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Two blocks are free to slide along the frictionless wooden track shown below. The block of mass m1 = 4.93 kg is released from the position shown, at height h = 5.00 m above the flat part of the track...

Joe wishes to hang a sign weighing 950 N so that cable A attached to the store makes a 30 degree angle with the wall. Cable B is horizontal and attach to an adjoining building. What is the tension...

In a slow-pitch softball game, a 0.200-kg softball crosses the plate at 20.0 m/s at an angle of 40.0° below the horizontal. The batter hits the ball toward center field, giving it a velocity of 44...

Our sun orbits around the centre of our galaxy (the Milky Way) once every 2.5 x 108 years. The radius of the sun’s orbit about the centre of the galaxy is approximately 3.15 x 1020 m. The sun has...

A mass is being pulled up an incline plane. The angle of the incline plane is 33 degrees. The mass is 11 kg and the pulling force is 185 N at an angle of 25 degrees to the plane. The coefficient of...

A force of 75N due north and 105N due east is acting on a point .

A 60.0kg person climbing a ladder to the moon. a) Use EP = mgh to find your solution. Show all work. b) Use EP = -GMm/r . Show all work. c) Why do both methods disagree...

A 0.066 kg egg is thrown at a sheet with a velocity of 20.9 m/s. The maximum force that the egg can experience without breaking is 22.4 N. What is the shortest stopping time the sheet can impart...

Anissa rides her snowboard down a hill sloped at 25 degrees. The coefficient of kinetic friction between her snowboard and the snow is 0.15. If Anissa's mass is 55 kg, how fast is she going 7 seconds...

A 67.5 kg girl runs at 5.2 m/s and jumps onto a 2.3 kg stationary skateboard. Ignore friction and calculate the final speed of the girl. Give your answer with one decimal. thank...

The blocks A and B are connected by a piece of string. Block B rests on an inclined plane of 36 degrees and block a hangs vertically. The coefficient of friction between Block B and the inclined plane...

An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18 m/s northward and the air speed of the plane is 161 m/s, in what direction should the plane head to reach...

For orbiting satellites, the mass of the satellite always cancels in our centripetal force equation. Use the equation to justify why it is the satellite’s mass, and not the mass of the central planet,...

You need to move a 53 kg armoire across the room. If you push with a force of 68 N, and the armoire accelerates at 0.10 m/s2 squared, what is the coefficient of friction of the carpet?

a)When a periodic wave excites a medium explain why the particles in the medium can have both velocity and acceleration? (4 marks) b) What is the phase relationship between...

Vector A has magnitude 58 units and is inclined to the positive axis of x at 42 degrees. Vector B has magnitude 36 units and is inclined to the positive axis of x at 121 degrees. Vector C has magnitude...

A particle in shm has a time period of 4s. It takes time t1 to start from mean position and reach half of the amplitude. In another case, it takes a time t2 to start from extreme position and...

For orbiting satellites, the mass of the satellite always cancels in our centripetal force equation. Use the equation to justify why it is the satellite’s mass, and not the mass of the central planet,...

Two tuning forks vibrate at frequencies f1 and f2 respectively (f1 ≠ f2) and produce sound waves of equal amplitude. Describe how the sound intensity heard by an observer varies and explain, with...

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