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If this fish is moving upward at 3.00 m/s as its head first breaks the surface and has an upward speed of 7.10 m/s after two-thirds of its length has left the surface, assume constant acceleration a
Two horizontal forces, F1 and F2, are acting on a box. F2 can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface.
What is the mass of the spaceship and the acceleration due to gravity at the surface of Planet X? Assume that the acceleration due to gravity is constant.
A football punter accelerates a football from rest to a speed of 11 m/s during the time in which his toe is in contact with the ball (about 0.18 s). If the football has a mass of 0.50 kg, what aver
How many times does the ball swing around each minute?
What is the change in temperature of the gas due to the removal of the energy?
A flash unit for a camera has a capacitance of 1155 µF. What resistance is needed in this RC circuit if the flash is to charge to 94% of its full charge in 21.4 s? In kilometer Ohms.
At what distance along the central axis of a uniformly charged plastic disk of radius R = 0.110 m is the magnitude of the electric field equal to 1/5 times the magnitude of the field at the center o
Coefficient of linear expansion for brass .Ignore any effects that might occur due to change in the thickness of the slits. (Hint: Since thermal expansion normally produces very small changes in len
Two concentric metallic shells (conductors) have radii R and 2R, respectively. A charge q is placed on the inner shell, and a charge ?2q is placed on the outer shell. What are the electric fields in
The elastic energy stored in a stretched bungie cord is found to be 568 J. The the bungie cord is stretched 0.349 m, find the elastic force exerted by the bungie cord on the external force. Don't fo
The desired capacitance is 0.300 µF, and the capacitor must withstand a maximum potential difference of 4.00 kV. Find the minimum area of the capacitor plates.
A circular metal plate of radius 0.2m has 10^10 excess electrons uniformly distributed over its surfaces. What is the magnitude AND direction of the field just outside the plate near its center?
If your pupil diameter is 2.0 mm, as it would be in fairly bright light, what is the smallest diameter circle that you can barely see as a circle, rather than just a dot, if the circle is at your ne
How does the electrostatic potential energy of a system of two positive point charges change when the distance between them is tripled? it is unchanged, it is reduced to one-ninth its original value
The position of a water balloon from a 100m high cliff is given by r(t) = [3ti + t^2j + sin(3.14t/2)k]m. Find the location, velocity, acceleration, as well as the distance the balloon is away from t
The gas is held at constant pressure as the energy is removed. What is the change in temperature of the gas due to the removal of the energy? Give your answer in Kelvin to three significant digits.
An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed of the electron when it is 10.0cm from charge
A pair of slits is located near a screen in such a way that light incident on the slits can form a double slit interference pattern on the screen.
A 2.1mm -diameter glass bead is positively charged. The potential difference between a point 2.5mm from the bead and a point 4.5 mm from the bead is 500 V. What is the charge on the bead?
An electron (mass 9.11 x 10-31 kg, charge 1.6x10-19 C) is placed half-way between the charges. What is the electrical field at this point? What is the force on this electron?
An electron and a proton are separately placed at rest midway between two oppositely charged metal plates. Which particle, if either, will acquire more kinetic energy just before striking a plate? W
Determine the temperature at which a significant fraction of an ensemble of molecules populates the v=1 level at thermal equilibrium. Hint: as a first step calculate the characteristic vibrational t
If the mass of the first particle is 5.5 x 10-7 kg, what are (a) the mass of the second particle and (b) the magnitude of the charge (in C) of each particle?