Physics, 11.07.2019 14:00 showerofstars
Anasa explorer spacecraft with a mass of 1,000 kg takes off in a positive direction from a stationary asteroid. if the velocity of the spacecraft is 250 m/s and the asteroid is pushed back –25 m/s, what is the mass of the asteroid? assume there is no net force on the system. a) 100 kg b) 6,250 kg c) 10,000 kg d) 6,250,000 kg
Answers: 1
Physics, 22.06.2019 01:30
Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy
Answers: 1
Physics, 22.06.2019 06:40
Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?
Answers: 2
Physics, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
Physics, 22.06.2019 19:00
The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?
Answers: 1
Anasa explorer spacecraft with a mass of 1,000 kg takes off in a positive direction from a stationar...
Mathematics, 01.07.2019 06:10
Mathematics, 01.07.2019 06:10
History, 01.07.2019 06:10
Biology, 01.07.2019 06:10
Mathematics, 01.07.2019 06:10
Social Studies, 01.07.2019 06:10
Social Studies, 01.07.2019 06:10
Biology, 01.07.2019 06:10
Biology, 01.07.2019 06:10