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A parallel-plate air capacitor has a capacitance of 940 pF. The charge on each plate is 2.10 µC. How much work is required to double the separation
A parallel-plate air capacitor is made by using two plates 19 cm square, spaced 3.5 mm apart. It is connected to a 3-V battery. What is the electric field between the plates
Consider a piece of nichrome wire which is attached to a 1.2-mm-diameter aluminum wire, as diagrammed in the figure below. What diameter should the nichrome wire in the figure below be in order f
The dielectric to be used in a parallel-plate capacitor has a dielectric constant of 2.40 and a dielectric strength of 1.60 107 V/m. What is the minimum area the plates of the capacitor may have
A skier starts from rest at the top of a hill that is inclined at 10.5? with the horizontal. The hillside is 191 m long, and the coefficient of friction between snow and skis is 0.0677. At the bo
A delivery truck travels 29 blocks north, 18 blocks east, and 26 blocks south. Assume the blocks are equal length. What is the magnitude of its final displacement from the origin
Estimate the fractional error (%) on the left side and on the right side of the equation based on the precision of the available equipment in class: the pulling mass is measured by slotted weight
A block of mass 0.6 kg is moving up a 40 degree inclined plane at a speed of 2 m/s. how far up the plane will the block go before stopping
A 61.0kg skater moving initially at 3.78m/s on rough horizontal ice comes to rest uniformly in 3.24s due to friction from the ice
A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.860 m/s encounters a rough horizontal surface of length scripted l = 0.65 m, Find the net work done on the crate while it is on the roug
A 60.0kg projectile is fired at 30.0 degree above the horizon at an intial spped of 124 m/s from the top of the cliff 114m above level ground, what is the intial total mechanism energy of the projec
A cubic meter of some material has a mass of 8000 kg. Find the buoyant force on the block and the tension in the cable
A stone is dropped at t = 0. A second stone, with twice the mass of the first, is dropped from the same point at t = 179 ms. How far below the release point is the center of mass of the two stones at
You exert a force of 21 N on the head of a thumbtack. The head of the thumbtack has a radius of 5 mm. What is the pressure on your thumb
A certain toaster has a heating element made of Nichrome resistance wire. What is the final temperature of the heating element
A length of aluminum wire has a resistance of 14.0 ? at 22.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, Neglecting thermal expansion, find the temperature of the oven
Suppose that you wish to fabricate a uniform wire out of 0.950 g of copper. Assume the wire has a resistance R = 0.600 ?, and all of the copper is used. What will be the length of the wire
Ice at 0 degrees Celsius and at a pressure of 1 atmosphere has a density of 916.23 kg m^-3 while water under these conditions has a density of 999.84 kg m^-3
A ball is thrown horizontally with a speed of 10.0m/s, from the edge of the top of a building of height 19.6m, What is the vertical component of the velocity just before the ball strikes the ground
In the circuit shown in the figure (Figure 1) the current through the 12.0-V battery is measured to be 70.6 mA in the direction shown
At a steady state, a well-insulated compressor takes in air at 60 degrees Fahrenheit, 14.2 lbf/in^2, Determine the compressor power
An outfielder throws a 0.150 kg baseball at a speed of 54.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion
A ball is thrown straight upwith an initial velocity v0=4.9 m/s. Assume that the acceleration due to gravity is g=9.8 m/s^2 downward. How long does it take to come back to its inital position
Two 8.0mm×8.0mm electrodes with a0.10-mm-thick sheet of Mylar between them are attached to a 9.0V battery. What is the charge before and after the Mylar is withdrawn
Miller Corporation has a premium bond making semiannual payments. The bond pays a coupon of 12 percent has a YTM of 10 percent, and has 12 years to maturity. The Modigliani Company has a discount bo