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A 5.00-g bullet is fired into a 900-g block of wood suspended as a ballistic pendulum. What was the kinetic energy of the bullet
A hydrogen atom in its ground state absorbs a photon with an energy of 26 eV, What is the kinetic energy of the ejected electron
A coil of wire with 80 turns and a cross-sectional area of .03m^2 lies perpendicular to a magnetic field of magnitude 1.5T. what is the average value of the voltage induced in the coil
A plastic film of thickness 290 nm appears to be green (?green = 510 nm), What is the plastic's index of refraction
A planet orbits a star once every 3.44 multiply.gif 107 s in a nearly circular orbit of radius 1.46 multiply.gif 1011 m. determine the tangential speed of the planet
A train is rounding a circular curve whose radius is 2.00 multiply.gif 102 m. Find the magnitude of the total acceleration (centripetal plus tangential) of the train
The drive propeller of a ship starts from rest and accelerates at 2.60 multiply.gif 10-3 rad/s2 for 2.15 multiply.gif 103 s. Find the total angular displacement of the propeller
A motorcyclist is traveling along a road and accelerates for 4.20 s to pass another cyclist. The angular acceleration of each wheel is +6.95 rad/s2, What is the angular displacement of each wheel
The quantity of charge q (in coulombs) that has passed through a surface of area 1.92 cm2 varies with time according to the equation q = 4t3 + 5t + 6, What is the instantaneous current through the s
A movie camera with a (single) lens of focal length 95 mm takes a picture of a person standing 28 m away. what is the height of the image in millimeters on the film
wo sources produce coherent light waves that come together at a detector located 1.60000 mm from one source, what is the longest possible value for the wavelength
A 530.0g bird is flying horizontally at 2.20m/s, not paying much attention, when it suddenly flies into a stationary vertical bar, What is the angular velocity of the bar just after it is hit by the
A 6.00kg ball is dropped from a height of 11.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg, How high will the other ball go after the collision
A playground merry-go-round has radius 2.10m and moment of inertia 2200kg*m^2 about a vertical axle through its center, compute the average power supplied by the child
A person with a near-point distance of 29 cm is able to get a usable magnification of 12 with a particular magnifying glass. What is the friend's near-point distance
Consider a cell phone that emits electromagnetic radiation with a frequency of 1.0 GHz and with a power of 70 W. What is the electric field amplitude at a distance 1020 m away from the phone
three identical light bulbs, 24 ohm each, are connected in parallel with one another. find the equivalent resistance of the three light bulbs
an experiment is set up in which a red laser with a wavelength of 656.2m is directed through a large, irregularly shaped piece of synthetic material. What is the index of refraction of the synthetic
An ultralight plane and pilot have a total mass of 127 kg. find the net force acting on the plane and pilot
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. what is the maximum allowed braking force
A supermassive black hole passes through the edge of the solar system 1.20 x 10^13 m away. What is the mass of the black hole
Suppose a 0.250-kg ball is thrown at 15.0m/s to a motionless person standing on the ice with outstretched arms. Calculate his final linear velocity
A spherical concave lens has a focal length of 40 cm, and an object is placed 20 cm from the lens. Draw a ray diagram. (Submit a file with a maximum size of 1 MB.) Estimate the image distance
A hollow sphere of mass 1000kg and radius 25cm is rolling down an incline plane, making a beta angle horiozntally 30degrees. calculate the moment of inertia of the hollow sphere
The nucleus 124 55 Cs has a half-life of 30.8 s and a molar mass of 124 g. What is the initial activity (decay rate) of the sample