Answer:
d = 100.56 m
Explanation:
It is given that,
Force acting on the dog is 22.4 N
Angle at which the force is applied is 115 º
Work done is - 42.3 J
We need to find the distance covered by the dog. The work done by an object is given by :
d = distance covered by the dog
So, the dog moves a distance of 100.56 m.
Answer:
Formation. Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. ... When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material. At the center, gravity pulled more and more material in.
Explanation:
Answer: 1.02 x 10^-2 N/C to the east
Explanation:
Hi,
To find the magnitude of the electric field in this problem, you simply have to use the formula F = qE
F = Force
q = charge of the particle
E = magnitude of the electric field
Here, we are told that a force is being acted on an electron and we aren't told any specific quantity of charge for the electron. Therefore, we can assume that the charge of the electron will be its conventional charge of 1.602 x 10^-19 C
We are also given the force which is 1.64 x 10^-21 N
We solve for E
E = F/q
We plug in
E = (1.64 x 10^-21 N)/(1.602 x 10^-19 C)
E = 1.02 x 10^-2 N/C
The direction will be the east because the angle didn't change.
Answer:
Hydrogen and Helium (amongst many others present)
Explanation:
<u>Generally speaking the universe consists of rather large amounts of empty spaces</u>, also known as voids. As we know, our total existance and everything in it (i.e. the Cosmos) is primarily made of significantly small particles (also known as<u> atoms</u>), that are energy filled. However, even among those particles we observe large empty spaces. You can think of it as a <u>'vacuum'</u> that consists of elements such as hydrogen and helium plasma, numerous particles of low density levels, along with cosmic rays, neutrinos, dust but also electromagnetic radiation and magnetic fields. From all these elements present, scientists conclude that the most predominant are in fact the Hydrogen and Helium.
<em>Fun Fact: It has been concluded that in the Cosmos, more than 99% of the cosmic matter is in fact an empty space!! </em>