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)...
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![**Question 5:**
How much more gravitational potential energy does a 2.0 kg hammer have when it is on a table 1.5 m high than when it is on a chair 0.45 m high?
*Explanation:*
This question requires the calculation of gravitational potential energy difference of a 2.0 kg hammer positioned at two different heights: 1.5 meters and 0.45 meters.
*Gravitational Potential Energy Formula:*
\[ \text{Potential Energy (PE)} = m \times g \times h \]
Where:
- \( m \) = mass in kilograms (2.0 kg)
- \( g \) = acceleration due to gravity (9.8 m/s\(^2\))
- \( h \) = height in meters
*Steps to Solve:*
1. Calculate the gravitational potential energy at 1.5 meters.
2. Calculate the gravitational potential energy at 0.45 meters.
3. Subtract the smaller energy from the larger to find the difference.
This exercise helps understand how gravitational potential energy depends on the height of an object above the ground.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1bda735b-2025-4d05-9143-dbda2769f862%2Faf845e5a-cd3d-4e29-800c-061a4d07be88%2Fyjc813_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question 5:**
How much more gravitational potential energy does a 2.0 kg hammer have when it is on a table 1.5 m high than when it is on a chair 0.45 m high?
*Explanation:*
This question requires the calculation of gravitational potential energy difference of a 2.0 kg hammer positioned at two different heights: 1.5 meters and 0.45 meters.
*Gravitational Potential Energy Formula:*
\[ \text{Potential Energy (PE)} = m \times g \times h \]
Where:
- \( m \) = mass in kilograms (2.0 kg)
- \( g \) = acceleration due to gravity (9.8 m/s\(^2\))
- \( h \) = height in meters
*Steps to Solve:*
1. Calculate the gravitational potential energy at 1.5 meters.
2. Calculate the gravitational potential energy at 0.45 meters.
3. Subtract the smaller energy from the larger to find the difference.
This exercise helps understand how gravitational potential energy depends on the height of an object above the ground.

Transcribed Image Text:**Problem 6:**
A 1450 kg racecar can accelerate from 0 to 60 km/h in 10.0 seconds. What is the average power required to achieve this?
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