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
saveliy_v [14]
3 years ago
8

How much would a 75kg man weigh due to the effect of gravity

Physics
1 answer:
Nezavi [6.7K]3 years ago
4 0

Answer: 735 N

Explanation:

Weight W is a measure of the gravitational force acting on an object and is directly proportional to the product of the mass m of the body by the acceleration of gravity g:  

W=m.g

In the case of our planet Earth, the acceleration due gravity is g=9.8 m/s^{2}. So for a man whose mass is m=75 kg, his weight is:

W=(75 kg)(9.8 m/s^{2})

W=735 N

You might be interested in
Melissa uses bags of mulch that way 40 pounds each. She needs to carry 10 bags to her truck. She usually carries one bag at a ti
arsen [322]
No. She would be doing the same amount of work that way. Work is defined to be equal to the force multiplied by the distance. Carrying two bags at a time would cause her to exert twice the effort, so the total amount of work done in the end would still be the same.
4 0
3 years ago
A carnival game consists of a two masses on a curved frictionless track, as pictured below. The player pushes the larger object
Harman [31]

Answer:

v₁₀ = 1.90 m / s

Explanation:

In this exercise we are given the maximum height data, with energy we can know how fast the body came out

Final mechanical energy, maximum height

    Em_{f} = U = m g h

Initial mechanical energy, in the lower part of the track

    Em₀ = K = ½ m v²

    Em=   Em_{f}

    ½ m v² = m g h

    v = √ 2gh

Now we can use the moment to find the speed with which objects collide

The large object has a mass M = 5.41 kg a velocity starts v₁₀, the small object has a mass m = 1.68 kg an initial velocity of zero v₂₀ = 0 and  final velocity v

Initial before the crash

    p₀ = M v₁₀ + 0

Final after the crash

      p_{f} = M v1f + m v

   p₀ =   p_{f}

   M v₁₀ = M v_{1f}+ m v

As the shock is elastic the kinetic energy is conserved

     K₀ = K_{f}

    ½ M v₁₀² = ½ M v_{1f}² + ½ m v²

Let's write the system of equations

    M v₁₀ = M  v_{1f} + m v

    M v1₁₀² = M v_{1f}² + m v²

We cleared v1f in the first we replaced in the second

   v_{1f} = (M v₁₀ - mv) / M

    M v₁₀² = M (M v₁₀ - mv)² / M² + m v²

    M v₁₀² = 1 / M (M² v₁₀² - 2mM v v₁₀ + m² v²) +m v²

     v₁₀² (M - M) + 2 m v v₁₀ - v² (m2 + m) / M = 0

     2 m v₁₀ - v (m + 1) m/ M = 0

     v₁₀ = v (m +1) / (2M)

Let's substitute the value of v

     v1₁₀= √ (2gh) (m +1) / (2M)

Let's calculate

    v₁₀ = √ (2 9.8 3) (1+ 1.68) / (2  5.41)

    V₁₀ = 7.668 (2.68) / 10.82

   v₁₀ = 1.90 m / s

5 0
3 years ago
PLZ HELP What is necessary condition for production of waves?
N76 [4]

Answer:

The length of the rope must be an integral multiple of the wavelength of the wave.

Explanation:

4 0
3 years ago
Read 2 more answers
Hello, are there any furries, artists, equestrians, gamers, athletes, etc? If so reply down below
Advocard [28]

Answer:

“Just believe in yourself. Even if you don’t pretend that you do and, and some point, you will.”

Explanation:

5 0
3 years ago
Read 2 more answers
Explain what differentiates the Earth’s crust and lithosphere.
Allisa [31]

Answer:

What is the difference between the crust and lithosphere? The crust (whether continental or oceanic) is the thin layer of distinctive chemical composition overlying the ultramafic upper mantle. ... The lithosphere is the rigid outer layer of the Earth required by plate tectonic theory.

Explanation:

Hope this helps!

4 0
2 years ago
Read 2 more answers
Other questions:
  • Which of these planets has a giant red spot? saturn jupiter uranus neptune
    5·2 answers
  • An electron moving in the direction of the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in
    15·1 answer
  • Find an equation for the plane that passes through the point [1, 1, 8] and that has [-1, -6, 3] as normal vector.
    15·1 answer
  • A physics student throws a ball straight up. The student catches the ball in exactly the same place from which it was released.
    15·1 answer
  • Three kilograms of argon (Ar) changes from an initial volume and a temperature of 298K to (a) four times the volume and a temper
    10·1 answer
  • Which theorist purports that to grow to become the best they can be, individuals must be permitted to make choices and must trus
    7·1 answer
  • An object of mass 700700 kg is released from rest 20002000 m above the ground and allowed to fall under the influence of gravity
    9·1 answer
  • How can we take advantage of waste materials​
    14·1 answer
  • What is the gravitational force between two objects?​
    7·2 answers
  • The image below The image below The image below The image below The image below The image below The image below The image below
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!