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A car of mass = 1200kg traveling at 55.0km/hr enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires. (Figure 1) . Use g = 9.80 m/s2 throughout this problem. What is the radius r of the turn if angle= 20.0 (assuming the car continues in uniform circular motion around the turn)? answer in meteres.
The pressure in an automobile tire is usually quoted (in the United States) in pounds per square inch (lb/in2), What is the value of the gauge pressure in Pascals
A basketball player makes a jump shot. The 0.606 kg ball is released at a height of 2.18 m above the floor with a speed of 7.26 m/s. What is the work done on the ball by air resistance, a nonconservative force
A 0.100 kg block is suspended from a spring. When a small pebble of mass 40 g is placed on the block, What is the net force on the pebble when it is at a point of maximum upward displacement
A steel ball with radius 1 cm is rolling along a table with speed 20.00 cm/sec when it starts to roll up an incline. How high above the table level would it rise before stopping.
A parallel-plate capacitor has plate area 2.5×10?3m2 and plate spacing 3.0×10?2m, Find the stored charge and energy when this capacitor is connected across a 60V battery
A hotel elevator ascends 200 m with maximum speed of 5m/s . Its acceleration and deceleration both have a magnitude of 1.0 m/s^2 . a.)How far does the elevator move while accelerating to full speed from rest?
A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ? = 0.180 kg/m3). How long will it take for the top of the shell to reach the water surface
A small glass bead has been charged to +30.0nC. What is the charge on the ball bearing
A luminous object is 3.40m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
A model rocket blasts off and moves upward with an acceleration of 13m/s^2 until it reaches a height of 27m, What is the total duration of the rocket's flight
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 20000 V. The speeds of the electrons are quite large.
A large research balloon containing of helium gas at 1.00 and a temperature of 15.0 rises rapidly from ground level to an altitude at which the atmospheric pressure is only 0.900, What is the change in internal energy of the helium
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