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The tuner of a radio circuit is formed by a resistance of 400 ohms, a 0.5 mH coil and a variable capacitor. If the capacitor is set to 72 pF. Calculate the total impedance of the circuit if the freq
Question: An object is 13 cm in front of a diverging lens with a focal length of 15 cm. Use ray tracing to determine the location of the image.
The car is held by a cable attached 24 in. from the track. Determine the tension in the cable and the reaction at each pair of wheels.
A long solenoid has a length of 0.56 m and contains 1540 turns of wire. There is a current of 6.0 A in the wire. What is the magnitude of the magnetic field within the solenoid?
A student throws a set of keys vertically upward to her sorority sister, who is in a window 2.50 m above. The second student catches the keys 2.00 s later. (a) With what initial velocity were the ke
A truck covers 42.0 m in 8.00 s while smoothly slowing down to final speed of 2.50 m/s. (a) Find its original speed.
If the ball is in contact with the wall for 3.15 ms, what is the magnitude of the average acceleration of the ball during this time interval?
A particle moves according to the equation x = 8t2, where x is in meters and t is in seconds. (a) Find the average velocity for the time interval from 1.80 s to 2.95 s. m/s (b) Find the average velo
Suppose a trucks mass is 2000 kg, while the car's mass is 1000kg. And suppose the truck slows down by 5 m/s during the collision. How much speed does the car gain during the collision?
A gasoline engine absorbs 8320 J of heat at 289C and expels 7820 J at a temperature of 89C. Find the change in entropy for the system.
If the frictional force experienced by the block, is 8 N, the acceleration of the block is > ? < m/s2. Calculate your answer to one decimal point.
Students in a fraternity house want to be able to spray water 25 m across their neighbor's yard onto a patio. They have a hose of inside diameter 1.2 cm that can spray a distance of only 1 m. What s
A rocket of mass 4.5 x 10^5 kg is in flight. Its thrust is directed at an angle of 53.0° above the horizontal and has a magnitude of 8.20 x10^6 N. Find the magnitude and direction of the rockets
If the surface area of the bottom of the barge is 220 m^2, what is the weight of the load in the barge? Answer in units of Pa and N. Please show work.
Find the coefficient of static and kinetic friction between the crate and the floor. The acceleration of gravity is 9.8 m/s^2. Please show work.
Calculate the change in entropy of the water. (Assume that the specific heat of water is constant at 4190 , and ignore the heat that flows into the ceramic coffee cup itself.)
An amusement park ride is designed such that riders experiance a total magnitude of no more than 30m/ss acceleration. Consider the radial and transverse components due to the ride as well as gravity
A parallel-plate capacitor has capacitance 9.50µF. (a) How much energy is stored in the capacitor if it is connected to a24.00V battery?
A parallel-plate capacitor with area0.300m2and plate separation of2.00mm is connected to a 21.00-V battery. (a) What is the capacitance? (b) How much charge is stored on the plates?
Calculate the magnetic force on one of these poles, 6.09 m long, when it transmits an upward current of 2.16 x 104 A during a lightning discharge.
If an electric field strength greater than 3.0 x 106 N/C causes the air to break down and conduct charge (lightning), what is the maximum charge the cloud can hold?
A proton is located at the origin, and a second proton is located on the x-axis at x = 6.78 fm (1 fm = 10-15 m). (a) Calculate the electric potential energy associated with this configuration.
Calculate the average velocity in unit-vector notation of the car for the entire trip.
A car is moving with constant velocity v, and has wheels of radius R. The car drives over a clump of mud and the mud with mass m sticks to the wheel with an adhesive force of f perpendicular to the
A 406.0 kg copper bar is put into a smelter for melting. The initial temperature of the copper is 300.0 K. How much heat must the smelter produce to completely melt the copper bar? (The specific hea