D Question 9 2 pts In uniform circular motion, the velocity remains constant. O True False
1).In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v' in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r= 10 cm...
1). In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v'in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r = 10...
en an object undergoes non-uniform circular motion, its acceleration vector can be broken into a radial component and a tangential component. O True O False 10 For non-uniform circular motion, the radial component of the object's acceleration represents the lengthening or shortening of the object's velocity vector. True False 11.1 1 m circular motion, the tangential component of th For non-unifor e object's acceleration represents the change in the direction of the object's velocity vector. True O False
Which quantity is NOT constant in uniform circular motion? Angular position Magnitude of the tangential velocity Angular velocity Magnitude of the centripetal acceleration. Number of revolutions per second.
True or False, no explanation needed. ( ) A charge with a velocity perpendicular to a uniform B field will move in a circular path in a plane perpendicular to the B field. ( ) A charge with a velocity perpendicular to a uniform B field will experience a magnetic force of F=qvB ( ) For a mass m to maintain a circular motion on an orbit of radius r, the needed centripetal force is mv/r. ( ) For a...
D Question 5 2 pts manufacturing overhead is a direct cost True False D Question 6 2 pts total fixed manufacturing overhead remains constant within the relevant range True False
for questions #14-17, choose from increase, decrease, remains constant. 14. if velocity increases, and radius remains the same, centripetal acceleration _15. if velocity remains constant, and radius decreases, the perceiced centrifugal force____16. if an object has uniform circular motion, acceleration ______ 17. if centripetal acceleration is increased, it is because force_____
QUESTION 2: uniform circular motion Question 2 (uniform circular motion) A rollercoaster with you in it is at the bottom of dive. Let's say you are 50 kg in mass. The coaster is traveling at 30 m/s and the curve is 8 meters in radius. a. What is the centripetal acceleration on you at the bottom of the curve? b. How much force is required to hold you at the bottom of the curve? c. What force(s) is responsible for...
QUESTION 1 : Uniform circular motion Question 1 (uniform circular motion) A 1500 kg car is taking a left turn at a constant speed of 10 m/s. The radius of the turn is 12 meters a. What is the centripetal acceleration on the car? b. How much force is require to hold the car in that turn'? c. What force(s) is responsible for the centripetal force on the car?
7.An 80.0 kg person rotates and undergoes uniform circular motion with a constant angular velocity of 8.0 rad/s 2.0m from the center of a merry-go-round. a) What is the person’s centripetal acceleration? b) What is the centripetal force this person experiences?