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
Rina8888 [55]
3 years ago
5

Patrick is repairing the roof on his house. He uses a hammer having a mass of 1 kilogram. While working at the apex of the roof,

the hammer slips and falls to the ground at a velocity of 12 meters/second. Find the potential energy of the hammer just before slipping.
Physics
1 answer:
pav-90 [236]3 years ago
5 0

Answer:

72 joules

Explanation:

The potential energy of that hammer is a function of its displacement against gravity. Considering that it fell with a velocity of 12 m/s, it was its displacement against gravity that gave it this velocity. It will continue to move until its displacement to gravity is zero.

since the body is in motion; it has converted its potential energy (mgh, m is mass, g is acceleration due to gravity, and h is the height) to kinetic energy (energy due to motion, 1/2mv^2; m = mass, v = velocity or speed)

therefore the potential energy is equal to kinetic energy

mgh = 1/2mv^2 = 1/2 *1kg* 12*12 = 72 joules.

You might be interested in
When a court has "___ ___" they can hear a case once a lower court has ruled on it.
notka56 [123]
Your answer is going to be Appellate jurisdiction.
3 0
3 years ago
What are the effects/impacts of electromagnetism to our world??​
yaroslaw [1]

Answer: Here's your answer: The great uses of Electromagnetism in Life. Whatever powered devices we use, from table clocks to microwave ovens, have some form of electromagnetic principle involved in their functioning. It is electromagnetism which has given the flexibility for switching of/on electricity as required.

Explanation: Yw and mark me as brainiest

7 0
2 years ago
Read 2 more answers
Which EOC organizational structure is familiar and aligns with the on-scene incident organization?
dimulka [17.4K]

Answer:

Incident Command Structure, ICS or ICS-like EOC Structure is familiar and aligns with the on-scene incident organization. ICS or ICS-like EOC Structure is familiar and aligns with the on-scene incident organization.

3 0
3 years ago
If you are over-driving your headlights and you see an object ahead, you will_____. be given the right-of-way from other vehicle
SashulF [63]

Answer: not be able to stop in time to miss the object

Explanation:

The phrase "Over-driving your headlights" means that a person is driving at such a speed that the vehicle's stopping distance is greater than the maximum viewable distance with the headlights on.

When this occurs, it will be impossible for the vehicle to stop moving in time to avoid an object viewed by the driver in the range of his headlights.

This is a <u>dangerous driving practice</u> and can be avoided by driving at <u>reduced speeds</u>.

5 0
3 years ago
Look at the periodic table which statement about the elements on the periodic table is true
IRINA_888 [86]

Answer: B

Explanation:

The reactivity of alkaline metal ( example group one ) increases down the group because of the increase in atomic mass from the top to the bottom of the group. As the mass increases, the force between the nucleus and the valence electron gets weaker and the atom will easily give up the electron as a result of this which eventually increases its reactivity.

The reactivity of halogens decreases as atomic mass increases. Therefore, option B is the correct answer.

8 0
3 years ago
Other questions:
  • Find the sum of the vectors:11 km N ,11km E
    6·1 answer
  • An 800 N box is pushed across a level floor for a distance of 5.0 m with a force of 400 N. How much work was done on this box.
    12·1 answer
  • How long does it take to drive from one end of california to the other?
    7·1 answer
  • I need help with life a child is adopted and I’m a duck where is my left shoe
    15·2 answers
  • A horizontal sheet of negative charge has a uniform electric field E = 3000N/C. Calculate the electric potential at a point 0.7m
    9·1 answer
  • If a Is close enough to a ,then it will form a nova?
    9·1 answer
  • What form of energy are microwaves?
    7·1 answer
  • A ball is thrown straight up. For which situation are both the instantaneous velocity and the acceleration zero?
    10·1 answer
  • What is the chemical formula for copper (I) sulfide? A) CuS B) CuS2 C) Cu2S D) Cu2S3
    7·2 answers
  • Which of the following would be an example of positive eugenics?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!