How does Newton’s third law explain how a rocket takes off?
A
The rocket’s accele...
How does Newton’s third law explain how a rocket takes off?
A
The rocket’s acceleration is positive, while the gas’s acceleration is negative but the direction is the same. The motion is therefore both “equal and opposite”
B
The rocket is at rest until ignition.
C
The hot gases move in one direction, while the rocket moves in the opposite direction but with equal force.
D
The hot gases cause global warming.
Answers: 2
Physics, 22.06.2019 20:10, JayLiz1737
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)
Answers: 1
Physics, 23.06.2019 09:30, TheRunningPotatoe245
What would occur if the index of refraction of a material was less than n=1? the speed of light would increase to a speed larger than the maximum speed of light in a vacuum. the light wave would not bend at all though the material. the light wave would not be able to refract and would instead reflect off of the material. the speed of light would reduce to values close to 0 m/s.
Answers: 3
Physics, 23.06.2019 13:30, christeinberg1
Two light bulbs each having a resistance of 3ohms are connected in series to a battery marked 12 volts. how much current will flow in the circuit
Answers: 1
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