Answer:
G is universally constant
Explanation:
The Gravitational constant G, is a proportionality constant for all objects in the universe with a value of ; G = 6.67*10^-11 m³kg^-1s^-2.
According to the the Newton's Law of Universal Gravitation ; Every object in the universe attracts one another with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distances between them.
F α m1m2 α 1/r²
F α m1m2/r²
F = Gm1m2 / r²
m1 and m2 are the masses ; r = distance between them
G = Gravitational constant.
Answer:
Frequency=10 Hz
Period=0.1 s
Explanation:
Frequency of a wave is the number of complete cycles per unit time. Usually, frequency is cycles per second, with unit as Heartz
Given cycles of the wave as 200 and time as 20 seconds
Frequency=200÷20=10 cycles per second
Therefore, frequency is 10 Hz
Period is usually the reviprocal of frequency hence reciprocal of 10 Hz will be 1/10=0.1 s
Answer:
The distance close to the sidewalk can the flower pot fall is
x = 14.83 m
Explanation:
Given
Δt = 0.300 s
d = 19.6 m
h = 1.79 m
Knowing as the velocity of the sound as a 330 m/s
t = (19.6 - 1.79)m / 330 m/s
t = 0.0539 s
Total time
tₙ = 0.3 + 0.0539 = 0.3539 s
Time for flower-pot
s = ¹/₂ * g * t²
tₐ = √[(2 * 17.81m)/9.81m/s²]
tₐ = 1.34 s, t' = 0.3539
1.34 - 0.3539 = 0.9861 s
19.6 m - x = ¹/₂* g * t ²
x = 19.6 - ¹/₂ * (9.81) * (0.9861)²
x = 14.83 m
Answer:
Final image size is increasing and it is moving away from the focus on the other side
Explanation:
As the object is moving towards the focus of the lens
Then the size of image will start increasing and also the image is formed between focus and double focus point
So we can say that size of image will start increases and the position of image is start moving away from the focus on the other side of the lens
In both the case the image must be Real and diminished and its size is start increasing due to the formula
[tex]M = \frac{d_i}{d_o}[/tex
So here present
Final image size is increasing and it is moving away from the focus on the other side
Answer:
The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.