There
are five layers of the atmosphere and these are; troposphere, stratosphere,
mesosphere, thermosphere and exosphere. The first layer, troposphere, is where
we are able to do most of our activities. This is where we can see the formation
of clouds, the production of rain, hail, snow and other weather phenomenon.
Also, this layer is where the greatest amount of air pressure because most of
the molecules of air are in this area. Like us, air has also mass and the
pressure is brought down by the earth’s gravity causing an increase in weight
exerted on you as you descend lower into the atmosphere. So, as you enter into
the other layers of atmosphere above the troposphere, the air pressure starts
to decrease. <span>Below the atmosphere
is the hydrosphere. This is where all liquid forms are located. And since the
seawater has a greater mass than air, it has the greatest pressure. </span>
Answer:
tension far end 883.055714 N
tension closer 578.634286 N
Explanation:
Given data
scaffold mass m1 = 64 kg
scaffold length L1 = 6.3 m
window washer mass m2 = 85 kg
distance L2 = 2 m
to find out
tension near cable and farther cable
solution
torques at the end farthest
(m1 × g × L1 ) / 2 + (m2 × g × L1- L2 ) = T × L1
T × 6.3 = (64 × 9.81 × 6.3 ) / 2 + (85 × 9.81 × 4.3 )
T = 5563.251 / 6.3
tension = 883.055714 N
and
torques at the other end,
(m1 × g × L1 ) / 2 + (m2 × g × L2 ) = T × L1
T × 6.3 = (64 × 9.81 × 6.3 ) / 2 + (85 × 9.81 × 2 )
T = 3645.396 / 6.3
tension = 578.634286 N
Answer:
Explanation:
Kinetic energy can be found using the following formula:
where <em>m </em>is the mass and <em>v</em> is the velocity.
The mass of the ball is 0.5 kilograms and the velocity is 15 meters per second
Substitute the values into the formula.
First, evaluate the exponent.
- (15 m/s)²= (15 m/s) * (15 m/s) = 225 m²/s²
Multiply 0.5 kg by 225 m²/s²
Multiply 112 kg*m²/s² by 1/2, or divide by 2.
- 1 kg*m²/s² is equal to 1 Joule
- Therefore, our answer of 56.25 kg*m²/s² is equal to 56.25 Joules.
The kinetic energy of the ball is <u>56.25 Joules</u>
Answer:
Explanation:
Given,
Radius R = 6 feet
Height H = 9 feet
Depth of the water = 5 feet
Volume of right circular cylinder,
Differentiate with respect to the H
Now,
Hence, the rate of chage of height of water is 0.044 feet per min.
The relationship between gravitational force and distance of separation is an "inverse relationship".
<u>Explanation:</u>
Gravitational force has been explained by "Newton's Universal Law of Gravitation" which says "In this universe every single particle attract every other particle with a force which directly proportional to the product of their masses while inversely proportional to the square of the distance in between them".
The gravitational force is inversely proportional to square of distance because as the distance between the objects with masses increases the force decreases. The gravitational force between any two objects with masses can be understood by given formula:
Here the F is gravitational force,
G is the gravitational constant =
are the masses of the two objects
d is the distance between two objects.