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Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, how much potential energy is stored in the capacitor
an initially stationary block of mass m on a floor. A force of magnitude F = 0.580·mg is then applied at upward angle ? = 16°. What is the magnitude of the acceleration of the block across
A battery has an emf of 7.5 V and 16 A of current flows through it. What power is this battery supplying
Two charged particles, q1 = ?2.50×10?3 C and q2 = +3.550e-3 C, are separated by a distance of 5.00 cm. find the electric potential energy of this configuration
A solenoid 85.0 cm long has a cross-sectional area of 22.0 cm2. It has 1000 turns of wire, and is carrying a current of 6.60 A. What is the magnetic field inside the solenoid
The flux through a hollow uncharged box is 69 Nm2/C. The box is a cube with length 20 cm. How much charge is inside the box
The potential difference across a coil is 2.93V at an instant when the current is 347mA, changing at a rate of 327mA/s. At a later instant, What is the inductance of the coil
A 3700-lb automobile (m = 1600 kg) starts from rest on a level road and gains a speed of 45 mi/h (= 72 km/h) in 33 s. What is the average net power delivered to the car during the 33-s interval
A capacitor consists of square conducting 21cm on a side and 4.5mm apart, carrying +- 1.0 uC. Find the electric field between the plates
A cat dozes on a stationary merry-go-round, at a radius of 6.0 m from the center of the ride. What is the least coefficient of static friction between the cat and the merry-go-round
If the pressure on a fish increases from 1.20 to 1.30 atm, its swim bladder decreases a volume from 8.19 mL to 7.56 mL, How much work is done on the air in the bladder
According to Equation 20.7, an ac voltage V is given as a function of time t by V = Vo sin 2ft, what is the smallest value of the time at which the voltage equals one-half of the peak-value
The shell, with radius R and negligible thickness, has net charge - 4.00 q. Find an expression for the electric field strength outside the sphere
A 5.0 ice cube at -20 is in a rigid, sealed container from which all the air has been evacuated. How much heat is required to change this ice cube into steam
string under a tension of 50.5 N is used to whirl a rock in a horizontal circle of radius 2.55 m at a speed of 20.3 m/s on a frictionless surface, What is the breaking strength, in newtons, of the s
Find the group velocity of 0.57 MeV protons. Find the phase velocity of 0.57 MeV protons. Find the phase velocity of 0.57 MeV electrons
A camel sets out to cross the desert, which is 45.2 km wide in the north-south direc- tion. Calculate the camel's eastward displacement while he crosses the desert
A child rides a toboggan down a hill that descends at an angle of 18.6? to the horizontal. The hill is 37.6 m long. find the vertical component of the child's displacement
A truck travels 1690 m uphill along a road that makes a constant angle of 4.82? with the horizontal. Find the magnitude of the truck's vertical component of displacement
A diver runs horizontally off the end of a diving board with an initial speed of 1.70 m/s, what is the diver's speed just before she enters the water
A sailboat runs before the wind with a constant speed of 3.7 m/s in a direction 32 degrees north of west. How far north has the sailboat traveled in 21 min
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 25 km/h
block A (mass 2.28 kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 2.57 kg ), evaluate the tension in the cord
A 66 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 15° above the horizontal. what is the magnitude of the initial acceleration of the crate
A 43 kg girl and an 8.4 kg sled are on the frictionless ice of a frozen lake, 17 m apart but connected by a rope of negligible mass. What is the acceleration of the girl