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A sign weighing 486 N is suspended at the end of a uniform rod 3.19 m long weighing 565 N. What is the tension in the support cable if it makes an angle of 33.0 deg with the support rod?
Two electrodes are placed in a calcium chloride solution and a potential difference is maintained between them. what is the current in the solution
A 55g horizontal metal bar, 15cm long, is free to slide up and down between two tall, vertical metal rods that are 15cm apart. What is the terminal speed at which the bar falls
question1a hiker makes four straight-line walks a 20 km at 274o b 12km at 48onbspc 33 km at 150onbspd 30km at 20onbspin
Use the worked example above to help you solve this problem. An object 3.08 cm high is placed 19.3 cm from a convex mirror with a focal length of 7.80 cm. Find the magnification of the mirror
The crankshaft in a race car goes from rest to 3100 rpm in 2.4s. What is the crankshaft's angular acceleration
An 8.66g bullet is fired into a 260g block that is initially at rest at the edge of a table of h = 1.07 m height, What is the initial horizontal velocity of the block as it flies off the table
An 18-year-old runner can complete a 10.0-km course with an average speed of 4.80 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner
A railroad engine weighs three times as much as a freight car. If the engine coasts at 9 km per hour into a freight car that is initially at rest
An astronaut travels to the nearest start system. 10 light years away, and returns at a speed of 0.5c. How much has the astronaut aged relative to those people remaining on Earth?
A friend buys a used pickup truck that comes complete with a CB radio. However, the antenna is broken off, How long should you make the rod
A particle with a charge of +8.4 µC and a speed of 45 m/s enters a uniform magnetic field whose magnitude is 0.32 T. find the magnitude and direction of the magnetic force on the particle
A cockroach crawls with a constant speed on a phonograph turntable that is rotating with angular velocity ?. If the bug moves at constant speed away from the center of the turntable draw all forces acting on the bug (in the bug's frame).(b) Now sa..
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