Velocity of an object is given as
now we have
time = 3 hours
now from above formula
so its velocity is 40 mph and its a vector quantity whose direction is towards NORTH
correct answer is B
It take 365 1/4 days basically, one year.
Hi!
The correct answer is : <u>either stretch or compress the spring</u>
<h3>Explanation</h3>
The spring constant, denoted commonly as k, is a component of Hooke's law which describes the force that is required to compress or stretch an object to be directly proportional to the length of extension or compression.
F ∝ x
where F is the force applied to the spring, and x is the length of extension or compression.
The equation of Hooke's law is consequently
F = kx
where k is a non zero constant, known as the spring constant.
<h3>Hope this helps!</h3>
<u>Question:
</u>
The law of conservation of mass follows from the concept that a. atoms are indivisible. b. atoms of different elements have different properties. c. matter is composed of atoms. d. atoms can be destroyed in chemical reactions.
<u>Answer:</u>
The law of conservation of mass follows from the concept that atoms are indivisible
<u>Explanation:
</u>
The law of conservation of mass tells that atoms in an object neither can be created nor be destroyed, but they can be transferred around and transformed into various particles. Also, it says that the total mass preceding the chemical reaction corresponds to the total mass after the chemical reaction.
In other words, the mass remains intact. Lavoisier formulated this law as a result of a combustion experiment in which he stated that the weight of his starting material - a glass jar, tin and air - was equal to the mass of the material produced - a glass jar, "Tin calcium" and the rest of the air.
The term "atom" arrives from the language of Greek and means indivisible, because atoms were thought to be the tiny things present in the universe and could not be divided. But not familiar that atom comprises with three particles: proton, neutron and electron- even tiny particles like quarks.
Answer:
GPE = 199.92 Joules
Work = 199.92 Joules
Explanation:
A 5.1 kg beer cub weighs 49.98N
Mg = F
g = F/M
g = 49.98/5.1
g = 9.8 m/s²
GPE = mgh
GPE = 5.1 * 9.8 * 4
GPE = 199.92 Joules
The work done by the mother is equal to the GPE , because
Force*distance = work
Force = 49.98N
Distance = 4m
Work = 199.92 Joules
