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A 26.2-kg dog is running northward at 2.89 m/s, while a 5.30-kg cat is running eastward at2.77 m/s. Their 84.0-kg owner has the same momentum as the two petstaken together. Find the direction and magnitude of the owner's velocity.
question what are the directions of electric and magnetic field vectors relative to each other and relative to the
Blood pressure is normally taken on the upper arm at the level of the heart, what would be the magnitude of the difference between this measurement of blood pressure and a normal blood pressure measurement
An astronomical telescope is designed with an overall magnification of 45x. The objective has a focal length of 84.0 cm. What should be the focal length of the eyepiece
The speed of light in a certain substance is 93.1% of its value in water. For water, n = 1.33. What is the index of refraction of the substance
What is the maximum temperature and what is the (air-standard) thermal effiency?
A solid disk of radius 6.30cm and mass 1.15kg , which is rolling at a speed of 1.50m/s , How long will it take for the disk to come to a stop
A train traveling at v0 = 28.0 m/s begins to brake by applying a velocity-dependent instantaneous acceleration a(v) = ? /(v+u) m/s^2, Determine the distance traveled by the train until it comes to a complete stop
A counterweight of mass m = 4.20 kg is attached to a light cord that is wound around a pulley, compute the net torque on the system about the axle of the pulley
Two 1.7 kg masses are 1.7 m apart on a frictionless table. Each has +1.1 µC of charge. What is the initial acceleration of the mass if it is released and allowed to move
Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.450 m at the rate of 10.0 rev/s. What is the speed of the stone for each rate of rotation
The amount of heat added is 6.3 kJ, of which one-third is added at constant volume and the remainder at constant pressure. Calculate (a) the energy transfer for each of the components
a frictionless track with a loop of radius 25 cm sits on a table 0.8 meters above the ground. if a 0.3 kg object just
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