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To ward off oceanic invaders, a cannon is placed 10 meters from the water's edge, pointing out at sea. The cannon is capable of firing a projectile at a maximum velocity of 100m/s.
a) what is the maximum firing range of the cannon?
b)If the cannon was placed on a cliff that was 250m high, how much farther would the cannonball be able to travel?
A 1000kg car moving 40m/s skids to a stop. During the skid, the only force is the frictional force between the tires and the road, which is 6000N. find the distance the car moves before coming to a stop
A painter is using a ladder to paint the outside of a house. The ladder, which is 8.44 m long and has a mass of 23.7 kg, Calculate the net torque acting on the ladder
A circular loop of flexible iron wire has an initial circumference of 169cm, but its circumference starts to decrease at a constant rate of 10.0cm/s due to a tangential pull on the wire. What is the direction of the induced current in the loop
A cubical block of wood 0.110 m on a sideand with a density of 560 kg/m3 floats in a jar of water. Oil with a density of 750kg/m3 is poured on the water until the top of the oillayer is 0.034 m below the top of the block
A planet of mass 6 × 1024 kilogram is at location ‹ -3 × 1011, 8 × 1011, 0 › meter. Calculate the force exerted on the planet by the star
A tennis player receives a shot with the ball of mass 0.060kg travelling horizontally at v=43 m/s and returns the shot with the ball travelling horizontally at 60.00 m/s in the opposite direction.
An electric field given by E = ai - b(y2 + c)j pierces the Gaussian cube of the figure, where the cube has side length d. What is the electric flux through the bottom face
An MP3 player operates with a voltage of 3.7 V, and is using 0.28 W of power. Find the current being supplied by the player's battery.
A laser beam in air is incident on a liquid at an angle of 53 degree with respect to the normal. The laser beams angle in the liquid is 35 degree. Evaluate what is the liquid index of refraction
A hockey stick delivers an impulse of 4.0{\rm kg \cdot m/s} causing the puck to move off in the opposite direction with the same speed. what is the mass of the puck
A vacationer floats lazily in the ocean with 95% of his body below the surface. The density of the ocean water is 1025 kg/m^3. what is the vacationers average density?
A water molecule, which is electrically neutral but has a dipole moment of magnitude p = 6.20·10-30 C m, Calculate the magnitude of the net force
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