Which statement correctly compares sound and Electromagnetic waves?
A. Both EM and sound waves...
Physics, 05.05.2020 09:04 msitez2442
Which statement correctly compares sound and Electromagnetic waves?
A. Both EM and sound waves need matter to carry energy from one place to another.
B. Neither EM nor sound waves need matter to carry energy from one place to another.
C. EM waves carry energy parallel to the motion of the wave, while sound waves carry energy perpendicular to it
D. Sound waves carry energy parallel to the motion of the wave, while EM waves carry energy perpendicular to it.
Answers: 1
Physics, 21.06.2019 18:00
Abaseball has a mass of 0.145 kg and approaches a bat at 40.0 m/s. after it is hit, the ball leaves the bat at 50.0 m/s directly back. find the impulse of the bat on the ball. 7.25 kg*m/s 13.1 kg*m/s 5.80 kg*m/s 1.45 kg*m/s
Answers: 2
Physics, 21.06.2019 19:30
Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is
Answers: 2
Physics, 22.06.2019 21:00
What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
Answers: 1
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
Mathematics, 08.12.2021 23:20
Social Studies, 08.12.2021 23:20
Mathematics, 08.12.2021 23:20
Arts, 08.12.2021 23:20
English, 08.12.2021 23:20
Mathematics, 08.12.2021 23:20
Mathematics, 08.12.2021 23:20
Biology, 08.12.2021 23:20