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
kakasveta [241]
3 years ago
5

study a 75kg person stands on a scale in an elevator what does read in n and in kg when the elevator is at rest?

Physics
1 answer:
Verdich [7]3 years ago
6 0

To solve this problem we will use Newton's second law in order to obtain the weight of a person. The second law tells us that

F = ma

Where,

m = mass

a = Acceleration

In this particular case, the acceleration is equal to that exerted by the earth through gravitational acceleration, so if the person's weight is 75Kg and the gravity is 9.8m / s^2 , the weight of the body will be,

F_W =mg

F_W = (75kg)(9.8m/s^2 )

F_W = 735.75N

When the elevator is at rest this reads 735.75N and 75Kg (The same mass of the person)

You might be interested in
3. What is the best way to help with<br> mining problem in the future?
marusya05 [52]

Answer:

1) Mining companies have an impressive track record for delivering continuous improvements in safety and risk governance standards. We have no doubt that the professionalism and expertise present within the industry will ensure that any new and emerging risk challenges are dealt with in an equally determined fashion.

2) Insurers have recognized the approach and achievements of mining companies in identifying, mitigating and retaining their risks. Many mining companies have close and longstanding relationships with their insurers built through regular dialogue with mining company executives and visits to mining sites and processing facilities.

3) This document should be of value to any organization involved in this ever-evolving industry.

4) The very nature of mining natural resources means that many businesses will have operations in some of the most remote and inhospitable areas in the world and very often coupled with a high susceptibility to natural catastrophe.

5) In addition to the traditional risk factors, the mining industry now faces an even wider range of challenges. Factors such as climate change, new technologies, economic uncertainties and secure supply of key consumables like electricity, water, gas and other fuels are all difficult to predict and bring additional complications to securing appropriate balance sheet protection.

4 0
3 years ago
When a red giant dies, before it becomes a WHITE DWARF (small, dim, hot star) that eventually becomes a BLACK DWARF (remnant, da
vagabundo [1.1K]

some massive black dwarfs may eventually produce <u>supernova explosions. </u>These will occur if pycnonuclear (density-based) fusion processes much of the star to iron, which would lower the Chandrasekhar limit for some black dwarfs below their actual mass.

6 0
3 years ago
Kinetic energy is
faust18 [17]
A is the correct answer.

please vote my answer branliest! Thanks.
8 0
4 years ago
Fill in the blank with the correct word below (from the reading_):
grigory [225]

Answer:I think it’s self monitoring sorry if wrong

Explanation:

4 0
3 years ago
3. What are the two parts of a shadow?
Zielflug [23.3K]

Answer:

the umbra and penumbra

Explanation:

The two parts of a shadow are the umbra and penumbra.

A shadow is an expression formed when light from a source is cut blocked by an opaque body.

Most shadows are made up of two parts, umbra and penumbra.

  • The umbra is the darkest, and the innermost part of a shadow.
  • In the penumbra, only a portion of the light source is blocked. It is more of like a partial shadow.

The umbra is directly formed by light which impinges on an opaque body and it completely cut off.

5 0
4 years ago
Other questions:
  • A 1500-kg car traveling east with a speed of 25.0 m/s collides at an intersection with a 2500-kg van traveling north at a speed
    15·1 answer
  • Which of the following is the best example of proper hypothesis?
    5·2 answers
  • List three reasons why knowing how to graph movement can help you on a practical level.
    10·1 answer
  • In a RLC circuit, a second capacitor is connected in parallel with the capacitor previously in the circuit. What is the effect o
    10·1 answer
  • Can u read a ruler it's very hard
    12·1 answer
  • True or False? Materials that are good conductors of heat are usually poor conductors of electricity.
    11·2 answers
  • Does the box contain positive charge, negative charge, or no charge? Does the box contain positive charge, negative charge, or n
    14·1 answer
  • The picture below shows a football player kicking a football. This is known as two dimensional motion. In which direction does t
    11·1 answer
  • As the wavelength decreases, the frequency
    11·2 answers
  • g Design an experiment you can use to determine the mass of the metal cylinder. When you explain your experiment, be sure to men
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!