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A planet orbits a star, in a year of length 2.77 x 107 s, in a nearly circular orbit of radius 3.38 x 1011 m. determine the angular speed of the planet
The decay of a fictitious nucleus is accompanied by the emission of a gamma ray with wavelength 2.48*10-2 nm. What is the difference between these two levels
A long horizontal hose of diameter 3.2 cm is connected to a faucet. At the other end, there is a nozzle of diameter 1 cm. What is the velocity of the water in the hose
A two-slit apparatus is covered with a red (643 nm) filter. When white light is shone on the filter, on the screen beyond the two-slit apparatus, how wide will that diffraction maximum be
Some hydrogen gas is enclosed within a chamber being held at 200 degrees C with a volume of 0.025 m^3. What is the final volume of the container
A 130 g ball with speed 7.5 m/s strikes a wall perpendicularly and rebounds in the opposite direction with the same speed. find the magnitudes of the average force on the wall
The coefficient of friction between a certain brass block and a large revolving turntable is μ = 0.24. What is the period of rotation of the turntable
A surgeon is attempting to correct a detached retina by using a pulsed laser. If the pulses last for 36.0 ms, how many photons are present in each pulse
An x-ray photon of wavelength 0.179 nm collides with an electron initially at rest. Calculate the Compton shift in wavelength
A space vehicle is traveling at 3570 km/h relative to Earth when the exhausted rocket motor is disengaged, What is the speed (in km/h) of the command module relative to Earth just after the separation
A current of 7.93 A in a solenoid of length 14.2 cm creates a 0.327-T magnetic field at the center of the solenoid. How many turns does this solenoid contain
A 750 g aluminum pan is removed from the stove and plunged into a sink filled with 10.0 liters of water at 20.0 ° C. What was the original temperature of the pan
An apartment has a living room whose dimensions are 2.9 m x 4.9 m x 6.0 m. what is the mass (in grams) of the air
a closed Gaussian surface in the shape of a cube of edge length 3.35 m. What is the net charge (in Coulombs) contained by the cube
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 181 MeV, How many nuclei are in the beam
The weight of a 1200 kgcar is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required
a sphere is constructed of two concentric pieces. The inner part is a solid sphere of radiu 10.0 cm made of a material with density 4000 kd/m^3. What is the average density of this sphere
A 79-kg person is exposed to 83 mrem of α particles (RBE = 12). How much energy (in joules) has this person absorbed
A u-tube with a cross-sectional area of 1.00 cm^2 is open to the atmosphere at both ends. WAter is poured into the tube until the water rises part way along the straight sides, What is the density o
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the resulting image
A beam of hydrogen molecules (H2) is directed toward a wall, at an angle of 68 ° with the normal to the wall. What is the beam's pressure on the wall
A submarine is 300. m horizontally out from the shore and 100m. beneath the surface of the water. How long does it take for the laser bream to reach the building
Take element Z = 21 from the periodic table. Ionize it 20 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
Unpolarized light with an intensity of 980 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers