Answers: 3
Physics, 21.06.2019 23:20, funnynunny2903
Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity
Answers: 2
Physics, 22.06.2019 05:20, niescarlosj
A3.9 g aluminum foil ball with a charge of +4.1Ć10ā9 c is suspended on a string in a uniform horizontal eā field. the string deviates to the right and makes an angle of 30ā with the vertical. part a part complete what information about the eā field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of eā only the direction of eā both the magnitude and the direction of eā none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
Answers: 3
Physics, 22.06.2019 06:00, tylorroundy
Aball is thrown upward. at a height of 10 meters above the ground, the ball has a potential energy of 50 joules (with the potential energy equal to zero at ground level) and is moving upward with a kinetic energy of 50 joules. what is the maximum height h reached by the ball? consider air friction to be negligible. 1. h ā 10 m 2. h ā 50 m 3. h ā 30 m 4. h ā 40 m 5. h ā 20 m 003 10.0 points which of the two object shown below has the greatest kinetic energy? a m b 1 2 m v 2v 1. kinetic energies are the same. 2. a 3. b 4. unable to determine. 004 10.0 points tim, with mass 74.6 kg, climbs a gymnasium rope a distance of 3.1 m. the acceleration of gravity is 9.8 m/s 2 . how much potential energy does tim gain? answer in units of j. 005 10.0 points a car is moving at 64 miles per hour. the kinetic energy of that car is 5 Ć 105 j. how much energy does the same car have when it moves at 111 miles per hour? answer in units of j. 006 10.0 points an 102 kg man climbs up a 1 m high flight of stairs. the acceleration of gravity is 9.81 m/s 2 . w
Answers: 3
Physics, 22.06.2019 07:00, Angelanova69134
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
A body floats at a volume of 2/5 when it is placed in oil, how dense the object is s=900km/m3ā...
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