Potential across the terminals stays
A certain car battery with a 12.0 V emf has an initial charge of 178 A·h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of 118 W
Expected delivery within 24 Hours
Speedboat A negotiates a curve whose radius is 114 m. Speedboat B negotiates a curve whose radius is 192 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats?
A horizontal bar with a mass m suspended from one end is held by a cord with tension T, fastened at a distance D from the end of the bar that is attached to a wall with a frictionless pin. What is the torque about the pin exerted on the bar by the
A 18.0-V battery is connected to a capacitor, resulting in 45.0 µC of charge stored on the capacitor. How much energy is stored in the capacitor?
Electrodes called paddles are held against the chest on both sides of the heart, and the capacitor is discharged through the patient's chest. Assume an energy of 270 J is to be delivered from a 30.0-µF capacitor. To what potential difference
A certain car battery with a 12.0 V emf has an initial charge of 178 A·h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of
How much work is done by the electric field due to the sheet if a particle of charge q = +1.60 × 10-19 C is moved from the sheet to a point P at distance d = 3.56 cm from the sheet?
A 1000 kg steel beam is supported by the two ropes shown in the figure. Each rope can support a maximum sustained tension of 5600 N. Will the ropes break?
Two balls are approaching each other head-on. Their velocities are +9.60 and -10.8 m/s. Determine the velocity of the center of mass of the two balls for the following conditions. (Use the sign of your answer to indicate the direction.) (a) They h
A beam of 5 MeV electrons passes through a 300 micro-meter thick silicon detector. Estimate the energy lost by the electrons when crossing 100 micro-meter, 200 micro-meter and the full thickness of the detector.
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