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In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 4.0 at an angle of 24 above the horizontal. It is released 0.80 above the floor. Wha
A coal-fired electric power plant has an overall efficiency of 28% and an output of 1,845 megawatts. How many tera joules (trillions of joules) of waste heat does it reject to the environment each d
How are the final potentials V1 and V2 of the spheres related? Find the final charges q1 and q2. q1? q2? What is the ratio of the final surface charge density of sphere 1 to that of sphere 2?
A 20-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10 s is required for the package to travel 5 m up the incline. The static and kinetic coeffi
A damped harmonic oscillator consists of a block (m = 2.00 kg), a spring (k = 10.0 N/m), and a damping force the is linearly proportional to the velocity. Initially, it oscillates with an amplitude
Two sound waves, from two different sources with the same frequency, 508 Hz, travel in the same direction at 347 m/s. The sources are in phase. What is the magnitude of the phase difference of the w
If this heat engine and the Carnot engine do the same amount of work, what is the ratio Qh/[Qh(carnot)]?
An electron is traveling horizontally toward the north in a uniform magnetic field that is directed vertically downward. In what direction does the magnetic force act on the electron? upward south n
A batter hits a baseball 2.25 ft above the ground towards 3rd base. If the ball takes 0.65 s to get to the 3rd baseman (who is 95 ft from homeplate) and it passes just above the jumping 3rd baseman'
When we use the digital multi-meter (DMM) to measure the resistance, a current is sent through the component we are trying to measure. But if there is a current, why is the light bulb not lit when w
A proton moving at 6.40 106 m/s through a magnetic field of magnitude 1.80 T experiences a magnetic force of magnitude 7.00 10-13 N. What is the angle between the proton's velocity and the field? (E
A long solenoid that has 1,020 turns uniformly distributed over a length of 0.395 m produces a magnetic field of magnitude 1.00 x 10-4 T at its center. What current is required in the windings for th
If the current through the rod is 2.55 A, find the magnitude of the magnetic force on the rod and What is the direction of the magnetic force on the rod?
Crossed electric and magnetic fields are established over a certain region. The magnetic field is 0.671 T vertically downward. The electric field is 2.06 x 106 V/m horizontally east.
What is the magnitude of the force with which the 63 kg sprinter pushes against the starting block? only those who will show the work clearly will get the extra bonus points.
You have only just started your interrogation of the financial staff in the cartel's office on the 20th floor of a high rise on Sukumvit road when the calm is disturbed by the sound of breaking glas
What is the net force (Fnet) acting on the boat? How many N how many degrees north of east?
Two point charges are placed along the horizontal axis with the following values: 3.0 µC at x=0 and -7.0 µC at x=20 cm. At what point along the x axis is the electric field zero?
The wheel slows down uniformly at until the wheel stops. In this situation, the average angular acceleration in the time interval from to s is closest to:
What is the electric potential at the center C of the circle? What is the electric potential at point P, which is on the central axis of the circle at distance D = 6.71 cm from the center?
There is a pipe that is 120 inches in length and 12 inches in diameter and with a pressure of 10 psi air is pushed through the pipe. How would I calculate the air flow rate per second with the infor
A projectile is fired at an upward angle of 40.0 degrees from the top of a 165m cliff with a speed of 195 m/s . What will be its speed when it strikes the ground below? (Use conservation of energy a
Three particles are fixed on an x axis. Particle 1 of charge q1 is at x = -a and particle 2 of charge q2 is at x = +a. If their net electrostatic force on particle 3 of charge Q is to be zero, what
If it actually hits the ground with a speed of 9.00 , what is the magnitude of the average force of air resistance exerted on it?
Eventually, the object comes to a momentary halt at a point where the string makes an angle ? With its initial vertical orientation and then swings back downward. Find the angle ?