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Find what is the minimum work needed to push a 950 kilogram car 810 meter up along a 9 degree incline? Neglect friction.
A spaceship ferrying workers to Moon Base I takes a straight-linepath from the earth to the moon, a distance of about 384,000 km. What is the maximum speed attained
A jumper in the long-jump goes into the jump with a speed of 12m/s at an angle of 20 deg above the horizontal. How long is the jumper in the air
Two wheels have the same mass and radius of 5.0 kg and 0.39 m,respectively. Find the net external torque thatacts on each wheel
115 g of glass beads, originally at a temperature of 75.0 oC, are added to 85.0 g of ethyl alcohol which is at a temperature of -50.0 oC. find the temperature of the mixture when thermal equilibrium is reached
A concave spherical mirror has a radius of curvature of magnitude 27.4 cm. determine Is the image real or virtual
Each of the three helicopter rotor blades shown in Fig. 10-67 is5.20 m long and has a mass of 153 kg. The rotor is rotating at 202rev/min. (a) What is the rotational inertia of the rotor assembly about the axis of rotation
the work being performed in this lab serves to solidify our understanding of how a magnetic field around a ring behaves
a billiard ball ,moving at 75cm/s hits an identical ball initially at rest and glances off at 75degrees to the original direction with a speed of 30 cm/s
q1. a 1.00-kg teflon disk is slid down a 5.00-m steel plate that is mounted at a 30 degree angle with respect to
A skid mark has length 25 m. You measure the coefficient of friction between the tire and road as 0.50. determine the initial speed of the car
A spring with constant k = 78 N/m is at the base of a frictionless, 30.0o inclined plane. calculate how far up the incline will it travel before it stops
if a negatively charged particle enters a region of uniform magnetic field which is perpendicular to the particles
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