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At what minimum speed must a roller coaster be traveling when upside down at the top of a circle (Fig. 5-34) if the passengers are not to fall out? Assume a radius of curvature of 9.4 m.
An 24 g rifle bullet traveling 370 m/s buries itself in a 4.8 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. find the maximum vertical displacement of the pendulum.
At the factory, a noon whistle is sounding with the frequency of 464 Hz. As a car travelling at 76 km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the chang..
A circular coil of wire with 10 turns and a 4.0 cm radius is located between the poles of a large electromagnet that produces a uniform magnetic field of 0.5T. Calculate the average induced emg across the ends of the loop
q1. what are the magnitude and direction of the electric field 21.2 cm directly above an isolated 40.7 x 10-6 c
A block of wood is compressed 2.4nm when inward forces of magnitude 128N are applied to it on two opposite sides. what is the effective spring constant of the block
In reality, the COP of the heat pump will only be 60 percent of the ideal value. What is the minimum power of the electric motor when the COP is 60 percent of the ideal value
A violin string of length 35 cm and mass 1.1 g has a frequency of 478 Hz when it is vibrating in its fundamental mode. What is the wavelength of the standing wave on the string
A balloon of volume 4.4 m3 contains argon gas at a pressure of 4.4 105 Pa and room temperature (20°C). What is the total internal energy of the gas? J
A subatomic particle X spontaneously decays into two particles, A and B, each of rest energy 1.40 × 102 MeV. Determine the total energy of particle A
An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10.0°C. Determine the specific heat of the unknown sample
An 87.6 g lead ball is dropped from rest from a height of 5.60 m. The collision between the ball and the ground is totally inelastic. Assuming all the ball's kinetic energy goes into heating the ball, find its change in temperature.
A positive charge of 0.400 millicoulomb is located at Y=1.2m. Another positive charge, of 0.250 milllicoulomb, is at the origin. What is the electric field vector at the origin
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