16. The Figure shows a conical pendulum, in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.040 kg, the string has length L= 0.90 m and negligible mass, and the bob follows a circular path of circumference 0.94 m. What is the tension in the string Cord L Bob

A Ferris wheel has radius of 4.8 m and makes one revolution in 7.4 seconds. A person weighing 686 N is sitting on one of the benches attached at the rim of the wheel. What is the apparent weight (that is, the normal force exerted on her by the bench) of the person as she passes through the highest point of her motion?

Children playing pirates have suspended a uniform wooden plank with mass M = 13.4 kg, length ℓ = 2.40 m, and angle θ = 35.0°, as shown in the figure. Sophia, with a mass of m = 21.6 kg, is made to "walk the plank" and is d = 1.5 m from reaching the end of the plank. What is the tension acting on the rope at the end (i.e value of F3)?

An object of mass 8.25 kg is travelling in a horizontal circle on a frictionless surface.  It is attached to a rope that is 0.987 m long and has a tension of 16.9 N. Calculate the period of the uniform circular motion.

The cable cars in San Francisco are pulled along their tracks by an underground steel cable that moves along at 9.5 mph. The cable is driven by large motors at a central power station and extends, via an intricate pulley arrangement, for several miles beneath the city streets. The length of a cable stretches by up to 100 ft during its lifetime. To keep the tension constant, the cable passes around a 1.5-m-diameter "tensioning pulley" that rolls back and forth on rails, as shown in ( Figure 1). A m = 2000 kg block is attached to the tensioning pulley's cart, via a rope and pulley, and is suspended in a deep hole. m T = 1.5 m Cable Rail Part A What is the tension in the car's cable? Express your answer with the appropriate units.

please answer letter d and e

Life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. Samples in a symmetric array of containers are spun rapidly about a central axis. The centrifugal acceleration they experience in their moving reference frame acts as "artificial gravity" to effect a rapid separation. If the sample containers are 11.9 cm from the rotation axis, what rotation frequency is required to produce an acceleration of 1.85-105 g? Submit Answer Tries 0/99

A 0.7-kg mass attached to the end of a string swings in a vertical circle (radius = 2.3 m). When the mass is at the lowest point on the circle, the speed of the mass is 15 m/s. What is the magnitude of the force of the string in newtons (i.e. tension in the string) on the mass at this position?

A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is elastic. The masses of the ball and block are, respectively, 1.7 kg and 2.4 kg, and the length of the wire is 1.23 m. Find the velocity (magnitude and direction) of the ball (a) just before the collision, and (b) just after the collision. +y ++

A car of mass 1.43x10°kg goes around an unbanked, circular curve of radius 26.6m at a speed of 13.4m/s . What is the horizontal force that the road must exert on the car?