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Tom twirls a ball of 0.15 kg on a string in a horizontal circle of radius 0.4 m. The ball travels once around the circle in 1.2 s.
a. Find the speed and acceleration of the ball. What kind of acceleration are we dealing with?
b. Calculate the centripetal force on the ball. What is centripetal force?
c. Calculate the gravitational force between Tom and the ball, when the ball is 1.5 m away from Tom. Assume Tom has a mass of 80 kg. Physically what is the difference between a centripetal force and a gravitational force.
An asteroid of mass 59,000 kg carrying a negative charge of 12.0 μC is 170 m from a second asteroid of mass 58,000 kg carrying a negative charge of 15.0 μC
determine the force P needed to support the 100-lb weight. Each pulley has a weight of 10 lb. Also, what are the cord reactions at A and B
A standing wave on a string that is fixed at both ends has frequency 80.0 Hz. What is the speed of the waves on the string
consider a system of particles in three dimensions with momentum p and energy E=cIpI,c being the constant.the system is maintained at the inverse temperature 'bita' , volume 'V' and chemical potential 'mu'.
If the magnitude of the electric field at the surface of an is olated solid spherical conducting ball is 0.1 V/m and the electric potential is 899 Volts, what is the capacitance C of the ball?
A proton having an initial velocity of 17.2i hat bold Mm/s enters a uniform magnetic field of magnitude 0.360 T with a direction perpendicular to the proton's velocity. Determine the distance the proton traveled in the field
A battery with EMF 6.0 Volts and internal resistance 0.1 ohms is connected by a long wire to a resistor R = 8.0 ohm. If the current in the solenoid is I = 200 Amps and is constant, then what is the current through the 8 ohm resistor
A bug of mass 1.0 grams is caught up in the center of an oscillating spider web. show that this motion is generated by hooke's law force, f=-kx
A 5.25 uF capacitor is initially charged to a potential of 15.0 V. It is then connected in series with a 3.55 mH inductor. What is the maximum current in the inductor
A student wearing frictionless in-line skades on a horizontal surface is pushed by a friend with a constant force of 23.00N. How far should the student be pushed, starting from rest, so that her final kinetic energy is 283J.
A blood transfusion is being set up in an emergency room for an accident victim. What is the distance h above the victim's arm where the level of the blood in the transfusion bottle should be located
find a horizontal force needed to pull a mass of 500 gram at constant velocity on a level surface and µk = 0.3?
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