations in a Four-Level Laser. Consider a four-level laser with an active volume V = 1 cm ^3 . The population densities of the upper and lower laser levels are N 2 and N 1 and N = N 2 - N 1 . The pumping rate is such that the steady-state p..
You're driving down the highway late one night at 17 {rm m}/{rm s} when a deer steps onto the road 45 {rm m} in front of you. Your reaction time before stepping on the brakes is 0.50 {rm s} and the maximum deceleration of your car is 12 {rm m/s^2}..
A sphere that is a perfect blackbody radiator has a radius of 0.120 m and is at 200°C in a room where the temperature is 20°C. Calculate the net rate at which the sphere radiates energy
if air is 21 percent oxygen by volume and oxygen has a density of 1.31 gl what is the volume of a room that contains
A 2.0-kg solid cylinder of radius 0.5 m rotates at a rate of 40 rad/s about its cylindrical axis. What power is required to bring the cylinder to rest in 10 s
A point of charge of -4.00 nC is at the origin, and a second point of charge of +6.00 nC is on the x axis at x= 0.800 m. Discover the magnitude and direction of the electric field at the following points On the x axis: x= 20cm, x=1.2m, x=-20cm.
A bullet of mass 25.0 g is fired into a wooden block of mass 2.200 kg that is initially at rest. what is the speed of the bullet before it impacted the block
A projectile is fired straight upward from Earth's surface with a speed that is 0.816 times the escape speed. what is the highest altitude reached measured from the surface of the Earth
Two parallel plates, each of area 6.52 cm2, are separated by 3.00 mm. The space between the plates is filled with air. Calculate the magnitude of charge stored on each plate
A 1.00 liters vessel contains a monatomic gas under STPconditions. if 32.0J OF ENERGY is added to the gas (at constant volume) what is the new temperature of the gas
In the absence of an applied torque a rigid body with three distinct principal moments of inertia given by I1, I2 and I3 is rotating freely about a fixed point inside the body.
find the tension in the tight rope
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