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A turntable platter spinning at 78 rev/min comes to a complete stop in 29 s. Assuming constant acceleration, through what rotation angle does the platter move as it comes to rest?
A piston (with mass M = 2.0 kg) in a car engine is in vertical simple harmonic motion with amplitude A = 5.0 cm. If the engine is running at 405.265452313 rad/s, (a) What is the maximum velocity (m/
If the illuminating source were replaced by an violet source of wavelength 420 nm, what would the minimum angle of resolution now become? (1nm= 10^-9m)
If the present lens were replaced by one with an aperture of diameter .90cm, what would the minimum angle of resolution now become? (1nm= 10^-9m)
A 1330 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1870 N crate hangs from the far end of the beam. Calculate the magnitude of the te
Between two parallel plates that are 0.02 m apart there exists a voltage of 50 V and an electric field of 2500 N/C. A proton is placed at rest near the positive plate and then released. Calculate t
What is the magnitude of the approximate magnification of a compound microscope with objective and eyepiece focal lengths of .30cm and 3.6 cm, respectively, and a separation between lenses of 20 cm?
If the mass is released from rest with the spring compressed 0.2 m, it experiences a maximum acceleration of 15 m/s2. Find the value of the mass.
A proton is fired with an initial velocity of 1.5x10^6 m/s into a uniform electric field. The proton was brought to a stop in .5 m. Calculate the acceleration of the proton. Calculate the net force
You are driving in a 1,500 kg car and have to negotiate a curve with a radius of 35 m. The coefficient of static friction between the road and the tires is 0.5 (yes, it actually is static friction h
A ball of mass 20 kg moves with a velocity of 2 m/s along the +x axis (call it ball A). It collides with a ball of mass 12 kg which is initially at rest (call it B). After the collision, ball A is m
A car of 1200 kg travels east (call it +x) at 24 m/s while a truck of 2200 kg travels north (call it +y) at 19 m/s. They collide and stick together. a. What is the momentum in the system?
A ball of mass 2.0 kg is traveling towards you at 15 m/s. You are at rest and have a mass of 70 kg. a. Assuming you catch the ball, what is your velocity after the collision?
What is the closest the asteroid can be to Earth? Does it hit Earth?If not, will it come back to Earth again?
Assuming the ball started from rest when you hit it, what is the velocity of the ball after you hit it?
Two spheres with charges of +6x10^-6 and -2x10^-6 bagin at a distance of .02 m. They touch and then seperate. Calculate the force between them after they touch.
What is the turntable's angular speed when the block reaches the outer edge of the turntable?
A person can clearly see objects only if they are located between 42 cm and 162 cm away from her eyes. Bifocal lenses are used to correct her vision. What power lens (in diopters) should be used in
A 64-turn coil with an area of 8.6x10^-3 m^2 is dropped from a position where B = 0.0 T to a new position where B = 0.22 T. The displacement occurs in 0.43 s and the area of the coil is perpendicula
Imagine that you are standing and facing a 60-W incanddescent lightbulb 100m away. if the diameter of you pupils is about 2mm, about how many protons enter your eye every second?
You need to make a series ac circuit having a resonance angular frequency of 1525 rad/s using a 138 ohm resistor, a 10.5 microfarad capacitor, and an inductor. (A) what whould be the inductance of t
A gymnast with mass m1= 46 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2= 116 kg and length L = 5 m. Each support is 1/3 of the way from each en
The other end of the string is attached to a massless axel through the center of an orange sphere on a flat horizontal surface that rolls without slipping and has mass ms= 3.3 kg and radius Rs= 0.1
In a television set the power needed to operate the picture tube is 95 W and is derived from the secondary coil of a transformer. There is a current of 5.3 mA in the secondary coil. the primary coil
A 18.0-kg cannonball is fired from a cannon with muzzle speed of850m/sat an angle of33.0°with the horizontal. A second ball is fired with the same initial speed at an angle of 90.0°. Let y=