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A hunter aims directly at a target (on the same level) 160 m away, If the bullet leaves the gun at a speed of 260 m/s, by how much will it miss the target
An elevator and its load have a combined mass of 1450 kg, Find the tension in the supporting cable when the elevator, originally moving downward at 11 m/s
Two 1.5cm -diameter disks face each other, 2.0mm apar, What launch speed must the proton have to just barely reach the positive disk
A block is attached to a ceiling by a spring of force constant k. When pulled down and released, what is the force constant k of the spring
The hydrogen bomb detonated in 1954 had an explosive power equal to about 15 megatons of TNT, How many times more explosive was the hydrogen bomb
The temperature inside the refrigerator is 2.0 °C. It stands in a kitchen whose temperature is 22 °C, what is the entropy change of the kitchen
A simple pendulum on the surface of Earth is found to undergo 13.0 complete small-amplitude oscillations in 7.05 s
A particle moves horizontally in uniform circular motion, over a horizontal xy plane, What are the coordinates of the center of the circular path
Sodium Chloride gas has molecules that are ionically bonded. The Sodium end has a charge of +1e, calculate the dipole moment
A capacitor that is initially uncharged is connected in series with a resistor and a 406.7V emf source with negligible internal resistance, What is the resistance of the resistor
A satellite orbits at a distance from the Earth's center of about 4.80 Earth radii and takes 14.8 hours to go around once, What is its orbital velocity
A 125 kg satellite experiences a gravitational force by the Earth of 790 N, What is altitude of satellite and What is the radius of the satellite's orbit
Consider three capacitors having capacitances of 5.51, Find their equivalent capacitance if they are connected for both: in parallel and in series
Two point charges are located as shown in the figure, with charge q1 = +3.5 C at x = ?3.0 m, y = 0, How much work must be done on the electron to move it to the origin
To fight a fire on the fourth floor of a building, firefighters want to use a hose of diameter 6.31cm to shoot 925 liters/minute of water to a height of 11m, What pressure must t
A certain toaster has a heating element made of Nichrome resistance wire, What is the final temperature of the heating element
A 5.080 kg block of wood rests on a steel desk, State the force of friction applied to the block by the table at the following times: t=0 and t>0
Suppose you want to connect your stereo to remote speakers; it requires 20 m length of wire per speaker, how does the resistance changes
You are so tired after studying that you leave all of these household devices turned on for 13.0 hours, Calculate the cost (in dollars) of the electric bill
You and a friend are studying late at night. There are three 150 W light bulbs and a radio with an internal resistance of 79.0, How much electrical power are you using
The power supply for a pulsed nitrogen laser has a 0.0050-mF capacitor with a maximum voltage rating of 30 kV, calculate the power of the laser pulse
If an electric field strength greater than 3.88E+6 N/C causes the air to break down and conduct charge (lightning), what is the maximum charge the cloud can hold
A 2600-pF air-gap capacitor is connected to a 9.0-V battery. If a piece of Pyrex glass (K=5) is placed between the plates
A refrigerator has a coefficient of performance equal to 6.00. The refrigerator takes in 150 J of energy from a cold reservoir in each cycle, Find the work required in each cycle