Ball bearing manufacturing is quite an art! In order to make perfect spherical balls, the manufacturers let molten metal droplets to fall inside a tall tower (i.e. the shot tower) to solidify as they fall. If a ball bearing needs 2.75 seconds to solidify enough for impact, how tall (in m) must the tower be? Use 9.80 m/s2 for the local acceleration due to gravity and assume no significant air resistance.

Ball bearing manufacturing is quite an art! In order to make perfect spherical balls, the manufacturers let molten metal droplets to fall inside a tall tower (i.e. the shot tower) to solidify as they fall. If a ball bearing needs 2.75 seconds to solidify enough for impact, how tall (in m) must the tower be? Use 9.80 m/s2 for the local acceleration due to gravity and assume no significant air resistance.

Name: Ball bearing manufacturing is quite an art! In order to make perfect s
Uploaded: 2024-03-20T06:57:47.000Z
Channel: Bartleby
Description: Ball bearing manufacturing is quite an art! In order to make perfect spherical balls, the manufacturers let molten metal droplets to fall inside a tall tower (i.e. the shot tower) to solidify as they fall. If a ball bearing needs 2.75 seconds to soli

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 15P: A car initially traveling eastward turns north by traveling in a circular path at uniform speed as...

See similar textbooks

Similar questions

We know that the moon Callisto revolves around Jupiter during a period of 17.0 days.17.0 days. The average distance from the center of Jupiter to the center of Callisto is 1.95×109 m.1.95×109 m. What is the acceleration ?a of Callisto due to its motion around Jupiter?
A cannon is on the edge of a vertical cliff 50 m high. The cannon then fires horizontally giving the cannon ball a speed of 420 m/s. What is the speed of impact (in m/s) of the cannon ball?
Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness. Suppose a dancer (or skater) is spinning at a very fast 2.7 revolutions per second about a vertical axis through the center of his head. Although the distance varies from person to person, the inner ear is approximately 7.0 cm from the axis of spin. Y What is the radial acceleration (in m/s²) of the endolymph fluid? Express your answer in meters per second squared. ΕΨΕΙ ΑΣΦΑ Grad = 22.5 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B X What is the radial acceleration (in g's) of the endolymph fluid? Express your answer as a multiple of g. 196| ΑΣΦ a= 2.25 DMC Xb b √x √x x
Q1-A 2.0 meter tall basketball player is standing on the floor a distance from the basket. He shoots the ball at an angle of 23 degrees above the horizontal with a speed of 9.6 m/s and makes the shot. If the ball goes in the hoop at 5 seconds, what is the height of the hoop?
Consider two spherical raindrops. The first raindrop is small with radius R1, and the second is big with radius R, = 1.5 R1. As each raindrop falls through the atmosphere, it eventually reaches its terminal velocity. Suppose the terminal velocity of the first raindrop is vr1 = 8 m/s. Calculate the terminal velocity of the second raindrop.
A rectangular parallelepiped has dimensions a, b, and c as shown in Figure P3.45. (a) Obtain a vector expression for the face diagonal vector R,. (b) What is the magnitude of this vector? (c) Notice that R, ck, and R, make a right triangle. Obtain a vector expression for the body diagonal vector R2. b Ro R1 Figure P3.45
a) A wind turbine with two or four hollow hemispherical cups connected to a pivot is commonly uscd to measure wind speed. Consider a wind turbine with four 8-cm- diameter cups with a center-to-center distance of 40 cm, as shown in Fig. PI1-35. The pivot is stuck as a result of some malfunction, and the cups stop rotating. For a wind speed of 15 m/s and air density of 1.25 kg/m3, determine the maximum torque this turbine applies on the pivot. A hemisphere at two different orientations for Re > 10 40 cm C04
In the vertical jump, an Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00 s in the air (their "hang time"). Treat Kobe as a particle and let ymax be his maximum height above the floor. Note: this isn't the entire story since Kobe can twist and curl up in the air, but then we can no longer treat him as a particle. Hint: Find v0 to reach y_max in terms of g and y_max and recall the velocity at y_max is zero. Then find v1 to reach y_max/2 with the same kinematic equation. The time to reach y_max is obtained from v0=g (t), and the time to reach y_max/2 is given by v1-v0= -g(t1). Now, t1 is the time to reach y_max/2, and the quantity t-t1 is the time to go from y_max/2 to y_max. You want the ratio of (t-t1)/t1 Note from Asker: I am generally confused on how to manipulate the formulas, so if you could show every step that would be great, Thank You. Part A Part complete To explain why…
In a laboratory test of tolerance for high acceleration, a pilot is swung in a circle 11.5 m in diameter. It is found that the pilot blacks out when he is spun at 30.6 rpm (rev/min). At what acceleration (in SI units) does the pilot black out? Express this acceleration in terms of a multiple of g. If you want to decrease the acceleration by 13.0% without changing the diameter of the circle, by what percent must you change the time for the pilot to make one circle? acceleration: acceleration as a multiple of g: percent of time change: m/s² %
A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in Figure P7.15. The length of the arc ABC is 235 m, and the car completes the turn in 36.0 s. (a) Determine the cars speed. (b) What is the magnitude and direction of the acceleration when the car is at point B? Figure P7.15
While at the county fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find the motion somewhat unpleasant. To take your mind off your stomach, you wonder about the motion of the ride. You estimate the radius of the big wheel to be 15 m, and you use your watch to find that each loop around takes 25 s. a. What are your speed and magnitude of your acceleration?
a) At what height above the ground does the projectile have a speed of 0.5v0? Express your answer in terms of v and g. You may or may not use all of these quantities. b) What is the speed of the object at the height of (1/2)hmax? Express your answer in terms of v and g. You may or may not use all of these quantities.