Find the childs speed at the lowest position

Assignment Help Physics
Reference no: EM13327136

A 23.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 33.0° with the vertical

a. Neglecting friction, find the child's speed at the lowest position.

b. If the actual speed of the child at the lowest position is 2.70 m/s, what is the mechanical energy lost due to friction.

Reference no: EM13327136

Questions Cloud

Compute earnings per share for the year 2009 : What was the firm's operating profit and Compute earnings per share for the year 2009 - What is the gross profit margin (ratio of gross profit to sales)? (Round your answer to the nearest whole percentage. Omit the "%" sign in your response.)
Write code to implement the expression : Write code to implement the expression: A= (B+C) * (D+E) on 3-, 2-, 1- and 0- address machines. In accordance with programming language practice, computing the expression should not change the values of its operands. Show all instructions.
How much would the couples monthly savings be : A couple wants to renovate their house in 3 years. They need $27,000 which they plan to save for in monthly payments in an account that pays 8.5% compounded monthly. How much would their monthly savings be
Show how the following values would be stored by machines : Show how the following values would be stored by machines with 32-bit words, using little endian and big endian format. Assume each value starts at address 016. Draw a diagram of memory for each, placing the appropriate values in the correct (and ..
Find the childs speed at the lowest position : A 23.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 33.0° with the vertical, find the child's speed at the lowest position
Convert the following expression in postfix : Convert the following expression in postfix (reverse Polish notation). Remember the rules of precedence for arithmetic operators. To get full credit, you need to show all work done. i.e. sample snapshot of the stack
Choosing a culturally appropriate approach : Choosing a Culturally Appropriate Approach
Determine what is one share of this stock worth today : Mother and daughter enterprises is a relatively new firm that appears to be on the road to great success. The company paid their first annual dividend yesterday in the amount of $.28 a share.
What is present value of all sandys expected future expenses : Sandy is planing his retirement.The rate of interest that he can lend and borrow at the bank is 6 percent. He currently has $ 125000 in the bank. He intends to buy a car 3 years from now.

Reviews

Write a Review

Physics Questions & Answers

  Find the force exerted by the horizontal rope on her arms

A 55.3-kg ice skater is moving at 4.00 m/s when she grabs the loose end of a rope, Determine the force exerted by the horizontal rope on her arms

  Determine the ratio q''/q

Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. As the drawing shows.

  What is the magnitude of the runners total displacement

What is the magnitude of the runner's total displacement . What is the phase difference between the two waves next they reach the observer.

  How fast will the electron be moving

A horizontal force of 213 N is exerted on a 1.90 kg discus as it rotates uniformly in a horizontal circle (at arm's length) of radius 1.60 m. determine the time for one revolution of the discus. Round the answer to 2 decimal places.

  Find how much energy must be supplied to the refrigerator

An ideal refrigerator utilizes a Carnot cycle operating between 0 degrees Celcius and 18 degrees Celcius. How much energy must be supplied to the refrigerator

  How much does the mass of the rod increase by

A plastic rod is rubbed with a cloth, and in the process it acquires a charge of ?2.1×10E?8C. How much does the mass of the rod increase by

  What percentage of the alpha particles penetrated completely

A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons).

  Calculate the minimum density of the planet

Astronomers have recently discovered a new planet in a faraway solar system, with a radius of roughly 380 km. calculate the minimum density of the planet

  Find direction of the weakest electric field

Estimate the electric field at a point 2.40 cm perpendicular to the midpoint of a uniformly charged 2 m-long thin wire carrying a total charge of 4.10 microC.

  Compute the amplitude of the motion

A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 7.70 N is applied. A 0.490-kg particle rests on a frictionless horizontal surface, What is the amplitude of the motion

  What is the stopping distance for the drag racer

A drag racer starts from rest and accelerates for 12.3 s with a constant acceleration until it has travelled 400 m. What is the stopping distance for the drag racer

  Estimate the period of this circular path

Electrons are accelerated from rest through a potential difference of 350 V and then enter a uniform magnetic field that is perpendicular to the velocity of the electrons. Estimate the period of this circular path

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd