Physics, 05.07.2019 04:20 genyjoannerubiera
Aspacecraft of mass 1500 kg orbits the earth at an altitude of approximately 450 km above the surface of the earth. assuming a circular orbit, what is the attractive force that the earth exerts to keep the spacecraft+ in orbit?(a) 1.28x 10^7 (n) (b) 2.99 x 10^7 (n) (c) 3.56 x 10^7 (n). (d) 4.11 x 10^7 (n) (e) 5.06x 10^7 (n)
Answers: 1
Physics, 22.06.2019 04:30
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 20:50
In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.
Answers: 3
Physics, 23.06.2019 03:00
Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?
Answers: 2
Physics, 23.06.2019 06:00
What is offspring? why does a longer life span mean a higher chance of producing offspring?
Answers: 3
Aspacecraft of mass 1500 kg orbits the earth at an altitude of approximately 450 km above the surfac...
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