From the earth, the moon subtends an angle of approximately 0.5°. If the distance to the moon is approximately 240,000 miles, fi
2 answers:
The approximation for the diameter of the moon accurate to the nearest hundred miles is s = +- 2100 miles
<h3>Further explanation </h3>Arc Measure definition is, in a circle, arc degree measure is equal to the measure of the central angle that intercepts the arc. Whereas the arc Length definition is, In a circle, the length of an arc is a portion of the circumference. Where the letter "s" is used to represent arc length.
(Radian Measure and Arc of a Circle).
There is a formula which relates the arc length of a circle of radius, r, to the central angle, θ in radians.
The radian measure θ of a central angle is defined as the ratio of the length of the arc the angle subtends s, divided by the radius of the circle r.
where s = the arc length
= angle in radians
or
So the approximation for the diameter of the moon accurate to the nearest hundred miles is s = +- 2100 miles
<h3>Learn more</h3>- Learn more about the radian measure of the angle brainly.com/question/4675968
Grade: 9
Subject: physics
Chapter: the radian measure of the angle
Keywords: moon
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Answer:3.6
Explanation:
Given
Architect decide to double the width
length increases by 50 percent
height increases by 20 percent
Let L,B,H be length,height and width of rectangular room
L'=1.5L
B'=2B
H'=1.2H
therefore new volume V'=L'\times B'\times H'
V'=3.6LBH
new volume is 3.6 times the original
The energy of the ski lift at the base is kinetic energy:
where m is the mass of the ski lift+the people carried, and
is velocity at the base.
As long as the ski lift goes upward, its velocity decreases and its kinetic energy converts into potential energy. Eventually, when it reaches the top, its final velocity is v=0, so no kinetic energy is left and it has all converted into gravitational potential energy, which is
where
and h is the height at the top of the hill.
So, since the total energy must conserve, we have
and so
from which we find the height:
where m is the mass of the ski lift+the people carried, and
As long as the ski lift goes upward, its velocity decreases and its kinetic energy converts into potential energy. Eventually, when it reaches the top, its final velocity is v=0, so no kinetic energy is left and it has all converted into gravitational potential energy, which is
where
So, since the total energy must conserve, we have
and so
from which we find the height:
- initial velocity=u=0m/s
- Final velocity=v=4m/s
- Time=t=2.5s