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Starting from rest, a 2.2x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.35 N on it. This force does 1.7x10-4 J of work on the flea.
(a) What is the flea's speed when it leaves the ground?
(b) How far upward does the flea move while it is pushing off? Ignore both air resistance and the flea's weight.
A generator consists of one thousand loops of wire, each enclosing an area 90.cm^2, rotating 50. times per second in a uniform field of 0.15T. Determine the value of effectvie output voltage
A certain light source is found to emit radiation whose peak value has a frequency of 8.28 Ã- 1014 Hz. Find the temperature of the source
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 50.0 degrees. find the angle the resultant force makes with the rope of dog A
A loudspeaker of mass 25 is suspended a distance of = 1.60 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.30.
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 33km2. What mass of water (in kg) fell on town? One cubic meter of water has a mass of 103kg.
A technician wraps wire around a tube of length 37 cm having a diameter of 8.3 cm. If the current in this solenoid increases at the rate of 2 A/s, what is the self-induced emf in the solenoid
After falling from rest from a height of 26 m, a 0.5 kg ball rebounds upward, reaching a height of 16 m. If the contact between ball and ground lasted 1.6 ms, Evaluate average force was exerted on the ball?
How much heat does it take to enhance the temperature of 8.00 of an ideal monatomic gas from 22.0 to 61.0 if the gas is held at constant volume.
A horizontal mass-spring system has low friction, spring stiffness 250 N/m, and mass 0.370 kg. The system is released with an initial compression of the spring of 10.8 cm, What is the maximum speed during the motion
a 100v dc battery, a resistor and a capacitor are connected in series. The capacitor is initially uncharged. estimate the capacitance of the capacitor
A rattlesnake can strike with the acceleration equivalent to an increase in speed from 0 to 60 mi/h in 1/2 s. If the rattlesnake's head weighs 0.33 lb, what average power does the rattlesnake generate throughout its strike.
What is the mass of the liquid in the vat.
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