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A 2.4 g marble is fired vertically upward using a spring gun. The spring must be compressed 8.0 cm if the marble is to just reach a target 20 m above the marble's position on the compressed spring. (a) What is the change ?Ug in the gravitational potential energy of the marble-Earth system during the 20 m ascent? (b) What is the change ?Us in the elastic potential energy of the spring during its launch of the marble? (c) What is the spring constant of the spring?
A parallel-plate capacitor has circular plates of 9.27 cm radius and 1.79 mm separation. Calculate the capacitance in picofarads (pF)
The cohesive energy of a sodium chloride crystal is 6eV per ion pair, Neglecting the energy of repulsion, estimate the interionic spacing
In the two-slit experiment, the distance between the slits and the screen is 1.10 m and the distance between the slits is 0.100 mm. what is the wavelength of light
An Electromagnetic Car Alarm, Your latest invention is a car alarm that produces sound at a particularly annoying frequency of 3500Hz. What value of inductance should you choose for your car alarm circuit
When a resistor is connected across the terminals of an ac generator (104 V) that has a fixed frequency, there is a current of 0.545 A in the resistor. determine the impedance of the series combination
The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.3 m before coming to rest. If the coefficient of friction between the block and the floor is 0.40, Elucidate what is the mass of the block?
The arm in Coulomb's torsion balance was a rod with a charged ball at one end and a counterweight on the other. what is the torque exerted on the balance arm
A tire 0.300 m in radius rotates at a constant rate of 210 rev/min. What is the acceleration of the stone
q1. a 3000-kg blue truck travelling east collides and sticks to a 4000-kg orange truck travelling with a speed of 7.3
An ambulance is generating a siren sound at a frequency of 2400 Hz. The velocity of sound is 34.0 m/s. What is the frequency of the siren perceived by the observer
A weather balloon rises by the atmosphere, its volume expanding from 4.4m^3 to 10m^3 as temperature drops from 17 Degrees C to -13Degrees C.
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
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