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Problem: A camera is equipped with a lens with a focal length of 39 cm. When an object 1.0 m (100 cm) away is being photographed,
Part A: What is the magnification?
Show all work, use additional paper if necessary for above problem.
a person looking out the window of a stationary train noticesthat raindrops are falling vertially down at a speed of 6.59 m/srelative to the ground. How fast is the train moving
a 11 cm long metal rod pulled along two frictionless conducting rails at a constant speed of 1.7 ms. the rails have
A student in an undergraduate physics lab is studying Archimede\'s principle of bouyancy. The student is given a brass cylinder and using a triple beam balance finds the mass to be 2.72 kg. calculate the volume of the cylinder
An airplane is traveling parallel to the ground in a region where the Earth%u2019s magnetic field is oriented perpendicular to the ground. What is the resulting voltage difference between the ends of each wing
A boy is attempting to swim directly across a river; he is able to swim at a speed of 0.421 m/s relative to the water. The river is 2.48 m wide and the boy ends up at 4.77 m downstream from his starting point.
You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7N. What is the magnitude of the force that Earth exerts on the bag.
An electron traveling at 15 m/s enter a 2.1 T magnetic field. The angle between the velocity and the field is 100 degree. Estimate the radius of the resulting circular path
A small particle of mass 0.225kg is moving on a circle of radius 2m. Find the angular momentum of the particle when its speed is 8m/s
A uniform magnetic field of 1.5 T points due north. A proton is moving die west in this field at the speed of 2.0 x 107 m/s. Obtain the magnitude and direction of the magnetic force on the proton
A 2.0kg ball and a 4.5kg ball, each moving at 0.90m/s , undergo a head-on collision. How much mechanical energy was lost in this collision
A (smooth) rope of length L and mass m is placed above a hole in a table. One end of the rope falls through the hole, Find the mechanical energy lost from the rope as the end of the rope leaves the table
Four equal masses m=0.5kg are placed on the corners of a square ofnegligible mass, whose sides are 0.4m long. What is the kinetic energy of the system
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