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A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.27 kg, and the wedge has a mass of 5.31 kg. what is the velocity of the ball after the collision
2 positive charges each is 4 micro C located at the positions (0,0) and (20,0) and all coordinates are in cm, calculate the electric field due to the two charges
a massive particle, rest mass M absorbs a photon. The inertial mass increases to 1.05 M. Determine the energy of the incoming photon
A beam of 16MeV deuterons (m=2mp) from a cyclotron falls on a copper block. The beam is equivalent to a current of 15 microA. At what rate is thermal energy produced in the block
A satellite has a mass of 5825 kg and is in a circular orbit 4.34 × 105 m above the surface of a planet. What would be the true weight of the satellite if it were at rest on the planet's surface
Determine the kinetic energy of the proton moving in the labarotory towards a stationary electron so that a neutron is the only final particle
A velodrome track is banked so that a bicycle traveling at 78.2 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 76.0 m
he Sun has an orbital speed of about 220 km/s around the centre of the Galaxy, Estimate the total mass of the Galaxy in Solar masses
Te orbit of an asteroid extends from Earths to Jupiter's, just touching both. Find the maximum and minimum orbital speeds of the asteroid
The orbits of synchronous communications satellites have been chosen so that viewed from Earth they appear to be stationary. Find the radius of the orbits
Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. what force does the seat belt exert on
A skateboarder, with an initial speed of 5.0 m/s, rolls virtually friction free down a straight incline of length 19 m in 3.3 s. What is the angle of the incline
a block of mass m = 2.50 kg is pushed a distance of d = 2.20 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle of 25.0 degrees below th
Two satellites, A and B, are in different circular orbits about the earth. Find the ratio (TA/TB) of the periods of the satellites
It is proposed that future space stations create an artificial gravity by rotating. What rotation period will provide "normal" gravity
If the magnitude of the drift velocity of free electrons in a copper wire is 9.12 10-4 m/s, what is the electric field in the conductor
The quantity of charge q (in coulombs) that has passed through a surface of area 1.95 cm2 varies with time according to the equation q = 5t3 + 5t + 6, What is the value of the current density
Sarge quickly approximates the rope to be a string with a very high spring constant. What is the speed of wave propagation on the rope
Two 5.0-cm-diameter metal disks separated by a0.61-mm-thick piece of Pyrex glass are charged to a potential difference of 1300V. What is the surface charge density on the glass
A snowboarder starts from rest rides 30.31m down a snow covered slope that makes an angle of 34.19 degrees with the horizontal, How far will she travel along the flat snow
A child leaves her book bag on a slide. The bag, which is at the top of the slide, starts from rest and reaches the bottom in 1.40 s. What is the friction force acting on the bag
Two 8.0mm×8.0mm electrodes with a0.10-mm-thick sheet of Mylar between them are attached to a 9.0V battery. find the electric field before and after the Mylar is withdrawn
A rifel with a barrel length of 63cm fires a bullet with a horizontal speed of 380m/s. How long does it take for the bullet to come to rest after entering the wood
A stone is thrown straight up with a speed of 25.0 m/s from the top of a building 55.0 m tall. How far above the ground will the stone go
A 4.50 kg package slides 1.30 m down a long ramp that is inclined at 10.8° below the horizontal. Calculate the work done on the package by gravity