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A 0.22-μF capacitor is charged by a 1.5-V battery. After being charged, the capacitor is connected to a small electric motor. Assuming 100% efficiency, (a) to what height can the motor lift a 5.0-g mass? (b) What initial voltage must the capacitor have if it is to lift a 5.0-g mass through a height of 1.0 cm?
If a 500.0g cart had its velocity change from 1.65 m/s to 1.23 m/s over a period of 2.50 seconds. Calculate and record the force acting
q1. a small metal sphere carrying a net charge of -2.70 is held in a stationary position by insulating supports. a
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 10 cm. You take the balloon in an airplane, where the pressure is 0.80 atm. If the temperature is unchanged, what's the balloon's new radius?..
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 52.5 kg and air resistance exerts a total upward force of 610 N on her and her parachute.
Let the building is 50 m tall, the initial horizontal velocity is 9.0 m/s, and the initial vertical velocity is 12.0 m/s. select your coordinates such that the positive y-axis is upward, and the x-axis is to the right, and the origin is at the poi..
Use the Gibbs-Duhem relation to solve the following problem: a gas has N = 1025 particles contained in a cubic meter at temperature T = 300 K. How much does the Gibbs free energy increase
In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.0° from a free electron that is initially at rest. Calculate the angle through which the electron scatters
A steel wire of length 1.97m with circular cross section must stretch no more than 0.270cm, What minimum diameter dmin is required for the wire
A fighter jet is launched from an aircraft carrier with theaid of its own engines and a steam-powered catapult. Thethrust of its engines is 2.3x105N. What is the work done on the jet by the catapult
A lamp (R = 148 ), an electric heater (R = 23 ), and a fan (R = 48 ) are connected in parallel across a 117 V line. What is the voltage across the fan
two objects of unequal mass hung vertically over frictionless pulley of negligible mass. Determine the magnitude of the acceleration of the two objects
A capacitor consisting of two concentric spheresof radius R1 and R2 =3.50·R1 has a capacitance of C = 5.00 pico Faradsand is charged to a potential difference of 86.0 Volts. Calculate the energy stored in the capacitor
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