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(a) What is the capacitance of the capacitor? (b) What is the magnitude of the maximum charge on one plate of the capacitor? Note: The ac current and voltage are rms values and power is an average v
A person is standing 2.25 meters from a shining buidling, holding a balloon which is floating 2.55 meters directly above his eyes. What is the distance from his eyes to the image of the balloon he s
A home receives 1.7kW of electric power from a transformer on a nearby pole. The line from the substation to the transformer is at 10kV and has 0.15 Ohms resistance. What fraction of the power is lo
A 3.3T magnetic field makes a 45 degree angle with a square loop 32cm on a side. What's the magnetic flux through the loop? Express your answer to two significant figures and include the appropriate
A capacitor is connected to a 240V (peak), 50Hz power supply. If the maximum current is 430mA, what is the capacitance? Express your answer to two significant figures and include the appropriate uni
Developing a more realistic model, the bioengineer models the acceleration of the snow petrl by an equation of the form a = C(1 + sin wt), where C and w are constants.
What is the angle of refraction as the ray enters the air on the far side of the prism?
A car travels at a constant speed around a circular track, whose radius is 2.6 km. The car goes once around the track in 360s. What is the magnitude of the centripetal acceleration of the car?
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 315 N for 7.1 s, during which time the refrigerator moves a distance of 3.4 m at constant velocity. (
How fast is the gyroscope precessing, in units of rad/s, if the disk is spinning around the axle at 28 rev/s?
The string is pulled downward 17.4 cm through the hole in the frictionless table. Determine the work done on the puck.
A laser beam with a wavelength of 632.8 nm is directed from air into plastic which has an index of refraction of 1.51. a. What is the speed of the beam in the plastic?
An A.C. generator which produces an RMS voltage of 120 V at 60 Hz is connected to an 8 H inductor. There are no other elements in the circuit. How is the phase of the current through the inductor re
In a container of negligible mass, 0.200 kg of ice at an initial temperature of 40.0 C is mixed with mass m of water that as an initial temperature of 80.0 C. No heat is lost to the surroundings. If
If the loop's diameter changes from 24.4cm to 5.0cm in 0.42s the direction of the induced current would be clockwise. What is the magnitude of the average induced emf? If the coil resistance is 1.9
An individual femur is normally 43.2 cm long and 2.75 cm in diameter. Find the change in each dimension when the individual suffer a high 104.5 F fever.
A surveyor's 30.0-m steel tape is correct at a temperature of 20.0 C. The distance between two points, as measured by this tape on a day when its temperature is 5.00C, is 25.970 m. What is the true
What is the equivalent capacitance of two capacitors with capacitances of 0.50 uF and 0.60 uF when they are connected in parallel?
Calculate the one temperature at which Fahrenheit and Celsius thermometers agree with each other.
A 9.0 kg mess kit sliding on a frictionless surface explodes into two 4.5 kg parts, one moving at 3.0 m/s, due north, and the other at 5.0 m/s, 30° north of east. What was the original speed of
This is the interference pattern on a viewing screen behind two slits. How would the pattern change if the two slits were replaced by 20 slits having the same spacing d between adjacent slits?
A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 3.00 and whose dielectric strength is 4.00 108 V/m. The desired capacitance is 0.300 µF, and
A rectangular aluminum bar with a cross-section of (0.02 x 0.08) m^2 and length 1 m carries a current of 100A. The conductivity of aluminum is 3.54 x 10^7 S/m. a. Determine the resistance of the bar
A sphere of radius R consists of linear materials of dielectric constant k. Embedded in the sphere is a free-charge density p = kr, where k is constant and r is the distance from the sphere's center
If a 61.0 astronaut is standing on a scale inside the shuttle during this launch, make a free-body diagram of the astronaut. Draw the force vectors with their tails at the dot.