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White light consisting of wavelengths ranging from 400nm to 700nm falls on a diffraction grating that has 4000 lines/cm. What are the angular ranges of the first three orders?
A 75.0-N force is required to compress the spring of a dartgun 18.0 cm to load a 125-g dart. With what speed will the dart leave the gun?
The coefficient of kinetic friction between the 49.0 kg block and incline is 0.250. Determine the change in the kinetic energy of the 49.0 kg block as it moves from A to B, a distance of 20.0 m.
A man who normally weighs 400 N on the Earth's surface climbs to the top of a very tall ladder so he is one Earth-radius above the earth's surface. How much would he weigh there?
When the spheres are given equal amount of negative charge, each charge hangs at θ = 25.0 degrees from vertical. What is the magnitude of the charge q?
A freight train has a mass of 1.20E+7 kg. If the locomotive can exert a constant pull of 8.36E+5 N, how long does it take to increase the speed of the train from rest to 80.7 km/hr?
Find the frequency of vibration on Mars for a simple pendelum that is 50 cm long. Object weighs 0.40 as much on Mars as on the Earth.
A banked circular highway curve is designed for traffic moving at 64 km/h. The radius of the curve is 199 m. Traffic is moving along the highway at 46 km/h on a rainy day. What is the minimum coeffi
On her return trip, she drives half the time at 35 and half the time at 55. How long does it take Julie to complete the trip to Grandmother's house?
A man weighing 720 and a woman weighing 400 have the same momentum. What is the ratio of the man's kinetic energy to that of the woman ?
A bowling ball (mass = 5.0 kg, radius = 0.11 m) and a billiard ball (mass = 0.40 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational forc
Light with a wavelength of 633 nm illuminates a single slit and a diffraction pattern of light is viewed on a screen that is 1.50 m behind the hole. The distance between the m = 1 and m = 2 minima i
The water is fired from the hose at a height of 3.0 meters to a height of 30.0 meters. What is the minimal magnitude and velocity of the water leaving the hose in order to reach the fire?
A child slides down a slide with a 31 incline, and at the bottom her speed is precisely one third what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic fri
A vertical scale on a spring balance reads from 0 to 245 rm{N}. The scale has a length of 11.0 rm{cm} from the 0 to 245 rm{N} reading. A fish hanging from the bottom of the spring oscillates vertica
by accident, 20g of aluminum at 275 degree celcius is dropped to a 25g of water at 80 degree celsius. how much steam is produced?
You drag a block across a table while a friend presses down on the block. The coefficient of friction between this table and this block is 0.4. The vertical component of the force exerted by the ta
Even though we measured it, why isn't it necessary to know the exact voltage across the full length of the wire in the potentiometric method
Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then decreased by 1.5 %. What will be the beat frequency heard when the two strings are played together?
A spring of spring constant 3.00 X 10^4 N/m is between a rigid beam and the output piston of a hydraulic lever. An empty container with negligable mass sits on the input piston.
A sphere of mass 2 kg and diameter of 10 cm is fired with the initial speed of 8 micrometres per second directly toward the center of a second sphere with mass of 500 kg and diameter of 1 m, which i
Soft drinks are commonly sold in aluminum containers. to an order of magnitude, how many such containers are thrown away or recycled each year by U.S. consummers?
An ideal gas is confined within a closed cylinder at a pressure of 2.026 × 105 Pa by a piston. The piston moves until the volume of the gas is reduced to one-ninth of the initial volume. What
a 200 g ball is tied to a string. it is pulled to an angle of 8 degrees and released to swing as a pendulum. a student with a stopwatch finds that 10 oscillations take 12 s. how long is the string?
A closely wound rectangular coil of 80 turns has dimensions of 25 cm by 40 cm. The plane of the coil is rotated from a position where it makes an angle of 37 degrees with a magnetic field of 1.10 T