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
tamaranim1 [39]
3 years ago
8

The acceleration due to gravity on earth is 9.80 m/s2. if the mass of a dog is 40.0 kg, what is the weight of the dog? 4 n 40 n

392 n 490 n
Chemistry
2 answers:
PSYCHO15rus [73]3 years ago
7 0

Answer: The Weight of the dog is 392 N.

Explanation:

Acceleration due to gravity ,(g): 9.80m/s^2

Mass of the dog,(m) = 40 Kg

Weight is measure of force exerted by gravity on the object. Its S.I units are Newtons (kg\times m/s^2)

Weight= mass × g

40\times 9.80m/s^2=392 N

Hence, the weight of the dog is 392 N.

Elden [556K]3 years ago
3 0
Weight = mass * acceleration

W = 40*9.8

= 392N
You might be interested in
Conserving water can save money while protecting the environment. True or False
blagie [28]

Answer: The given statement is true.

Explanation:

Water is a natural resource present in the nature and it is very precious as life without it is impossible.

So, when we unnecessarily use water then it means we are wasting a natural resource that cannot be reproduced again by human beings.

Therefore, more we are able to conserve water more we can protect other human life's and environment also.

If there is shortage of water then its prices will go high and hence we need to pay more for it.

Thus, we can conclude that the statement conserving water can save money while protecting the environment, is true.

3 0
3 years ago
Read 2 more answers
A molecule of H2SO4 contains how many atoms?
Margaret [11]

Answer:

2 hydrogen atom, 1 sulfer atom, and 4 oxygen atoms.

6 0
2 years ago
Describe the movement of electrons when the atom colors by applying ground state and excitement state?
Sladkaya [172]

Answer:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations.The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum

Explanation:

The electron is jumped into higher level and back into lower level by absorbing and releasing the energy.

The process is called excitation and de-excitation.

Excitation:

When the energy is provided to the atom the electrons by absorbing the energy jump to the higher energy levels. This process is called excitation. The amount of energy absorbed by the electron is exactly equal to the energy difference of orbits.  For example if electron jumped from K to L it must absorbed the energy which is equal the energy difference of these two level. The excited electron thus move back to lower energy level which is K by releasing the energy because electron can not stay longer in higher energy level and comes to ground state.

De-excitation:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations. this energy is exactly equal to the energy difference between the orbits. The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum

5 0
3 years ago
Show the calculation of the energy involved in condensation of 150 grams of steam at 100oC if the Heat of Vaporization for water
vaieri [72.5K]

Answer : The energy involved in condensation is, 339 kJ

Explanation :

Formula used :

q=m\times L

where,

q = heat required = ?

L = latent heat of vaporization of water = 2.26kJ/g

m = mass of water = 150 g

Now put all the given values in the above formula, we get:

q=(150g)\times (2.26kJ/g)

q=339kJ

Therefore, the energy involved in condensation is, 339 kJ

4 0
3 years ago
Explain the different principles that allow roller coasters to rip and roar around the tracks. In your response, include how ene
Jlenok [28]

Answer:

In the roller coasters the potential energy that is given is the gravitational potential energy, which this energy increases its value as the object moves away from the earth, that is to say, the more height the roller coaster acquires the more gravitational potential energy it will have, and Said train where people usually get on the roller coaster will descend or descend with greater acceleration.

This gravitational potential energy once the mountain begins to descend or descend is converted into kinetic energy

Explanation:

This that we wrote above is considering that the roller coaster does not have curved routes but rectilinear, in the case that it had curved routes, a force would be added in addition to those written that is the centripetal force, it is the same force that appears in the centrifuges or dryers of clothes or the same washing machine. This force, the centripetal force is the force that draws a moving object, in a curvilinear path, towards the center of the curvature.

8 0
3 years ago
Other questions:
  • Celina has a water sample that’s contaminated with salt and microorganisms. Which method should she use to purify the water?
    9·2 answers
  • The density of sea water is 1.029 kilograms per liter. What is the density of
    13·1 answer
  • What electrically neutral atom will have an electron configuration of 1 s 22 s 22 p 4? Use a periodic table.
    14·1 answer
  • Can some one work out this equation for me :)
    11·1 answer
  • Buscar en la Tabla Periódica Sargent Welch (S W) la configuración electrónica de los átomos indicados en a, b y c (para ésto pue
    15·1 answer
  • State the number of electrons that must be gained by atoms of each of the following elements to obtain a stable electron configu
    8·1 answer
  • Calculate the number of grams of C2H6 in 4.6 miles of C2H6
    10·1 answer
  • This reaction releases energy as heat. Explain whether the reaction is exothermic or endothermic and whether it obeys the law of
    10·1 answer
  • A gaseous substance turns directly into a solid. Which term describes this change?
    9·2 answers
  • The atoms of platinum and silver are identical (true or false)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!