**Problem Statement:**A 475 kg pre-stressed concrete beam is raised 10.0 m in 24.0 s. How many kilowatts of power are needed for the job?**Explanation:**In this problem, you're asked to calculate the power required to lift a certain mass over a specified height and time. The key concepts involved include:- **Mass (m):** 475 kg- **Height (h):** 10.0 m- **Time (t):** 24.0 s- **Power (P):** The rate at which work is done, measured in kilowatts (kW).The solution involves:1. Calculating the gravitational force (weight) using \( F = mg \), where \( g = 9.81 \, \text{m/s}^2 \).2. Finding the work done using \( W = Fh \).3. Determining power using \( P = \frac{W}{t} \).4. Converting the result to kilowatts.

Answered: Image /qna-images/answer/bf0a1b08-70a3-4f57-bbbe-82df994e62d9.jpg

Answered: 191 2044 A 475 kg pre-stressed concrete…

191 2044 A 475 kg pre-stressed concrete beam is raised 10.0 m in 24.0 s. How many kilowatts of power are needed for the job?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

10. Jared and Clay are climbing the stairs. Jared gets tired and stops halfway to the fourth floor. Clay makes it to the fourth floor v.. a problem. If Jared is twice as heavy as Clay, who has more potential energy? Explain.
2. Mikey sees that the right front tire (m 30.0 kg) of Granny's car has landed in front of him. He picks it up and runs for 40 m at a constant velocity of 2.0 m/s to return it to her. How much work did Mikey do on the tire from 10 m to 20 m into his run? =
1. The restoring force from a non-ideal spring can be described by F-250N/m A-800N/m³. (Az)³, where Az is measured from equilibrium. How much work is done compressing this spring by 10 cm?
An electric winch causes an elevator to move between floors of a ten-story building. The mass of the elevator with a maximum load of passengers is at most 500. kg. The elevator moves a speed of 0.304 m/s taking a time of 115.s to travel the distance of 35.0 m. What is the minimum power rating this winch would have? Select one: a. b. C. d. 1.49 x 10³ W 1.30 x 10¹ W 4.90 x 10³ W 1.72 x 105 W
10. A rollercoaster cart begins at the bottom of a hill at rest. An external motor pulls a 1.2 x 10³ kg cart up to the top of the first hill. The power provided by the motor is 9.9 x10³ W and it takes the cart 35 s to reach the top of the first hill. The cart reaches the top of the first hill and is released with a speed of 7.0 m/s. There is no friction between the track and the cart. A: Pictorial Representation label givers with symbols Event 1: Motor turns on Event 2: Cart reaches the top of the first hill, motor turns off y₂-? Event 3: Cart reaches the top of the second hill. ya 10.0 88317 B: Physics Representation energy flow diagrams, energy bar charts E+E Flow 1-2 Flow 2-3 ÖFF OFF D: Mathematical Representation Complete equations, describe steps, algebraic work, substitutions, final answer (a) What is the total work done by the motor on the cart? (Hint: rearrange the power equation) (Tum over!) (b) What is the speed of the cart when it travels over the second hill? (If you could…