1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ANTONII [103]
3 years ago
6

An object of mass 100kg is released from rest and falls through a distance of 10m.what is the work done by gravity

Physics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

Mass = 100 kg

Acceleration due to gravity = 9.8m/s

Height = 10 m

Work done = mgh

= 100 x 9.8 x 10

= 9800 J

Hope this helps!

You might be interested in
Explain why it is important that the balloon is made from an electrical insulator.
aleksandr82 [10.1K]

Explanation:

object made of rubber, such as the ballons are elecrical insulators, meaning that they resist electric charges flowing through them..

when the ballon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall

8 0
3 years ago
A 40 kg shell is flying at a speed of 72 km/h. It explodes into two
viva [34]

Answer: This is true

Explanation: v2=800/25= 32m/s

5 0
3 years ago
All valid equations in physics have consistent units. Are all equations that have consistent units valid?
sweet [91]

Answer:

c. No. An equation may have consistent units but still be numerically invaid.

Explanation:

For an equation to be corrected, it should have consistent units and also be numerically correct.

Most equation are of the form;

(Actual quantity) = (dimensionless constant) × (dimensionally correct quantity)

From the above, without the dimensionless constant the equation would be numerically wrong.

For example; Kinetic energy equation.

KE = 0.5(mv^2)

Without the dimensionless constant '0.5' the equation would be dimensionally correct but numerically wrong.

8 0
3 years ago
What is robot??????????
S_A_V [24]

Answer:

a machine capable of carrying out a complex series of actions automatically, especially one programmable by a computer.

6 0
3 years ago
How many electrons are depicted in the electron dot diagram of an electrically neutral nitrogen atom? A. two B. six C. eight D.
goldenfox [79]

Answer is D - five.


<em>Explanation;</em>


- Electron dot diagrams show the valence electrons around the element by using dots.


- Valence electrons are the electrons which are in outermost shell of the atom.


-The atomic number of the N atom is 7.

      Atomic number = number of protons = 7

  If the atom is neutral,

      number of protons = number of electrons.


  Hence, N atom has 7 electrons.


- The electron configuration is 1s² 2s² 2p³.


Hence, N atom has 2 + 3 = 5 valence electrons. So, five electrons are represented in electron dot diagram of N.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A car advertisement claims their car can go from a stopped position to moving 60 miles per hour in 5 seconds. The advertisement
    15·1 answer
  • Data: Atom Element Protons Neutrons Electrons Net Charge Mass Number 1 2 3 4
    11·1 answer
  • True or false. Lateral to the inguinal region is the coxal region, while superior to the scapular region is the dorsal region.
    14·1 answer
  • A race car traveling at 10. meters per second accelerates at the rate of 1.5 meters per seconds while traveling a distance of 7,
    13·2 answers
  • Explain whether P waves or S waves are infra sound
    15·1 answer
  • Which option is an example of a physical property?
    15·2 answers
  • For each value below, enter the number correct to four decimal places. Suppose an arrow is shot upward on the moon with a veloci
    8·1 answer
  • Calculate the speed of an object that travels 75m in 15s.
    15·2 answers
  • Define the following terms: a) Heating effect of electric current b) Magnetic effect of electric current. c) Electric fuse. d) T
    14·1 answer
  • ______ is a simple movement in which two opposing surfaces slide slightly back-and-forth or side-to-side with respect to one ano
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!