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After it rolls on the horizontal surface for a short distance it collides iwth a .5 kg block, wherer it sticks (and stops rolling). What is the velocity of the combined sphere/clock system after the
The mass is then given a "kick" so that it has an initial velocity of +0.08 m/s. a) what is the amplitude of the oscillation?
On an ice rink, a 3 kg object initially moving a speed of 5 m/s, strikes a 6 kg object initially at rest. Afterwards, the first object moves off with a speed of 2.75 m/s in a direction 80 degreesfr
what are the normal and static frictional forces on the bar at the end thouching the wall?
The initial velocity of the clay is 22.5 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
A space station in the form of a large wheel, 77.2 m in diameter, rotates to provide an "artifical gravity" of 5.1 m/s^2 for people located on the outer rim. What is the fequencey of the rotational
The second solenoid is 200 circular loops of wire with a diameter of 6.0 cm encircling the smaller solenoid. The current in the inner solenoid is turned on so that it goes from 0 to 500 mA in two se
A photon absorbed by an electron will give up more energy to the electron if the photon:
How fast would you have to spin a single circular loop with a radius of 1cm to get the same voltage?
Two objects attract each other with a gravitational force of magnitude 9.2*10^-9 N when separated by 19.8cm. If the total mass of the object is 5.09kg, what is the mass of each?
High voltage power transmission lines are made out of aluminum with a crosssectional area of about 4.4 x 10-4m^2. These lines typically carry currents of 1.3-A.
Given how telescope size scales with wavelength, what wavelength would you pick for imaging the surface features of an extrasolar earth-like planet?
At this angular speed, what is the kinetic energy of the flywheel? 2. If the average power required to operate the bus is 1.89×10^4 , how long could it operate between stops?
The magnetic field that can be obtained in a superconducting magnet is about 5T. Assume an accelerator that follows the earth's equator. What is the maximum energy to which protons can be accelerate
Light of wavelength 5.00 x 10^2 nm passes through a slit of width 0.210 mm. (a) Find the width of the central maximum on a screen located 1.40 m from the slit.
A ball of mass 0.075 kg is fired horizontally into a ballistic pendulum. the pendulum mass is 0.350kg. the ball is caught in the pendulum and the center of mass of the system rises a vertical distan
A small package is fired off Earth's surface with a speed v at a 45° angle.It reaches a maximum height h above the surface, h = 6370 km, a value equal to Earth's radius itself. What is its spee
As a particle moves from the origin to (1i + 7j) m, it is acted upon by a force given by (2i + 6j) N. Calculate the work done by this force on the particle as it moves through the given displacement
What angle(s) does a particle's velocity have to make with the magnetic field direction for the particle to be subjected to half the maximum possible magnetic force, Fmax?
Consider a square of side 44 cm. Let one corner, point P, be charge-free, while the other three of the four corners have point charges at them. The corner opposite to (and most distant from) point P
You may assume that there is no friction between the rail and the 1.5-gram "projectile." What is the direction and magnitude of the magnetic field?
One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 429 N. What is the radius of the brass ball?
The volume flow rate of the oil is 5.6 × 10-5 m3/s. The length of the pipe is 39 m, and its radius is 0.59 cm. At the output end of the pipe the pressure is atmospheric pressure. What is the
A toy balloon is filled with helium gas (He) at 1atm at 18 degrees C. If the volume of the balloon is 0.023m^3 how many atoms does it contain?
A cube of ice is taken from the freezer at -9.4°C and placed in a 100 g aluminum calorimeter filled with 308 g of water at room temperature of 20°C. The final situation is observed to be all