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Light is an electromagnetic wave and travels at a speed of 3.00 x 10^8 m/s. The visible spectrum is the portion of the electromagnetic that is visible to the human eye. The human eye is sensitive to light among the ultraviolet and infrared region corresponding to wavelength of 390 nm and 700 nm. Determine what is the frequency band of this light?
You exert a force as shown in the diagram to push a large crate of books (about 1 m high, m = 45.0 kg) across a rough floor at constant speed v = 0.650 m/s. Find the rate at which work is done by you
Use the following values for mass and charge: an electron has mass me = 9.11×10-31 kg and charge -e, What is the kinetic energy of the electron in units of eV
Use the ideal gas approach to find the thermal velocity, and determine the scaling law based on the resulting equation
A substance has a melting point of 20° C and a heat of fusion of 2.9 × 104 J/kg. The boiling point is 150° C and the heat of vaporization is 5.8 × 104 J/kg at a pressure of one atmosphere. The specific heats for the solid, liquid, and gaseous phases ..
carnival ride has a large horizontal steel disc of radius 5m from which cars are suspended by a 6m long chain. the disx is rotated about its axis so that the cars swing out and revolve in a circular path. at operation speed the angle of the chains ..
The drawing shows an A-shaped ladder. Both sides of the ladder are equal in length. Determine the tension in the crossbar of the ladder
Monochromatic light with a wavelength of 362 nm passes through a single slit and falls on a screen 82 cm away. If the distance of the ?rst-order dark band is 0.49 cm from the center of the pattern, what is the width of the slit? Answer in units of cm
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to five before coming to rest momentarily.
A space station is to provide artificial gravity to support long-term stay of astronauts and cosmonauts. It is designed as a large wheel, with all the compartments in the rim, how long should the motor fire
A stationary proton is accelerated through a potential difference of 83.5 KV. what speed did the proton acquire by using work-energy theorem
Two blocks are stacked on a frictionless table. A horizontal force F is applied to M2. If M1=1.39kg, M2=3.02 Kg, and F=6.3 N, find the size of the contact force between the two blocks
200 Joules of heat flows into a 35 g sample. If the temperature increases by 10°C, then what is the heat capacity of the sample
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