Physics, 25.02.2021 17:00 miranda3837
A 100-meter sprint is a race using only the straight side
of a racetrack. A 400-meter sprint is a race that makes
one complete lap around a racetrack. Why are velocity
and speed the same for a 100-m sprint but not a 400-m
sprint?
Answers: 3
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Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
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Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current
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Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving
Answers: 2
Physics, 22.06.2019 20:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
A 100-meter sprint is a race using only the straight side
of a racetrack. A 400-meter sprint is a r...
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