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A 357-g object is attached to a spring and executes simple harmonic motion with a period of 0.220 s. If the total energy of the system is 4.79 J, find the following. (a) the maximum speed of the object m/s (b) the force constant of the spring N/m (c) the amplitude of the motion m
A large steam pipe is covered with 1.3-cm-thick insulating material of thermal conductivity 0.25 J/(s m °C). How much energy is lost every second
At a given point above the surface of Earth, the gravitational acceleration is equal to 7.8 m/s2. At what speed could a satellite be in orbit at this point
Interpretation of Distance-time Graph 1. Which car is ahead and by how much distance after 3 hours? 2. Which car stops moving after 3 hours?
A person stands at a point,241 min front of the face of a sheer cliff. If the person shouts, how much time will elapse before an echo is heard
A charged isolated metal sphere of diameter 13 cm has a potential of 9800 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere.
A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.0 cm below the aim point. What was the bullet's speed as it left the barrel
An extension cord made of two wires of diameter 0.129 {rm cm} (no. 16 copper wire) and of length 1.5 m (5 ft) is connected to an electric heater which draws 13.5 A on a 120-{rm V} line. How much power is dissipated in the cord.
Two capacitors are connected in series. Let 3.40mF be the capacitance of first capacitor, Calculate the potential difference across each capacitor
Suppose after charging a 10.9 µF capacitor to 8 V, What voltage will your voltmeter read across those two capacitors connected in parallel
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. How much time is required for the projectile to come up to speed
You observe that the hammer hangs at rest with respect to the bus when the angle between the rope and the ceiling of the bus is 79. Illustrate what is the acceleration of the bus?
At 20.0°C, a mainly silicon resistor has a resistance of 275 ?, and a tungsten resistor has a resistance of 752 ?. At what temperature will their resistances be equal
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