![ajbrock1004](/avatars/45814.jpg)
ajbrock1004
11.03.2021 •
Physics
Calculate Momentum. A 17.00 kg bowling ball moving at 12.0 m/s down the lane. a 0 kgm/s b 17 kg c 204 kgm/s
Solved
Show answers
More tips
- C Cities and Countries How to Easily and Quickly Obtain a Schengen Visa?...
- F Food and Cooking Red Caviar: How to Choose the Best?...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Physics
- P Physics Which type of wave does the illustration depict?...
- P Physics A 0.28 kg mass is attached to a light spring with a force constant of 33.9 N/m and set into oscillation on a horizontal frictionless surface. If the spring is stretched 5.0 cm and...
- P Physics Winding a chain A 30-m-long chain hangs vertically from a cylinder attached to a winch. Assume there is no friction in the system and the chain has a density of 5 kg/m. How much work...
- P Physics When a golfer tees off, the head of her golf club which has a mass of 151 g is traveling 43.9 m/s just before it strikes a 46.0 g golf ball at rest on a tee. Immediately after the...
- P Physics The process of deforestation affects the different biochemical cycles on earth. Give three examples of how deforestation will affect the various cycles....
- P Physics What is the electric force between a 3.7 x 10^-6 C charge and a 4.9 x 10^-6 C charge that are separated by a distance of .33 m? (Don t forget your units and whether the force is attractive...
- P Physics Calculate the acceleration of gravity on the surface of kepler-62e Kepler-62e is an exoplanet that orbits within the habitable zone around its parent star. The planet has a mass that...
- H History Match each of the economic sanctions below with its definition...
- H History Many Progressives saw the need to regulate businesses in order to preserve?...
- M Mathematics PLEASE HELP!! How is solving a quadratic-linear system different from solving a linear-linear system?...
Ответ:
PE = 7.4 × 10⁴ J
KE = 1.4 × 10⁵ J
ME = 2.1 × 10⁵ J
Explanation:
Given data
mass (m): 75 kg
height (h): 100 m
speed (v): 60 m/s
acceleration due to gravity (g): 9.81 m/s²
Potential energy (PE)
This is the energy due to the position of the skydiver.
PE = m × g × h = 75 kg × 9.81 m/s² × 100 m = 7.4 × 10⁴ J
Kinetic energy (KE)
This is the energy due to the movement of the skydiver.
KE = 1/2 × m × v² = 1/2 × 75 kg × (60 m/s)² = 1.4 × 10⁵ J
Mechanical energy (ME)
The mechanical energy is the sum of the potential energy and the kinetic energy.
ME = PE + KE = 7.4 × 10⁴ J + 1.4 × 10⁵ J = 2.1 × 10⁵ J