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In the Bohr model of hydrogen, the electron moves in a circular orbit around the nucleus. Determine the angular speed of the electron
A 100.0 pF capacitor consists of two circular plates of radius .4 mm. How far apart are the plates
You work in a materials testing lab and your boss tells you to increase the temperature of a sample by 48.7%u2218C. what is its temperature in degrees Fahrenheit
A person with a near point of 90 cm needs to read from a computer screen that is 40 cm from her eye. What is the power of the lenses
The average distance from the earth to the sun is called the astronomical unit (AU). does it obey Kepler's third law
The middle C string on a piano is under a tension of 882 N. The period and wavelength of a wave on this string are 3.82 10-3 s, Find the linear density of the string
A convex mirror has a focal length of %u221219 cm. Where is the image if the image is upright and one-half the size of the object
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. find the change in the length of the solenoid
The suspension system of a 1800 kg automobile "sags" 14 cm when the chassis is placed on it. Estimate the values of the spring constant
A 1000 kg car carrying four 84 kg people travels over a %u201Cwashboard%u201D dirt road with corrugations 3.8 m apart, by how much does the car body rise on its suspension
A 6.30 x 10 -5 H solenoid is constructed by wrapping 54 turns of wire around a cylinder with a cross-sectional area of 6.4 x 10-4 m2. Determine the change in the length of the solenoid
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Find the total sound intensity that the man hears when he is at his initia
In a physics lab experiment, a student immersed 206 one-cent coins (each having a mass of 3.00g ) in boiling water. What was the final temperature of the coins
A quantity of carbon monoxide gas is slowly compressed adiabatically in an insulated container to one-half of its volume. determine the final pressure of the gas
A laser beam is incident on two slits 0.100 mm apart and a screen is placed 4 m from the slits. what is the wavelength of the laser light
A glass lens has a convex surface with radius 25.0 cm and a concave surface with a radius of 50.0 cm. Calculate the focal length of this lens
A 600 gram particle (initially at rest at the origin) is subjected to a force of F=15i+20j (N), calculate the average power produced by this force
A copper cup of mass 0.300 kg contains 1.00 kg of water at 315 K. It is cooled so that the temperature decreases by 2.50 K each minute. What is the rate of removal of thermal energy in watts
Two converging lenses with focal lengths of f1 = 2.00 cm and f2 = 5.00 cm are situated 14.0 cm apart on a long optics bench. determine Is the final image real or virtual
A velocity selector has a magnetic field of magnitude 0.32 T perpendicular to an electric field of magnitude of 0.34 MV/m. What must be the speed of a particle for it to pass through undeflected
A spherical pinball, initially at rest, rolls down a ramp inclined at 18 degrees relative to horizontal. Determine the translational speed
one hundred meters of 2.0mm diameter wire has a resistance of 0.532 ohm. What is the resistivity of the material from which the wire is made
A beam of unpolarized light in air strikes a flat piece of glass at an angle of incidence 54.2 degrees. what is the index reflection of the glass
A 7.0 L volume of ideal neon gas (monatomic) is at a pressure of 4.3 atmospheres and a temperature of 400 K. determine the final pressure of the gas
A battery with \Epslion 12.0 V delivers a termal voltage of 11.2 V to a 45.0 V to a 45.0 \Omega load resistor. Calculate The value of the battery's internal resisance