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Solve the all parts of given question:
Question: A certain capacitor stores 40 mJ of energy when charged to 90 V.
Part A: How much would it store when charged to 35 V?
Answer = _____ mJ
Part B: What is its capacitance?
Answer= _____ µF
Please explain each step and equations used.
An empty elevator has a mass of 365.2 kg, and the people inside have a total mass of 172.1 kg. What is the net force on the elevator
A spring has a spring stiffness constant, K, of 430 N/m. Find how much must this spring be stretched to store 50 Joule of potential energy
Given three containers all the identical temperature, one filled with a gas of classical molecules, one with a fermions gas, Find which will have the lowest pressure
A cork floating on a lake bobs up and down as a small wave passes. The cork completes 4.00 cycles in 4.00 s. The wave peaks are 8.1 cm apart. Discover the speed of the wave.
A math instructor's dead body (m= 80 kg ) is dragged across the ground with 30o and 500 N force by an angry student. The coefficient of friction among the lifeless body and the ground is µk = 0.60 What is the acceleration of the dead body?
A 44 kg women is in a 62 kg, 5 m long boat that is initially at rest. She walks from a spot 1.00 m from one end to a spot 1.00 m from the other end. how fast was the boat moving while she was walking
Suppose a spherical planet of radius R and an average density 5.0 x 103 kg/m3; this is approximately the average density of earth. Evaluate what is the radius of the planet
When you take a bath, how many kilograms of hot water (51°C) should you mix with cold water (12°C) so that the temperature of the bath is 36°C? The total mass of water (hot plus cold) is 189 kg. Ignore any heat flow among the water and its external s..
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.57 g and a charge of magnitude q. Find the magnitude of the electric force acting on the ball
An object of mass 3m0 moves to the right at 0.8c. Calculate its momentum and energy
A particle with a charge of -60.0 nC is placed at the center of a non conducting spherical shell of inner radius 20.0 cm and outer radius 40.0 cm. Calculate the speed of the proton
a pair of parallel conducting rails is separated by 55.0 cm. they are joined at one end by a circuit component
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