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
Tatiana [17]
3 years ago
11

Eric has a mass of 80 kg. He is standing on a scale in an elevator that is accelerating downward at 1.7 m/s2. What is the approx

imate reading on the scale? Eric has a mass of 80 . He is standing on a scale in an elevator that is accelerating downward at 1.7 . What is the approximate reading on the scale? 0 N 650 N 780 N 920 N
Physics
1 answer:
Yuki888 [10]3 years ago
3 0

To solve this problem it is necessary to apply the concepts related to the Force of Gravity and the Normal Force that act on the body.

The Gravity Force on Eric would be given by

F_g = mg

F_g = (80)(9.8)

F_g = 784N

To find the normal Force we must also consider downward acceleration therefore

F_N = M(-g+a)

F_N = (80)(-9.8+1.7)

F_N = -648N

Since the Normal Force is the Reaction Force the approximate reading on the scale is 650N

You might be interested in
Consider the circuit below, which is powered by a 8-v battery. switch s is opened at t = 0 after having been closed for a long t
GrogVix [38]
The battery will be full still a 8v bc of no time comparison
4 0
3 years ago
What is the speed of light in air ?<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" title=" \\ " alt=" \\ "
hichkok12 [17]

Answer:

the speed of light in air is about 299,000,000 and 3×10⁸ m/s

4 0
2 years ago
Read 2 more answers
Test Due! Which statement is true?
Lubov Fominskaja [6]

The correct answer is C. Mercury and Mars have the same gravitational force

Explanation:

This chart compares the different features of two planets in our solar system (Mercury and Mars). In this chart, the only numerical value or feature that is the same for both planets is gravity because for both planets gravity is 1.7 m/s2. This implies the gravitational force or the force that attracts objects towards the center of the planet is the same or that objects are pulled with the same force in both planets. Moreover, this factor depends on others such as mass, density, among others.

8 0
2 years ago
All of the following would be questions that could be scientifically investigated except:
dimulka [17.4K]

Answer:

"What is the best advice a parent can give a child?"

Explanation:

The other answers have one clear response. Ex: Orange popsicles melt faster than grape popsicles. That would be a fact.

But parental advice can vary, depending on your opinion. I may say that all parents must teach their children not to talk to strangers, while someone else may say that parents should advice their kids to treat everyone fairly. Nothing can be proven as the only appropriate response.

Hope this helps!

5 0
3 years ago
A ball that is thrown upwards from the ground will eventually reach its highest point and fall back to the ground. Which of the
tia_tia [17]

Answer:

option (c)

Explanation:

When an object thrown upwards, the value of acceleration acting on the object is acceleration due to gravity which is always acting towards the earth.

As it falls downwards, the acceleration is again equal to the acceleration due to gravity.

So, the ball's acceleration is constant.

5 0
3 years ago
Other questions:
  • Scientists use specific processes to evaluate information in order to determine its accuracy and reliability. A scientist is con
    5·2 answers
  • A large magnetic flux change through a coil must induce a greater emf in the coil than a small flux change. A) True B) False
    7·1 answer
  • An astronaut is being tested in a centrifuge. The centrifuge has a radius R and, in starting, rotates according to θ = tn, where
    7·1 answer
  • Help it’s due tomorrow
    9·1 answer
  • The image of the lemon is at point I. What is the size of the image compared to the size of the lemon?
    8·2 answers
  • Using the same cost and time estimates, consider any trade-offs that SciTech may have to make to complete the project.
    10·2 answers
  • A battery connected across two parallel metal plates. There is a uniform E-field between the plates, and a positive charge exper
    8·1 answer
  • How does a free-body diagram tell you about the net force on an object?
    8·2 answers
  • What is the magnitude of the normal force?
    14·1 answer
  • What is the approximate efficiency of the engine?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!