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A pendulum clock can be approximated as a simple pendulum of length 1.48 m and keeps accurate time at a location where g = 9.82 m/s2. In a location where g = 9.71 m/s2, what must be the new length of the pendulum, such that the clock continues to keep accurate time (that is, its period remains the same)?
The magnetic flux through a circuit is reduced from 35 Tm^2 to 5 Tm^2 in 0.1s. The current induced in the circuit is 3.6 mA. What is the resistance to the circuit
An aluminum rod of length l has a resistance of .8 ohms. Half of the rod is machined down so that half of the rod now has half of the radius of the original radius. What will be the new resistance
Keeping a constant speed of 0.6 m/s, a marble of mass 18 g rolls back & forth across a shoebox that is 14 cm high & 2 mm thick. Estimate the probability of its escaping through the wall of the box by quantum tunnelling.
A car of mass 1,800 kg is initially traveling at a speed of 15 m/s. Calculate the change in the kinetic energy of the car
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 child sits on the edge of a spinning merry-go-round that has a radius of 2.2 m. The child's speed is 4 m/s. What is the child's acceleration
How does the magnitude of electrical force between a pair of charged objects change while the objects are moved twice as far apart? Three times as far apart.
The coefficient of static friction is .8 between the soles ofa sprinters shoes and the level track surface she's running on. Determine the maximum acceleration she can achieve
calculate the power transferred from the preamplifier to a power amplifier if the voltage is 1.5 volts and the input
A pendulum consists of a compact 0.30 kg bob attached to a string of length 1.90 m. A block of mass m rests on a horizontal frictionless surface. The pendulum is released from rest at an angle of 53° with the vertical.
In a region of vacuum containing a magnetic field of 9.00 T and an electric field of 9.00 V/m, calculate the energy density due to each field
At 20.0°C, a mainly silicon resistor has a resistance of 395 ?, and a tungsten resistor has a resistance of 752 ?. At what temperature will their resistances be equal
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