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A wheelchair athlete is training on a stationary ergometer. Her wheel's angular velocity is 3 rev/s and diameter is 80.0 cm.
a) What is the linear velocity at the wheel's center?
b) What is the linear velocity at the wheel's circumference?
c) After one minute at this rate what would be the equivalent horizontal distance traveled?
A conducting rod of length 0.5 m slides along a frictionless table at a constant velocity 1.5 m/s. A uniform magnetic field of 0.75 T is normal to the surface.
Upon being struck by 240 nm photons, a material ejects electrons with a maximum kinetic energy of 2.58 eV
A narrow beam of light with wavelengths from 450nm to 700nm is incident perpendicular to one face of a 40.00degrees prism made of crown glass, What is the angular spread of the beam after passing through the prism
Find an expression for the volume charge density ?(r) inside the ball as a function of r. Express your answer in terms of the variables Q, r, R, and appropriate constants
Hydrogenic atoms in an ultraviolet light fall from energy quantum state n = 9 to state n = 2 while releasing ultraviolet photons. How many photons are being released per second
If 5.0 ´ 1021 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor
A 35kg child slides down a playground slide at aconstant speed, The slide has a height of 4.0mand is 7.4m long, find the magnitude of the kinetic friction force acting on the child
Determine Maximum wavelength and Minimum wavelength. How various penguins of mass 16 kg each can stand on the ice block before they find their feet wet.
A 110 g copper calorimeter cup contains 190 cm3 of water and 45 g of ice, all in thermal equilibrium. find the mass of water before the hot iron is put into the cup
Assume that when you ride on your 7.60-kg bike the weight of you and the bike is supported equally by the two tires. If the gauge pressure in the tires is 78.5 lb/in2 and the area of contact between each tire and the road is 7.13 cm2, what is your we..
A home (volume = 1000 m3) built in 1946 has urea formaldehyde insulation, which outgases into the home at a rate of 5 ng/hr, What is the steady state concentration (C) of formaldehyde in the home
A positron (q = +e) moves at 3.2 multiply.gif 107 m/s in a magnetic field of magnitude 0.46 T. What is the angle between the velocity and the field
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