Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip. (For each answer, enter a number.) (a) Calculate the magnitude (in m/s2) of the centripetal acceleration at the tip of a 4.80 m long helicopter blade that rotates at 305 rev/min. m/s² (b) Compare the linear speed of the tip with the speed of sound (taken to be 340 m/s). Vtip/sound

Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip. (For each answer, enter a number.) (a) Calculate the magnitude (in m/s?) of the centripetal acceleration at the tip of a 3.00 m long helicopter blade that rotates at 240 rev/min. m/s? (b) Compare the linear speed of the tip with the speed of sound (taken to be 340 m/s). Vtip/V sound

I need help on this question: You are driving on a horizontal circular road of radius 50.0 m at a constant speed of 11.17 m/s. How much time does it take to complete 10 rounds?What is your angular velocity? When you are at the northern most point on the road, what is the magnitude and direction of your acceleration?

A wheel of a radius 5.02 m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 4.00 m/s2, what is the point’s tangential speed?

What is the radial acceleration of the blade tip expressed as a multiple of the acceleration due to gravity, g? Express your answer as a multiple of g.

A military jet is flying at 357 m/s in a tight circular turn. If the military jet reaches a centripetal acceleration of 10.0 times the free-fall acceleration, what must the radius of its turn be?

The power to electric motor rotating at 600 rpm is cut off. If the magnitude deceleration of the centrifuge is 2.3 rad/s2 how many revolutions does it make before coming to rest?

Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip. (For each answer, enter a number.)   a) Calculate the magnitude (in m/s2) of the centripetal acceleration at the tip of a 3.90 m long helicopter blade that rotates at 345 rev/min.   b) Compare the linear speed of the tip with the speed of sound (taken to be 340 m/s). v tip / v sound = ?

A sprinter participating in the 200 m dash has to run around a track that has a circular arc with a radius of curvature of 26 m.  She completes the 200 m dash in 22.8 seconds at constant speed throughout the race. a) What is the magnitude of her centripetal acceleration in m/s2 as she runs the curved portion of the track?  b) What is the magnitude of her tangential acceleration in m/s2 as she runs the curved portion of the track?   c) What is the magnitude of her angular acceleration in rad/s2 as she runs the curved portion of the track?   d) What is the magnitude of her resultant linear acceleration in m/s2 as she runs the curved portion of the track?

Astronauts in the International Space Station must work out every day to counteract the effects of weightlessness. Researchers have investigated if riding a stationary bicycle while experiencing artificial gravity from a rotating platform gives any additional cardiovascular benefit. What frequency of rotation, in rpm, is required to give an acceleration of 1.4g to an astronaut’s feet, if her feet are 1.1 m from the platform’s rotational axis?