If an object has a mass of 38 kg, what is its approximate weight on earth?
Solved
Show answers
More tips
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- C Computers and Internet How to Download Videos from YouTube? Simple Steps to Download Any Content...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- S Style and Beauty How to Get Rid of Acne: Scientifically Proven Methods...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine 10 Simple and Effective Tips on How to Lose Weight in a Week...
- F Food and Cooking What s the Best Rice for Cooking Plov?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics Secrets of NATO: Which Countries are Part of the Alliance?...
Answers on questions: Physics
- P Physics Four identical 2.5 mF capacitors are connected together electrically. What is the greatest possible capacitance of the combination? 0.50 mF, 0.42 mF, 0.63 mF, 10...
- P Physics Which of these is an illuminated source of light? a. the sun b. a star c. the earth seen from the moon d. a meteorite as it burns up in the atmosphere ***ooh i don...
- P Physics You (in the x frame) are moving with v = +5 m/s with respect to the x frame. if your initial position in each frame is om, what are the positions in each frame after...
- P Physics The michelson-morley experiment showed that the speed of light varies depending on the direction of the ether wind. true false...
- P Physics Imagine you are riding a bike the wrong way on a moving sidewalk in an airport. your bike s speedometer says you are moving 20 mph, and the sidewalk moves at 5 mph....
- P Physics Compare the speed of particles in the ice, water, and air?...
- P Physics The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is select one of the options below as your a. decreasing...
- P Physics Using an inclined plane, what happens to the amount of work that has to be done? a. the amount of work increases. b. the amount of work decreases. c. the amount of...
- M Mathematics What does n equal in this problem? -2(n+1)=6...
- S Social Studies What happens when societies do not have governments?...
Ответ:
To be more exact, 38 should be multiplied by 9.8 instead of 10.
Ответ:
Mechanical energy = 429.984J
Explanation:
Given the following data;
Mass = 7.2kg
Velocity = 2.4m/s
Height = 5.8m
To find the mechanical energy;
Mechanical energy = kinetic energy + potential energy
First of all, we would determine the values of K.E and G.P.E
K.E = ½mv²
K.E = ½*7.2*2.4²
K.E = 3.6*5.76
K.E = 20.736 J
P.E = mgh
We know that acceleration due to gravity is equal to 9.8m/s²
P.E = 7.2*9.8*5.8
P.E = 409.248
Substituting the values into eqn 1, we have;
Mechanical energy = 20.736 + 409.248
Mechanical energy = 429.984J