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How much is the time measured by an astronaut in a spaceship for a class on the Earth that lasts for one hour (the time measured on the Earth), if the spaceship has a speed of 0.6c relative to the Earth? (note, c is the speed of light) Answer in hours.
calculate the wavelength of matter waves associated with a bullet of 20.0 grams fired at 100. meters per second.x 10
A 100 arrow is shot perpendicularly from a bow whose effective spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does arrow rise.
For a double-slit experiment, the inside edges of two 1.73-mm wide slits are separated by a distance of 1.35 mm. find the separation of the bright fringes on the screen
In an EM wave traveling west, the B field oscillates vertically and has a frequency of 87.0 kHz and an rms strength of 6.80×10?9 T. What is the frequency and rms strength of electric field
What is the force on the 1 nC charge at the bottom. how far will it skid if it is traveling at 120 km/h when its brakes lock.
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. find the distance (in m) between the cliffs
A football player runs the pattern by the three displacement vectors, , and . The magnitudes of these vectors are A = 4.00 m, B = 18.0 m, and C = 16.0 m. Using the component method, find out the (1) magnitude and (2) direction of the resultant vec..
A uniform electric field of magnitude 415 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. What is the work done by the field on the electron
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 ? 1011 solar masses. What should the orbital period of that star be
Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, What is the pebble's speed and acceleration
A 1-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 60 degrees from the normal. what is the ray's angle from the normal
Calculate the lowest values of the energies (in eV) of an electron, a neutron and a photon allowing diffraction from the {101} planes of silicon
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