The Earth slows in rotation by 1.4×10-3 seconds over
around 100 years. If this energy is...
The Earth slows in rotation by 1.4×10-3 seconds over
around 100 years. If this energy is transferred to the Moon, how
much further away does the Moon every year?
Solutions
Expert Solution
Then moon's distance from the earth will increase by an amout
2.65 cm in each year.
The Earth slows in rotation by 1.4×103 seconds over around 100
years. If this energy is transferred to the Moon, how much further
away does the Moon every year?
Your evil roommate creates a device that slows the rate of
rotation of planet Earth from a 24-hour period of rotation to a
48-hour period of rotation. Holy cow evil roommate, this is
extreme! Given that each day is now 48 hours long, predict how the
difference between daytime high and nighttime low temperatures at
the equator would change. How do you think this would affect the
plants growing at the equator?
1. Life on Earth was pretty simple for over 3 billion years....
then suddenly, around 530 million years ago, a huge diversity of
animal forms suddenly (~10 million years time) appear in the fossil
record. What might have caused animal forms to appear form?
2. 20% of all animal species are beetles! New species of animals
are still being found, mostly invertebrates. How many species do
scientists believe are out there?
In your own words describe the rotation of the earth and
its revolution around the sun in terms of the Foucault Pendulum
experiment and parallax and the aberration of
starlight.
Why the Earth rotation induces weather conditions around
us?
Please, for better understanding I need a detailed description.
May be some examples in nature, schemes, and some description based
on basic relations. I want to understand it very well. Would be
nice to get some additional sources to read (books or
articles).
Reaction times are normally distributed with mean 100
seconds and standard deviation of 10
seconds.
a) What is the probability that a randomly chosen
individual has reaction time of more than 45 seconds?
b) In a random sample of 36 individuals from the above
population of reaction times, what is the probability that the
sample mean reaction time is more than 45 seconds
You pick up two dice, shake them around, and then over the
course of 0.08 seconds throw them horizontally over a table,
providing them with horizontal speeds of 0.6 and 0.5 m/s
respectively. If the mass of each die is 3 grams, with what total
force did you supply to the dice? (Consider that this is also the
total force exerted back upon your hand by the dice.)
Report the value in millinewtons rounded to the nearest
whole number.
The Earth has an angular speed of 7.272·10-5 rad/s in
its rotation. Find the new angular speed if an asteroid (m
= 3.91·1022 kg) hits the Earth while traveling at a
speed of 2.87·103m/s (assume the asteroid is a point
mass compared to the radius of the Earth) in each of the following
cases:
a) The asteroid hits the Earth dead center.
b) The asteroid hits the Earth nearly tangentially in the
direction of Earth's rotation.
c) The asteroid hits...
The Earth has an angular speed of 7.272·10-5 rad/s in its
rotation. Find the new angular speed if an asteroid (m = 4.87·1022
kg) hits the Earth while traveling at a speed of 4.93·103 m/s
(assume the asteroid is a point mass compared to the radius of the
Earth) in each of the following cases:
a) The asteroid hits the Earth dead center.
b) The asteroid hits the Earth nearly tangentially in the
direction of Earth's rotation.
c) The asteroid...
Around 650 million years ago, the Earth was covered from pole to
pole with glaciers during a period referred to as Snowball Earth.
Identify and describe a set of 3 realistic global scale feedback
mechanisms that address the following:
a. A feedback mechanism that allowed the Earth to descend into a
global glaciation
b. A feedback mechanism that kept the Earth in a permanent
glaciation for millions of years
c. A feedback mechanism that allowed the Earth to escape from...