Physics, 21.02.2020 04:18 markcardenas2756
A car travels on a banked circular curve at constant speed. All four of the car's tires roll without slipping. The car moves at just the right speed so that the frictional force is zero. Which statement is true?
a. The vertical component of the normal force acts toward the center of the circle.
b. The horizontal component of the normal force acts toward the center of the circle.
c. The normal force acts in the opposite direction as the car's velocity.
d. The normal force acts in the same direction as the car's velocity.
e. The normal force acts toward the center of the circle.
Answers: 2
Physics, 22.06.2019 18:00
The protons in a nucleus are approximately 2 โ 10^โ15 m apart. consider the case where the protons are a distance d = 1.93 โ 10^โ15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
Answers: 1
Physics, 22.06.2019 18:30
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
A car travels on a banked circular curve at constant speed. All four of the car's tires roll without...
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