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a car engine wastes 90 percent of its energy as heat if the car burns a gallon of gas 3785 ga obtain how much heat does
consider three charged particles located along the x-axis the particle with q1 919 nc is at x 570 meter and q2 443
a magnetic field has magnitude of 10 t and can be used to store energy find what magnitude of electric field one should
a diver running 25 ms dives out horizontally from the edge of a vertical cliff and 23 second later reaches the water
a centrifuge in a medical laboratory rotates at an angular speed of 3750 revmin when switched off it rotates through
the electric motor of a model train accelerates the train from rest to 0640 ms in 210 milliseconds the total mass of
a rotating wheel requires 900 second to rotate 250 revolutions its angular velocity at the end of the 900 s interval is
a race car starts from rest on a circular track of radius 353 meter the cars speed increases at the constant rate of
a rod is lying on the top of a table one end of the rod is hinged to the table therefore that the rod can rotate freely
a boy is riding a bicycle and its wheels have an angular velocity of 201 rads then the brakes are applied and the bike
a metallic wire has a diameter of 412 millimeter when the current in the wire is 8 amp the drift velocity is 540 x 10-5
a sign is supported by a cable and a horizontal beam the beam has a length 14 meter and a uniform mass of12 kilograma
a horizontal desk surface measures15 m x 10 m if the earths magnetic field has magnitude 040 mt and is directed 35
a stunt driver drives a 1500 kilogram truck with a length of 425 m around a circular curve with a radius of curvature
a flat uniform circular disk radius 491 meter mass 400 kilogram is initially stationary the disk is free to rotate in
a race car starting from rest travels around a circular turn of radius 283 meter at a certain instant the car is still
a car of mass m 900 kilogram traveling at 650 kilometer per hour enters a banked turn covered with ice the road is
three identical masses of 800 kilogram each are placed on the x axis one mass is at x1 -130 cm one is at the origin
in a circular flat track with a radius of 50 meter find what is the maximum speed a car can go without sliding suppose
a 10 gram bullet is fired horizontally with a speed of 155 ms into a 03 kilogram block that is initially at rest at the
a 9 kilogram hanging mass is connected by a string over a pulley to a 5 kilogram block sliding on a flat table if the
determine what is the tension in an elevator cable if the 1001 kilogram elevator is descending with an acceleration of
an ice-skater moving at 1 x 101 ms coasts to a halt in 1 x 102 meter on a smooth ice surface obtain coefficient of
a shot-putter moves his arm and the 7 kilogram shot through a distance of 10 m if the shot is given a velocity of 1 x
a lady at an airport is pulling a 15 kilogram suitcase with wheels at constant speed by pulling on a strap at an angle