A quasar is a distant celestial body in space. Investigators use a special telescope and determine that a certain quasar was giving off waves with a frequency of 1.41 X 109 Hz. An electromagnetic spectrum is shown above. The investigators were most likely using a telescope that detects which type of wave?
Answers: 3
Physics, 22.06.2019 00:30
Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?
Answers: 1
Physics, 22.06.2019 17:00
If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction
Answers: 3
Physics, 22.06.2019 22:00
If a hiker that weighs 600 newtons climbs a 50 meter hill, how much gravitational potential energy has the hiker gained?
Answers: 1
A quasar is a distant celestial body in space. Investigators use a special telescope and determine t...
History, 18.12.2020 06:00
Physics, 18.12.2020 06:00
Physics, 18.12.2020 06:00
Mathematics, 18.12.2020 06:00
History, 18.12.2020 06:00
Chemistry, 18.12.2020 06:00
Advanced Placement (AP), 18.12.2020 06:00
Mathematics, 18.12.2020 06:00
English, 18.12.2020 06:00
Biology, 18.12.2020 06:00