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A 0.427 kg mass is attached to a spring with a force constant of 25.3 N/m and released from rest a distance of 3.07 cm from the equilibrium position of the spring. Calculate the speed of the mass when it is halfway to the equilibrium position.
Three resistors, 2.57ohm, 2.51ohm, and 4.45ohm, are connected in series across a 24.4-V battery
At the local playground a child on a swing has a speed of 2.02 m/s when the swing is at its lowest point. (a) To what maximum vertical height does the child rise, assuming he sits still and "coasts"? Ignore air resistance. (b) How do your results cha..
A head-on, elastic collision between two particles with equal initial speed vleaves the more massive particle (massm1) at rest. Find the ratio of the particle masses
A 55-kW radio station broadcasts its signal uniformly in all directions. What is the average intensity of its signal at a distance of 250 m from the antenna
A lead pellet with a mass of 0.519 g is shot from an air gun at a speed of 118 m/s. It is stopped by a boulder. What is the temperature change of the bullet
q1. a person eats a dessert that contains 220 calories. this calorie unit with a capital c is the one used by
Calculate the mass flow rate (in grams per second) of blood (Ï = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 47 cm/s
Imagine that we define the rear end of a train 120 m long to long to define the origin X'=0 in the train frame and we define a certain track signal light to define the origin X=0 in the track frame. Where does this event occur in the train frame
A policeman on a motorcycle is stopped at a speed trap. A car is moving at a constant velocity of 100 mph along a straight stretch of road as he passes the policeman at a constant rate of 3 m/s each second. How long does it take the officer to catc..
Omega resistor using a voltmeter having an internal resistance of 10.0 Omega. Elucidate what is the potential difference does the voltmeter measure across the 5.00 Omega resistor?
A car approaches him at 100 m/s and emits a sound at frequency 1100 Hz. The air is still and the speed of sound is 340 m/s. What frequency will the pit crew member hear?
a .75 kg mass moving with a speed of 5.0 ms encounters a .25 kg mass moving in the opposite direction with speed 5.0
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