Answers: 1
Physics, 21.06.2019 20:30
When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m
Answers: 2
Physics, 22.06.2019 03:50
The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=0โ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=30โ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=45โ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=60โ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle ฮธ=90โ with the plane of polarization?
Answers: 1
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 โ 103 s. given that the charge of an electron is 1.6022 โ 10โ19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 20:40
Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop
Answers: 1
What is the celsius equivalent of 212...