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
dangina [55]
4 years ago
7

What is the weight of a 90kg man standing on the moon, where gmoon = 1.64 m/s2?

Chemistry
1 answer:
Doss [256]4 years ago
3 0

Answer:

The weigth of a 90kg man standing on the moon is <u><em>147.6 N (option C)</em></u>

Explanation:

Weight is called the action exerted by the force of gravity on the body.

The mass (amount of matter that a body contains) of an object will always be the same, regardless of where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

The formula that allows you to calculate the weight of any body is:

W = m*g

where:

  • W = weight measured in N.
  • m = mass measured in kg.
  • g = acceleration of gravity measured in m/s². The acceleration of gravity g is the same for all objects that fall due to gravitational attraction, whatever their size or composition. For example, as an approximate value on Earth, g = 9.8 m/s².

In this case,  the mass m has a value of 90 kg and the gravity g has a value of 1.64 m/s², which is the value of the acceleration of gravity of the moon. Then:

W=90 kg* 1.64 m/s²

<u><em>W= 147.6 N</em></u>

Finally, <u><em>the weigth of a 90kg man standing on the moon is 147.6 N (option C)</em></u>

You might be interested in
Which has the greater mass? 1 l copper or 1 l silver?
Serggg [28]
SILVER!!!!!!!!!! ITS SILVER ITS HEAVY
6 0
3 years ago
Is green ink homogeneous or heterogeneous?
Leno4ka [110]
<span>Green ink is homogeneous.
please mark as brainliest

</span>
7 0
3 years ago
Which substance is the oxidizing agent in this reaction? fe2o3+3co→2fe+3co2 express your answer as a chemical formula?
erma4kov [3.2K]
Equation is as follow,

                            Fe₂O₃  +  3 CO     →     2 Fe  +  3 CO₂

Oxidation:

                                        3 CO     →     3 CO₂

Oxidation state of C in CO is +2, and that in CO₂ is +4. So, carbon has lost 2 electrons per mole and 6 electrons per 3 moles hence,

                                 3 CO     →     3 CO₂  +  6 e⁻

Reduction:

                                    Fe₂O₃     →     2 Fe

Oxidation state of Fe in Fe₂O₃ is +3 per atom, and that in Fe is 0. So, Iron has gained 3 electrons per atom and 6 electrons per 2 atoms hence,

                                    Fe₂O₃  +  6e⁻     →     2 Fe

Result:
             Iron in Fe₂O₃ has been reduced in this reaction and has played a role of oxidizing agent by oxidizing carbon from +2 state to +4 state.
4 0
3 years ago
Different amounts of ice was added to several samples of water. The results are shown in the table. Which conclusion can be draw
Yakvenalex [24]

The conclusion which can be drawn from the results that more ice added caused a greater change in temperature.

<h3>Why temperature of substance changes?</h3>

Temperature of any substance will change if some amount of energy is absorbed or released by that substance in the form of heat.

If in simple water, we add some amount of ice then energy or heat from the whole mixture will released as a result of which temperature of the water decreases. And decrease in temperature will depend on the amount of added ice.

Hence, more ice added caused a greater change in temperature.

To know more about change in temperature, visit the below link:

brainly.com/question/24719561

#SPJ1

3 0
2 years ago
What is an element considered a pure substance?
Alona [7]

A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.


8 0
3 years ago
Other questions:
  • A chemist wants to uncover evidence that when molecules of a gas strike the wall of a container, energy is transferred from the
    13·1 answer
  • Which physical property is used to be Indentify the ability to dissolve
    6·1 answer
  • Which of the following is required to change the state of matter?
    14·1 answer
  • Explain how you know the charge of a nickel ion given a formula and a name.
    8·1 answer
  • Which change of state is shown in the model?
    15·1 answer
  • Once at the top. the wax molecules begin to___________ energy to the glass then the surrounding air.
    5·1 answer
  • What is the chemistry​
    7·2 answers
  • A cell phone manufacturer recalled some 50 million lithium batteries installed in cell phones because the batteries were at risk
    11·1 answer
  • Why does an aqueous solution of an ionic substance conduct an electric current?.
    6·1 answer
  • Identify the steps that are followed in taking a stratified random sample. i. Take a sample of size n/k from each strata, where
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!