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Estimate the volume of your body. (Consider your body to be a cylinder having a radius of about 6 inches ( or 0.15m and a height of about 1.5 meters).
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.52). White light is incident normal to the film. Calculate the thickness of the acetone film
Calculate the magnetic force per meter between two such lightning bolts separated by 10 meters. (This is mainly to give a feeling for the strength of the magnetic field)
A hollow spherical shell with mass 2.00 kg rolls without slipping down a 38.0 degree slope, find the friction force on it
A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 1.76 10-11 m. Determine the kinetic energy of the electron.
A Major League fastball is thrown at 92.9 mph and with a spin rate of 108 rpm. how many full turns does the ball make between release and catch
The threshold of dark-adapted (scotopic) vision is 6 multiplied by 10-11 W/m2 at a central wavelength of 550 nm. If light with this intensity and wavelength enters the eye when the pupil is open to its maximum diameter of 7.5mm, how many photons p..
There is a moon orbiting an Earth-like planet. The mass of the moon is 4.74 × 1022 kg, the center-to-center separation of the planet, What is the angular momentum of the moon
An initially uncharged electroscope is polarized by bringing a negatively charged rubber rod near the bulb. If the bulb end of the electroscope acquires a net charge of +2.60pC , how many electrons are on the leaf end
The current in a 100 watt lightbulb is 0.700A . The filament inside the bulb is 0.120mm in diameter. What is the electron current in the filament
A 120 m long copper wire (resistivity 1.68e-8 Ohm*m) has resistance 6 Ohm. What is the diameter of the wire
Radiation from the head is a major source of heat loss from the human body. Model a head as a 20-cm-diameter, 20-cm-tall cylinder with a flat top. what is the net rate of heat loss on a chilly
Monochromatic light is incident from the top onto two glass plates, as the drawing shows. What happens to the bright fringes
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