B. Amplitude
It is the maximum distance from the equilibrium point of the pendulum.
Objects absorb and reflect light differently depending on their physical characteristics, such as their shape or composition. Thanks to the reflection we can see the objects. Reflection can be defined as the change of direction of a wave, which, when in contact with the separation surface between two changing means, returns to the point where it originated. When the light illuminates the object, such as the tree, the rays of light will disperse in all directions allowing observation.
The correct answer is A. From every point on the surface of the tree, and in every direction
Answer:
Igneous rock
Explanation:
Igneous rocks are formed through the cooling and solidification of magma. It undergoes changes in temperature and pressure that causes it to cool, solidify, and crystallize.
Concave lens. These are used in making the objectives of reflection telescopes
Answer:
Option d is correct.
The magnitude of the resultant force upon the piling = 2930 lbs.
Explanation:
Resultant of a group of forces = vector sum of the forces.
Force 1 = (-1250î) lbs
Force 2 = (2650j) lbs
Resultant = (-1250î + 2650j) lbs
The magnitude of the resultant = √[(-1250)² + (2650)²] = 2930 lbs.
Or in visualization method, the two forces presented form a right angled triangle with the resultant of the two forces.
Hence, using Pythagoras theorem,
F₁² + F₂² = R²
(1250)² + (2650)² = R²
R = √[(1250)² + (2650)²] = 2930 lbs.
