GOAQUESTION 24An object moves around a circle. If the radius is doubled keeping the speed the same then the magnitude of the centripetal force must be:A. the sameOB. four times as greatOC. half as greatD. one-fourth as greatOE. twice as greatQUESTION 25A force F= (4.1 N)+(2.6 N)-(4.7 N) acts on a mass of 2.3 kg as it moves in the x direction at a speed of 7.2 m/s. What is he rate at which the face is doingwork?O A. 49 WO B. 16 WO C.30 WO D.8.8 WO E. 60 Wit to save and submit. Click Save All Answers to save all answers,MacBook Air GRAOFEEQUESTION 22A simple pendulum consists of a 2.0 kg mass attached to a string. The pendulum is released from rest at a vertical distance of 1.85 m from the lowest position. The speed atthe lowest point is:OA. 1.9 m/sOB.3.7 m/sOC. 36 m/sOD.6.0 m/sOE. 4.4 m/sQUESTION 23Knot-maximum weight of block A for which the system will be stationary.BThe coefficient of static friction between block and table is 0.25. Block B weighs 711 N and the angle 8 is 30°. If the cord between block B and the knot is horizontal, find thee and Submit to save and submit. Click Save All Answers to save all answers.MacBo88

QUESTION 24 An object moves around a circle. If the radius is doubled keeping the speed the same then the magnitude of the centripetal force must be: A. the same OB. four times as great OC. half as great OD. one-fourth as great E. twice as great 4.7 N) acts on a mass of 2.3 kg as it moves in the x direction at a speed of 72 m/s. What is the rate at wh

QUESTION 24 An object moves around a circle. If the radius is doubled keeping the speed the same then the magnitude of the centripetal force must be: A. the same OB. four times as great OC. half as great OD. one-fourth as great E. twice as great 4.7 N) acts on a mass of 2.3 kg as it moves in the x direction at a speed of 72 m/s. What is the rate at wh

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter12: Oscillatory Motion

Section: Chapter Questions

Problem 35P

See similar textbooks

Similar questions

Figure 15.46 This child’s toy relies on springs to keep infants entertained. (credit: By Humboldthead, Flickr) The device pictured in Figure 16.46 entertains infants while keeping them from wandering. The child bounces in a harness suspended from a door frame by a spring constant. (a) If the spring stretches 0.250 m while supporting an 8.0—kg child, what is its spring constant? (b) What is the time for one complete bounce of this child? (c) What is the child's maximum velocity if the amplitude of her bounce is 0.200 m?
The position of a particle attached to a vertical spring is given by y=(y0cost)j. The y axis points upward, y0 = 14.5 cm. and = 18.85 rad/s. Find the position of the particle at a. t = 0 and b. t = 9.0 s. Give your answers in centimeters.
A horizontal spring attached to a wall has a force constant of 850 N/m. A block of mass 1.00 kg is attached to the spring and oscillates freely on a horizontal, frictionless surface as in Figure 5.22. The initial goal of this problem is to find the velocity at the equilibrium point after the block is released. (a) What objects constitute the system, and through what forces do they interact? (b) What are the two points of interest? (c) Find the energy stored in the spring when the mass is stretched 6.00 cm from equilibrium and again when the mass passes through equilibrium after being released from rest. (d) Write the conservation of energy equation for this situation and solve it for the speed of the mass as it passes equilibrium. Substitute to obtain a numerical value. (e) What is the speed at the halfway point? Why isnt it half the speed at equilibrium?
A 2.00-kg block hangs without vibrating at the end of a spring (k = 500. N/m) that is attached to the ceiling of an elevator car. The car is rising with an upward acceleration of g/3 when the acceleration suddenly ceases (at t = 0). (a) What is the angular frequency of oscillation of the block after the acceleration ceases? (b) By what amount is the spring stretched during the time that the elevator car is accelerating?
A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 7.50 N is applied. A 0.500-kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin to x = 5.00 cm and released from rest at t = 0. (a) What is the force constant of the spring? (b) What are the angular frequency , the frequency, and the period of the motion? (c) What is the total energy of the system? (d) What is the amplitude of the motion? (c) What are the maximum velocity and the maximum acceleration of the particle? (f) Determine the displacement x of the particle from the equilibrium position at t = 0.500 s. (g) Determine the velocity and acceleration of the particle when t = 0.500 s.
Check Your Understanding Identify an object that undergoes uniform circular motion. Describe how you could trace the SHM of this object.
A mass is placed on a frictionless, horizontal table. A spring (k=100N/m) , which can be stretched or compressed, is placed on the table. A 5.00-kg mass is attached to one end of the spring, the other end is anchored to the wall. The equilibrium position is marked at zero. A student moves the mass out to x=4.0 cm and releases it from rest. The mass oscillates in SHM. (a) Determine the equations of motion. (b) Find the position, velocity, and acceleration of the mass at time t=3.00 s.
A horizontal spring attached to a wall has a force constant of 850 N/m. A block of mass 1.00 kg is attached to the spring and oscillates freely on a horizontal, frictionless surface as in Figure 5.22. The initial goal of this problem is to find the velocity at the equilibrium point after the block is released. (a) What objects constitute the system, and through what forces do they interact? (b) What are the two points of interest? (c) Find the energy stored in the spring when the mass is stretched 6.00 cm from equilibrium and again when the mass passes through equilibrium after being released from rest. (d) Write the conservation of energy equation for this situation and solve it for the speed of the mass as it passes equilibrium. Substitute to obtain a numerical value. (e) What is the speed at the halfway point? Why isnt it half the speed at equilibrium?
A blockspring system oscillates with an amplitude of 3.50 cm. The spring constant is 250 N/m and the mass of the block is 0.500 kg. Determine (a) the mechanical energy of the system, (b) the maximum speed of the block, and (c) the maximum acceleration.
Some people modify cars to be much closer to the ground than when manufactured. Should they install stiffer springs? Explain your answer.
A mass-spring system moves with simple harmonic motion along the x axis between turning points at x1 = 20 cm and x2 = 60 cm. For parts (i) through (iii), choose from the same five possibilities, (i) At which position does the particle have the greatest magnitude of momentum? (a) 20 cm (b) 30cm (c) 40 cm (d) some other position (e) The greatest value occurs at multiple points, (ii) At which position does the particle have greatest kinetic energy? (iii) At which position does the particle-spring system have the greatest total energy?
The amplitude of a lightly damped oscillator decreases by 3.0% during each cycle. What percentage of the mechanical energy of the oscillator is lost in each cycle?