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luggage is transported from one location to another in an airport by a conveyor belt at a certain location the belt
a projectile of mass 0750 kg is shot straight up with aninitial speed of 180 msa how long would it go if there wereno
an explosion breaks an object originally at rest into two fragments one fragment acquires twice the kinetic energy of
calculate the ratio of the drag force on a jet flying at 899kmh at an altitude of 78 km to the drag force on a
an explosion breaks an object into two pieces one of which has 15 times the mass of the other if 7500 j were released
a train engine weighs 5 times as much as aflatbed car if the engine coasts at 3 kmhr into the boxcarthat is initially
the alveoli in the lungs have an average radius of 0125 mm and areapproximately spherical if body temperature is 370
a persons face is 30cm ini front of a concave shaving mirror if the image is an erect image 15 times as large as the
a single-turn plane loop of wire with a corss-sectional area 200cm2 is perpendicular to a magnetic field that increases
a 18 g rifle bullet traveling 230 ms buries itself in a 36 kg pendulum hanging on a 28 m long string which makes the
a square conductor of edge length 4m carries a clockwise currentof 10a what are the magnitude and direction of the
a 915 n crate rests on the floora how much work is required to move it at constant speed55 m along the floor against
suppose the coefficient of static friction between the road and thetiers on a car is 060 and the car has no negative
a 750 kg stunt man jumps from a balcony and falls 225 m before colliding with a pile of mattressesif the mattresses are
a light beam strikes a piece of glass at a 7200circincident angle the beam contains two wavelengths 4500rm nmand 7000
a current of 014 a is maintainedin a rectangular loop of wire lying flat on a table top when thereis a magnetic field
a 36-kg skier coasts up a snow-covered hill thats makes anangle of 25o with the horizontal the initial speed ofthe
two circular coils of current-carrying wire have the same magnetic moment the first coil has a radius of 0091 m 120
a tennis player receives a shot with the ball 00600 kgtraveling horizontally at 500 ms and returns the shot with the
a velocity selector has an electric field of magnitude 2500 ncdirected vertically upward and a horizontal magnetic
a man drinks a bottle of beer and proposes to work off its460kj by exercising with 20 kg barbell if each lift of
a traffic light weighing 668n is hung from the center of acable of negligible weight that is stretched horizontally
a rifle with a barrel length of 610 cmfires a 100 g bulletwith a horizontal speed of 360 rm ms the bullet strikes a
two particles collide and stick together to form anew particle first particle has a rest energy eo and a kinetic energy
a 140 kg astronaut including space suit acquires a speed of250 ms by pushing off with his legs from an 1800 kg space