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Why does when a projectile is launched so that its point of launch is lower than its landing point, the upward motion take longer than the downward motion.
Wavelengths of light from a distant galaxy are found to be 0.5 percent longer than the corresponding wavelengths measured in a terrestrial laboratory. Determine is the galaxy approaching or receding from earth
A square, perfectly reflecting surface is oriented in space to be perpendicular to the light rays from the Sun, What is the radiation force on the surface from the light rays
Determine what is the electric field strength (in Newton's/coulomb) at a point in space where a proton (m = 1.67E-27 kilogram) experiences an acceleration of 3.1E+04 m/s2
find the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
Suppose a car is traveling at +21.1 m/s, and the driver sees a traffic light turn red, What is the stopping distance of the car, as measured from the point where the driver first notices the red light
when a person is given intravenous fluid the bag containing the fluid is typically held about 0.9 m above the persons
Being the curious person you are, this raises a number of interesting questions. How fast did you throw the ball? How high up did the ball get?
A cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its center like a merry-go-round. estimate the angular velocity of the cockroach-disk system
A 0.0017T magnetic field and a 5.7 x 10^3 N/C electric field both points in the same directions. Determine the magnitude and directions of the net force on the charge
A particular Bohr orbit in a hydrogen atom has a total energy of -0.85eV. What is the kinetic energy of the electron in this orbit
A resting person requires 14.5-L of per hour to maintain metabolic activities. Such a person breathes in 0.510L of air at approximately 32.0 degrees celsius with each breath. The inhaled air is 20.9 percent while the exhaled air is 16.3percent.
A 0.30 kilogram toy is attached to the end of a horizontal string and rotated in a circle of radius 1.3 meter on a frictionless horizontal surface. calculate the maximum speed the toy can have
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