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A cannon fires a cannon ball eastwards at a speed of 20 m/s (this speed is along the barrel of the cannon) and an angle of 45o above the horizontal. At the same time and from the exact same starting position a motorized cart begins to travel horizontally eastwards along the level ground. The cart, starting from rest, undergoes constant acceleration while the cannon ball rises and then moves with zero acceleration as the cannon ball falls back to the ground. Gravity act along the vertical at exactly -10 m/s2.
If the cart is to be at the same position as the cannon ball when the cannon lands, then what is the acceleration of the cart?
A uniform solid sphere of mass 1.5 kg and diameter 30.0 cm starts from rest and rolls without slipping down a 35° incline that is 7.0 m long. Determine the angular speed of the sphere about its center at the bottom of the incline
The paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 39.86 m, y = 16.41 m, and t = 2.68 s.
q1. suppose a uniformly charged with a linear charge density wire starts at point 0 and rises vertically along the
An iron tower in is 39 meters tall on a cold day, What is the HEIGHT of the tower on a hot day when the temp is 31.5 degrees Celcius
A hydraulic lift has pistons with areas 0.60m^2 and 5.30m^2 , and they're at the same height. how much mass can the larger piston support
Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. Determine the speed of each disk after the collision
A pressure of 10 Pa is applied through a piston uniformly on the surface of water in a cylinder. How much of this pressure if it is 80 cm deep?
A step-up transformer increases 16.9 Volt to 115.0 Volt. Find the ratio of the currents in the secondary as compared to the primary
parachutist with a camera, both descending at a speed of 13 m/s, releases that camera at an altitude of 110-m.
In a single-slit diffraction experiment, a beam of monochromatic light of wavelength 630 nm is incident on a slit of width 0.400 mm. If the distance between the slit and the screen is 1.80 m, what are the positions of the first dark fringes?
You are asked to make some measurements of microwaves using a "polarizing grid" consisting of metal wires.Since an electric field does not penetrate a conductor, linearly polarized microwave radiation will pass through the grid most easily when (m..
A 4 kg box is raised from rest adistance of 6 m by a vertical force of110 N. Find the final kinetic energy of the box
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