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Fighter airplane is flying horizontally at the altitude h=5000m with velocity of u=100m/s. When airplane passes directly above an air defense station, the battery fires a gun to intercept the airplane. Initial velocity of the projectile V(0)= 500m/s. Disregarding air resistance, find the following;
A) at which angle ? to the horizontal should the gun fire to hit the target?
B) what is the time t until the impact?
C) what is the horizontal distance s from the fun to the point of impact?
You are driving north on 107th Avenue at a speed of 28.7 mph. At what frequency do you year the siren
A disk is turning with uniform circular motion. A point on the rim of the disk is moving with velocity v1 = (1.5 m/s)i + (2.0 m/s)j at t1 = 3.00 ms, find the magnitude of the point's centripetal acceleration
A grating has 350 rulings/mm and is illuminated at normal incidence by white light. A spectrum is formed on a screen 30cm from the grating. what range of wavelength passes throught the hole
A U-shaped tube is connected to a box at one end and open to the air at the other end. What is the gas pressure inside the box
Assume that the only force acting on him throughout the collision is that as a result of the ground.
What is average kinetic energy of each helium atom
A 10 g bullet traveling at 440m/s strikes a 7.0kg , 1.2-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
Suppose a light bulb is rated for a voltage of 1.8 V. At this voltage is draws a current of 0.054A, Using Ohm's Law, determine the resistance of the bulb
Compute the mass of a ball and speed of a puck after collision.
Consider a very high energy cosmic ray photon, with energy 109mp = 1018 eV as measured in Sun's rest frame, scattering off a cosmic microwave background photon with energy 2 x 10-4 eV . Establish the maximum energy of the scattered photon.
what is the new value of energy stored in it. What is the force that is acting between them.
A 0.80 kg mass is attached to a light spring with a force constant of 23.9 N/m and set into oscillation on a horizontal frictionless surface. determine maximum speed of the oscillating mass
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