In track and field, the hammer throw involves spinning a 7.26 kg ball attached to a 1.21 m wire in a circle, and then throwing it as far as possible. During the spinning phase, if the ball is rotating with a speed of 14.3 m/s, what is the centripetal force that the wire exerts on the ball? 126 N 1230 N O 884 N 85.8 NIf a 11, 250 N force is applied over an area of 3.122 ma, what is the pressure that is being exerted? O 35, 120 Pa O 11, 250 Pa O 3603 Pa O 19, 980 Pa. Ronald is pushing a shopping cart with a force of 16.0 N at angle of11.5 downward from the horizontal. If Ronald pushes the cart 14.9 m how much work has he done on it? .At a depth of 3 m, the pressure under water is equal to approximately 29, 430 Pa. At this depth, what force is the water exerting over an area of 0.00125 m2? Dakota is spinning a 400 g weight tied to a string over her head. The string is 1.38 m long, and the weight is moving with a speed of 3.91 m/s. What is the centripetal force pulling the weight inward? 1.13 N O 8.44 N 2.16 N 4.43 NA car is driving around a circular track. The tires on the car are only designed to withstand a centripetal acceleration of 14.5 -. If the track has a radius of 29.0 m, what is the maximum speed the car can drive on the track? 11.0 m/s 19.1 m/s O 20.5 m/s 14.5 m/s. Monique is pulling a wagon with a rope. She pulls on the rope with a force of 68.0 N, at an angle of 33 above horizontal. If Monique performs 1840 J of work on the wagon how much distance does she cover? 1. Felipe is loading laboratory equipment into a storage crate. The fully loaded crate has a weight of 1110 N. The base of the crate is 1.05 m long by 0.875 m wide. What is the pressure exerted by the crate on the floor? O 490 Pa O 1210 Pa O 1110 Pa O 1020 PaA 694 kg roller coaster cart is at rest at the top of a 49.9 m hill. When the cart reaches the bottom of the hill, how quickly will it be moving? 36.9 m/s 26.4 m/s 31.3 m/s D 38.0 m/sAn asteroid is headed towards a certain planet. The planet has a mass of 2.33 * 10% kg, and a radius of 70, 400 km. What is the acceleration of gravity that the asteroid will experience when it is about to crash into the surface of the planet? 28.3 m/s2 14.6 m/s2 19.9 m/s2 31.4 m/s2The planet Mercury has a mass of 3.30 * 1025 kg, and a radius of 2440 km. How much would a 924 kg robotic rover weigh on the surface of Mercury? 12, 200 N 5640 N 9060 N 3420 N0.844 m2 Claire is setting up a 1070 N bird bath on her lawn. If the pressure on the lawn exceeds 5450 Pa, the soil will shift and compact, making the bird bath unstable. What is the minimum area over which the bird bath's weight should be distributed to avoid compacting the soil too much? 5.09 m 0.196 m2 1.16 m'. Cody is at the top of a 6.2 m tall slide. He has a mass 01'35 kg. Before he begins moving, how much gravitational potential energy,' does he have? 3 2100 J On a certain planet, a 145 kg rock weighs 2378 N. If this planet has a mass of 3.85 * 1025 kg, what is the radius of the planet? 23, 900 km 17, 400 km 19, 600 km 12, 500 kmJodie is riding her bicycle around town. At the top of a certain hill, she has 380 J of kinetic energy, and 9450 J of gravitational potential energy. Ignoring friction, how much total energy will Jodie have when she is at the bottom of the hill. 9450 J 9070 J 9830 J 380 JThe planet Neptune has a mass more than 17 times greater than Earth's, but the gravity at the surface of Neptune is similar to Earth's: 11.15 m What attributes of Neptune would account for this?2. Zane is roller skating around a circular track. He is skating with a constant speed of 5.4 m/s, and the track has a radius of 14 m. What is Zane's centripetal acceleration? 2.1 m/s2 1.8 m/s2 1.4 m/$2 0.39 m/s2Alice is watching a Wind turbine spin She watches the turbine for 2.1] minutes, and counts 35 total revolutions in that time span, Based on this observation what is the period of rotation for the wind turbine? Z) 17.5 s 3 1205 . A certain planet orbiting a nearby star is observed to have a nearly circular orbit of radius 939 a: It]7 km, and an orbital period of 104.4 days, What is the mass bfthe start that this planet orbits? C) 4.34 1: 1030 kg C) 4.09 a: 1030 kg C) 1.96 a: 1025 kg C) 5.59 a: 1025' kg 3. A certain car has a mass 0f152 kg. The total area of contact between the tires and the ground is 0.0948 m2. What is the pressure the ear is exerting on the road? 0 1.50 :0: 104 Pa O 1.57 1.. 105 Pa O 1410 Pa Q 339 a: 105 Pa Two students are standing next to one another. One student has a mass of 79.0 kg, and the other has a mass of 93.5 kg. If they are standing so that their centers of mass are a distance of 1.12 m apart, what is the force of the gravitational attraction between them? 8.77 * 10- N 1.29 * 10-6 N 3.93 * 10 7 N 4.40 * 10 7 NClara is pushing a broken down car. She pushes with a force of 625 N, and is able to move the car a distance of 18.8 m. If the force and displacement vectors are in the same direction, how much work did Clara do on the car? 33.2 J 2240 J )OJ 11, 800 JA certain moon orbits its planet, and its orbit has a radius of 1.14 * 10 km. If the planet has a mass of 8.45 * 1025 kg, then what is the orbital period for the planet? 2.42 * 1010 s O 2.66 * 1010 s 7.74 * 10' s 1.03 * 10' sI. A certain full},r loaded car has a mass of 2830 kg. if the car is driving at a speed of 24.4 We; how much kinetic energy does the car have? j) 1.53 a: 105 J :) 3.42 $105 J j) 2.19 #105 J j) 34, 500 J