Physics, 15.11.2020 20:00 solphiafischer
Which statement best explains why light can travel with or without a medium?
A medium is necessary for light waves to travel.
Light waves cannot travel in a vacuum.
Light waves are longitudinal waves that do not require a medium to travel.
Transverse waves do not require a medium to travel.
Answers: 2
Physics, 22.06.2019 08:30
A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?
Answers: 1
Physics, 22.06.2019 14:00
Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
Answers: 1
Physics, 22.06.2019 23:40
Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earthโs geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earthโs field would have little effect on the bacteria. take the earthโs field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)
Answers: 1
Physics, 23.06.2019 08:00
Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? a.positive force, balanced force, negative force b.negative force, balanced force, positive force c.positive force, unbalanced force, negative force d. negative force, unbalanced force, positive force
Answers: 1
Which statement best explains why light can travel with or without a medium?
A medium is necessary...
Social Studies, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31
Spanish, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31
Mathematics, 10.12.2019 03:31