Which among the following statements is CORRECT? A.) The value of free-fall acceleration g = 9.80 m/s2 is equal to the constant of universal gravitation G. B.) The centripetal force on a rotating object remains constant regardless of the magnitude of the object's angular speed. C.) Free-fall acceleration, g, stays the same irrespective of altitude. D.) Centripetal acceleration and tangential acceleration are perpendicular with respect to each other.

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,586 rev/min. When switched…

A: Lets imagine that the centrifuge is in circular shape and it is rotating in a counter clock wise…

Q: A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides…

A: Given: Centripetal force is required to rotate the body in a circular motion.  It depends on the…

Q: A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides…

A: given that  mass = m   radius = R   speed = v   centripetal force = F WE know that  F = m v2 / R Now…

Q: An advertisement claims that a centrifuge takes up only 0.127 m of bench space but can produce a…

A:

Q: 1. David the shepherd boy faces Goliath the soldier in a battle. The only weapon David has is a…

A: The length of the slingshot l = 0.5 m The tangential acceleration of the slingshot is a = 5m/s2 When…

Q: A rotating space station is said to create "artificial gravity"-a loosely-defined term used for an…

A:

Q: According to a recent edition of the Guinness Book of World Records the highest rotary speed ever…

A: speed (v) = 2010 msLength of rod (L) = 15.3 cm = 0.153 m

Q: The majority of satellites orbiting the Earth do so at altitudes between 160 and 2,000 kilometers.…

A: Here gravitation force work as a centripetal force

Q: A 70kg person on a merry go round is spinning with a speed of 5 m/s. If they experience a…

A: Let us consider a person having a mass ,(m)=70 Kg riding on a merry go around and spinning with…

Q: A baseball pitching machine works by rotating a light and stiff rigid rod about a horizontal axis…

A: Given,

Q: Amelia gives her doll a merry-go-around ride on an old phonograph set at 45 pm. The doll is 17 cm…

A: Given : ω = 45 rpm r = 17 cm = 0.17 m

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,450 rev/min. When switched…

A: The initial angular speed is

Q: In a medical lab, you put blood in tubes in a centrifuge to separate the plasma from the formed…

A:

Q: Helicopter blades withstand tremendous stresses. In addition to supporting the weight of the…

A:

Q: 250-g ball at the end of a string is revolving uniformly in a horizontal circle of radius 0.70 m.…

A: Given value--- mass = 250 g. radius = 0.7 m. angular velocity = 2 rev/s. We have to find---…

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,650 rev/min. When switched…

A:

Q: 8. A man is travelling at 25 m/s on the edge of a centrifuge device used for testing astronauts and…

A: Given Speed v= 25 m/s  Radius r = length of arm = 20m

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched…

A:

Q: mass m rotates at constant speed v at a radius of R from the rotational exis. A force F provides…

A:

Q: A car is slowing down in a straight road.What direction does its angular velocity point? And what…

A: The direction of angular velocity and angular acceleration is given by right hand thumb rule.

Q: A. Calculate the angular acceleration of the centrifuge assuming it to be constant. B. How long…

A:

Q: 5. NASA uses large centrifuge to study the effects of large forces on astronauts prior to their…

A: radius (r) = 8.9 m acceleration (a) = 20 g g = 9.81ms2Let the tangential speed = v

Q: Find the constant angular acceleration (in rad/s2) of the centrifuge.

A:

Q: 84. •Medical In a laboratory test of tolerance for high angular acceleration, pilots were swung in a…

A: Given data: The diameter of the given circle ( d ) is = 13.4 m The angular velocity of pilots is =…

Q: The majority of satellites orbiting the Earth do so at altitudes between 160 and 2,000 kilometers.…

A:

Q: An early major objection to the idea that the Earth is spinning on its axis was that Earth would…

A: linear velocity of earth can be calculated by 2πRv=Tv=2πRT=2π×6378×10324×60×60=463.821 m/s

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,650 rev/min. When switched…

A: Rotational kinematics equations are : 1) ωf=ωi+αt2) θ=ωit+12αt23) ωf2=ωi2+2αθ where, ωi is initial…

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,500 rev/min. When switched…

A: SOlution: given that angular speed of 3,500 rev/min rotates through 46.0 revolutions before coming…

Q: A mass m rotates at constant speed v at a radius of R from the rotational exis. A force F provides…

A:

Q: Inalarge centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of…

A: given

Q: Astronauts in the International Space Station must work out every day to counteract the effects of…

A:

Q: sidered is motion sickness. Studies have shown that the negative effects of motion sickness begin to…

A: Given data This can be converted into rad/sec as follows we have to find the minimum between the…

Q: 3. You stand on a merry-go-round which is spinning at f = 0.25 revolutions per second. You are R=…

A: Given data: Frequency of spinning is, f=0.25 rev/s. Radial distance from the center is, R=200 cm=2…

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched…

A:

Q: A mass m rotates at constant speed v at a radius of R from the rotational exis. A force F provides…

A:

Q: In this problem you will measure the gravitational constant in a series of “observational…

A: Newton's law of gravitation states that the force acting between bodies having mass m1 and m2 is…

Q: Can you drive your car in such a way that your tangential acceleration is zero while at the same…

A: Tangential acceleration is the rate of change of tangential speed. Centripetal acceleration occurs…

Q: An athlete swings a 6.30-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A:

Q: 23. A car traveling on a flat (unbanked), circular track w accelerates uniformly from rest with a…

A:

Q: Greetings thank you for your help...i appreciate you please write legibly thank you Centripetal…

A:

Q: 6. A centrifuge in a lab rotates at an angular speed of 6500 rev/min. When switched off it rotates…

A:

Q: 4. A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F…

A: Given: Centripetal force helps body to keep in rotational motion. It depends on mass of the body,…

Q: A mass m rotates at constant speed v at a radius of R from the rotational exis. A force F provides…

A:

Q: Suppose you are standing within the rim of a circular space station, in outer space. The rim…

A: Given: ν = 300 m/sr = 3000 mm = 5000 kg mg = mv2rg = v2r