Physics, 17.12.2020 19:20 carleygalloway103
Kat leaves home and walks 250. m North and then turns East and walks another 350. m. Give the
vector displacement (both magnitude and direction) for the shortest distance to reach Kat from her home to
where she is now. Draw a rough vectoral sketch of the problem and calculate her displacement using math
Answers: 3
Physics, 21.06.2019 13:30
An astronomer at the equator measures the doppler shift of sunlight at sunset. from this, she calculates that earthβs tangential velocity at the equator is 465 m/s. the centripetal acceleration at the equator is 3.41 ο΄ 10 ο2 m/s 2 . use this data to calculate earthβs radius.
Answers: 3
Physics, 22.06.2019 09:00
Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
Answers: 1
Physics, 22.06.2019 12:00
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
Physics, 22.06.2019 19:50
Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n β β n (9.8)(45β3 xi) i = 1 Ξ΄x express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j
Answers: 3
Kat leaves home and walks 250. m North and then turns East and walks another 350. m. Give the
vecto...
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