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A satellite of mass 300Kg is circuling around the Moon. ifsatellite's velocity is 150 miles per hour, determine the radius of the orbit.
A solid sphere with mass m = 1.5 kg a radius r = 0.20 m rolls without slipping on a flat surface with an angular velocity of ? = 7.2 rad/s. What is the total kinetic energy of the sphere
A skier of mass 64 kg is being towed up a slope ( µ = 15 ±) by a towrope at a constant speed of 3 m/s, what is the force (in N) that the towrope applies to the skier
A washer is constructed from soft steel (density p = 7.9•10^3 kg/m^3). Its inside and outside dimensions are 2.00 cm and 3.30 cm, and it's thickness is 0.50 cm.
a 0.346kg glider moves along a frictionless level air track tugged by a mass of 0.050kg suspended vertically over a pulley
Two charges are placed on the x axis. One of the charges (q1 = +6.95C) is at x1 = +3.00 cm and the other (q2 = -27.3C) is at x2 = +9.00 cm. Find out the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b..
The magnitude of the electrostatic force between two identical ions of mass 4.760×10-26 kg that are separated by a distance of 8.20 nm is 1.682×10-10 N. What is the charge of each ion
A circus clown weighs 900 N. The coefficient of static friction between the clown's feet and the ground is 0.4. What is the minimum pulling force that the clown must exert to yank his feet out from under himself
An insulated thermos contains 138.0 cm3 of hot coffee at a temperature of 80.0 °C. You put in 11.0 g of ice cube at its melting point to cool the coffee. What is the temperature of the coffee once the ice has melted and the system is in thermal eq..
The nucleus 60Co decays by the emission of an electron ( B 2). (Energetic gamma rays also accompany this decay and are used for the treatment of cancer.) What is the resulting nucleus
A heavy ball with a weight of 100N (m= 10.2 kg) is hung from the ceiling of a lecture hall on a 4.5-m-long rope. What is the tension in the rope at that point
A spring-loaded pellet gun is designed to fire 3.40 g projectiles horizontally at a speed of 39.0 m/s. What maximum force is required to load the gun
A toaster uses a Nichrome heating wire. When the toaster is turned on at 20° C, the initial current is1.50 A. A few seconds later, the toaster warms up and the currentnow has a value of 1.24 A. The averagetemperature coefficient of resistivity for..
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