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Initially, a particle is moving at 4.90 m/s at an angle of 35.0o above the horizontal (+x axis). Two seconds later, its velocity is 5.67m/s at an angle of 50.00 below the horizontal. What was the particle's average acceleration during these 2.00 seconds?Find x component and y component.
If a charge of 0.30 C passes through a person's chest in 1.0 s, If this rate of charge transfer persists for 4.4s, how many electrons pass through the chest
Three point masses each of mass m are connected by two thin rods each of mass M and length L. The central mass is at an origin and the z-axis is directed out of the page.
A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. The wire has radius r = 4.3 10-4 m and is made of copper having a density of ? = 8960 kg/m3. Calculate the final speed of the wire as it leaves th..
A typical electric hair dryer designed to operate at 120 -v house sold circuit is rated at 1500 W. What is the resistance of the Dryer?
A mass m = 6.9 kg hangs on the end of a massless rope L = 2.09 m long. Now a peg is placed 4/5 of the way down the pendulum's path so that when the mass falls to its vertical position it hits and wraps around the peg. How fast is the mass moving at..
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 68.80 diopters, and the lens-to-retina distance is 1.461 centimeter. Determine how far is the blackboard from her eyes
a 0.200-a current is charging a capacitor that has circular plates 10.0 cm in radius. if the plate separation is 4.00
determine the angle below the horizontal that you must aim your spear gun in order to catch dinner. Suppose the spear gun barrel is 1.70 m above the water surface, the fish is 1.40m below surface, and the spear travels in a straight line all the w..
A characteristic momentum for a particle in an ideal gas canbe found by the relationp2/(2m)=(3/2)kT wherek is Boltzmann's constant. k=1.38x10-23J/K. what is the characteristic momentum
A 2 cm long section of the patellar ligament stretches to 2.002 cm when it is subjected to a tensile force of 10,000 N. What is the strain in this segment of ligament
Two equally charged insulating balls each weigh 0.30 g and hang from a common point by identical threads 40 cm long. What is the magnitude of the charge on each ball
An object has a total energy of 5.0x10^15 J and a kinetic energy of 2.0x 10^15 J. What is the magnitude of the objects relativistic momentum
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