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A car travels east at 87 km/h for 1.4 h. It then travels30.0° east of north at 107 km/h for 0.8 h.
(a) What is the average speed for the trip?
(b) What is the average velocity for the trip?
an elevator cabin mass 530 kg is designed for a maximum load of 3300 kg and to reach a velocity of 3.5 ms in 3 s. for
1 a piece of aluminum of mass .2kg at temperature .2kg at temperature 20c is placed in beaker containing 1.5 kg of
A coaxial cable consists of a cylindrical metal sheath of radius b=3.5cm surrounding a conducting wire with outer radius a=.6cm
A potential energy function for a two-dimensional force is of the form U = 3.89x3 y - 5.96x. Calculate the force that acts at the point (1.28m,1.17m). Enter the x-component first and then the y-component.
A vector has an x component of -24.0 units and a y component of 36.4 units. Find the magnitude and direction of this vector
one of your summer lunar space camp activities is to launch a 1130-kg rocket from the surface of the moon. you are a
a 1000 kg elevator is being lifted vertically upward by a strong cable.a what does the elevator weigh?b if the cable
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
A 5.57-kg object passes through the origin at time t = 0 such that its x component of velocity is 4.95 m/s and its y component of velocity is -2.94m/s. What is the kinetic energy of the object at this time
Two conductors are made of the same material and have the same length L. Conductor A is a hollow tube with inside diameter 1.05 mm and outside diameter 2.71 mm; conductor B is a solid wire with radius RB.
A light, flexible cable is wrapped around a solid cylinder with mass 3.5 kg and radius 0.8 meters.
A rock is thrown from the roof of a building with a velocity vo and an angle of alpha(o) from the horizontal, Calculate the magnitude of the velocity of the rock just before it strikes the ground
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