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An 78.3 centimeter long pendulum with a 0.516 kilogram bob is released from rest at an initial angle of θ0 with the vertical. At the bottom of the swing, the speed of the bob is 2.68 m/s. Calculate the initial angle θ0.
Find what angle does the pendulum make with the vertical when the speed of the bob is 1.34 m/s?
In an adventure movie, a 65.0-kg stunt woman falls 7.80 m and lands in a huge air bag. Her speed just before she hit the air bag was 11.1 m/s. What is the total work done on the stunt woman during the fall
The solar wind is a thin, hot gas given off by the sun. Charged particles in this gas enter the magnetic field of the earth and can experience a magnetic force.
A 300KG mass rest at the bottom of a 15 degree incline. Ms=.52 and Mk=.36, How much force is needed to start the mass moving
From the shore of a frozen lake, Eli Manning throws a 2 kg football at a velocity of 20 m/s. What is their velocity immediately after they catch it
Three resistors havin resistances of R1= 1.66?, R2= 2.44?, and R3= 4.94? respectively, are connected in parallel to a 28.2V battery that has negligible internal resistance. Find the power dissipated in each resistor
The total charge that an automobile battery can supply without being recharged is given in terms of Ampere-hours. If each of the two headlights draws 1.7 A , find out the time before your battery is "dead"
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. find the speed of the sled right before the team jumps on the sled
a rope under a tension of 280 n and fixed at both ends oscillates in a second-harmonic standing wave pattern. the
A taut rope has a mass of 0.195 kg and a length of 3.65m. What power should be supplied to the rope so as to generate sinusoidal waves having amplitude of 0.110 m and a wavelength of 0.480 m and traveling with a speed of 29.0 m/s?
An Escort and a Camaro traveling at right angles collide and stick together. The Escort has a mass of 1300 kg, What was the speed of the Camaro
You are given the task to determine the volume of an irregular shaped object. You hang it on a scale and measure its weight to be 27 N. What is the object's volume
A high intensity desk lamp is rated at 45 W and 12 Volts. It contains a transformer in its base that converts 120 V household voltage to the needed level. What is the current in the primary when the lamp is on
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