D. None of the above if you use 9.81 m/s2 as earth's gravitational constant. C if you use 10 m/s2 anf B if you dont count the earth spinning and moving. B and C for g= 10 m/s2 and D for g= 9.81 m/s2 (Using this is way better)
Answer: A) = 564.4 N
B) = 374 N
Explanation: The ladder forms with the wall a right triangle, with one unknown side. To find it, use Pythagorean Theorem:
side =
side = 1.65
Tom's weight is a vector pointing downwards. Since he is at an angle to the floor, the gravitational force has two components: one that is parallel to the floor () and othe that is perpendicular (). These two vectors and weight, which is gravitational force, forms a right triangle with the same angle the ladder creates with the floor.
The image in the attachment illustrates the described above.
A) = P sen θ
= 680.
= 564.4 N
B) = P cos θ
= 680.
= 374 N
Answer 60 NEWTON
Explanation:
FORCE = MASS * acceleration
acceleration= VELOCITY / TIME
acceleration= 30 / 10 = 3 M/S2
FORCE = MASS * acceleration
FORCE = 20 *3 = 60 NEWTON
Frequency refers to how often something happens. Period refers to the time it takes something to happen. Frequency is a rate quantity. Period is a time quantity. Frequency is the cycles/second
Water breaking down into hydrogen and oxygen is a decomposition reaction.
<span>Hydrogen and oxygen combining to form water is a synthesis reaction.</span>