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A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. Angling the mortar at an angle of ? = 67.0o (as shown), the crew fires the shell at a muzzle velocity of 232 feet per second. How far down the hill does the shell strike if the hill subtends an angle ? = 36.0o from the horizontal? (Ignore air friction.)How long will the mortar shell remain in the air? How fast will the shell be traveling when it hits the ground?
A projectile is fired with an initial speed of 36.2m/s at an angle of 41.1 degrees above the horizontal on a long flat firing range. determine maxiumum height reached by projectile
A student is reading a lecture written on a blackboard. If the writing on the blackboard is 4.80 cm high, what is the size of the image on her retina
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.1 kg and the sign has a mass of ms = 16.6 kg. What is the net force the hinge exerts on the beam
What is velocity relative to the ice surface
The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car's acceleration is 4.55 m/s2. how long does it take to stop and how far does it travel
A spacecraft receding from he earth at 0.97c transmits data at the rate of 1*104pulses/s. At what rate are they received.
Light of wavelength 5.70 x 102nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
Density-Gravity Problem: a) Planet Vulcan has twice the mass of Earth and the same radius. What are its volume, density and surface gravity compared to Earth?
You're standing on a carousel 1.34 m from its axis of rotation. What minimum distance would you need to walk to arrive at a position where your contribution to the total moment of inertia has doubled?
A person walks first at a constant speed of 5 m/s along a straight line from point A to point B, How much distance does the person cover on her trip
A cart of mass m moves with a speed v on a frictionless air track and collides with an identical cart that is stationary. what is the final kinetic energy of the system
A converging lens, which has a focal length equal to 8.2 cm, is separated by 32.5 cm from a second lens. Find the position of the final image using both a ray diagram and the thin-lens equation
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