An object of mass 13kg is falling in air and experiences a force due to air resistance of 9N. Determine the magnitude of net force acting on the object.
Answers
Given data
mass (m) = 13 kg
F₁ = 13 × 9.8 = 127.4 N
air resistance (F₂ ) = 9 N, acts in opposite direction
Net force is defined as sum of all forces
Fnet = F₁ - F₂
= 127.4 - 9
= 118.4 N
Net force acting on the object is 118.4 N
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Which of these is a concave lens?
QUESTION IN THE ANSWER!!!!! HELP HELP PLEASE
2 PointsWhich of the following statements are not true about gravity? Check all thatapply.A. Gravity exists only on Earth.OB. Gravity exists between two objects that have mass.OC. Gravity is a force that pulls two objects together.D. Gravity exists in the whole universe.E. Gravity doesn't exist between Earth and the sun.
Answers
If we say that one quantity is directlyproportional to another quantity, we do not mean they are equal to each other.
DIRECT PROPORTION:
- The term "direct proportion" refers to the relationship between two variables in which a change in one causes a similar change in the other.
- This means that when two quantities are directly proportional to one another, one quantity increases as the other increases and vice versa.
- For example, if quantity A is directlyproportional to quantity B;
- when quantity A increases, quantity B also increases
- when quantity A decreases, quantity B also decreases.
- Therefore, If we say that one quantity is directly proportional to another quantity, we do not mean they are equal to each other.
Learn more at: brainly.com/question/14664532?referrer=searchResults
NO !
It means that (one of them) divided by (the other one) is always the same number.
(Other people probably won't explain it to you this way, but I'm special, and this is true.
Anyway, the direct answer to your question is: No.)
Answers
Answer:
Seatbelts stop you
Explanation:
Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts.
4 J
B.
40 J
C.
400 J
D.
4000 J
Answers
The correct answer to the question is C) 400 J.
CALCULATION:
As per the question, the force applied on the block F = 40 N.
The distance travelled by the block S = 10 m.
We are asked to calculate the work done by the block.
The work done by a body under a force F is calculated as -
Work done W =
=
Here, is the angle between force and displacement.
If , then work done W =
= FS. [ cos0 = 1]
Hence, the work done by the block W = FS
= 40 N × 10 m
= 400 Joule. [ans]
Here, Joule is the unit of work.
Hence, the work done by the block s 400 Joule.
Answers
Answer:
Catch the wave.
The shape and curves are designed to capture sound waves from various directions and funnel them into the ear to start vibrating those ossicles. Cupping your hand behind the ear and pulling it forward makes sounds louder because your hand is snagging more sound waves.
Explanation:
It will receive more sounds
Answers
Hope this is what you are looking for!
Answers
chemical, then thermal, then to radiant.
I hope thats right. :)