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A half-wave rectifier circuit is used to charge a battery
of e.m.f. 12 V and negligible internal resistance. The
sinusoidally varying alternating supply voltage is 24 V
peak. Determine the value of resistance to be connected
in series with the battery to limit the charging
current to 1.0 A. What peak current would flow in
the diode if the battery were reversed?
Two parallel metal discs, each 100 mm in diameter, are spaced
1.0 mm apart, the dielectric being air. Calculate the force, in newtons,
on each disc when the p.d. between them is 1.0 kV
A solid/homogeneous cylinder with a mass of 1.5 kg and a radius of 12 cm is started
(without sliding) upwards an inclined plane with an inclination angle of 28◦ . The starting speed of the cylinder
mass center is 5.0 m/s.
(a) Draw a figure showing the forces acting on the cylinder as it travels
up the inclined plane.
(b) Which direction does the friction force point when the cylinder is on its way down
the inclined plane? Is the same or opposite direction as when the cylinder is on
way up? Explain your answer.
(c) Find the acceleration of the center of mass along the inclined plane.
(d) How far up the inclined plane does the cylinder roll before it turns
A. Alfred Russell Wallace 1823-1913
B. Charles Darwin 1809-1882
1. On the Origin of Species, 1859
C. FARM (Fish Amphibians Reptiles Mammals)
http://www.eudesign.com/mnems/vertibra.htm
(This is a link merely for the purpose of showing this mnemonic about
how vertebrate evolution unfolded.)
D. Dark Side of Evolution
1. Sir Francis Galton 1822-1911
2. Eugenics
the science of improving a human population by controlled breeding to increase the occurrence of desirable heritable characteristics. Developed largely by Francis Galton as a method of improving the human race, it fell into disfavor only after the perversion of its doctrines by the Nazis.
3. Buck v Bell (1927)
Buck v. Bell, 274 U.S. 200 (1927), is a decision of the United States Supreme Court, written by Justice Oliver Wendell Holmes, Jr., in which the Court ruled that a state statute permitting compulsory sterilization of the unfit, including the intellectually disabled, “for the protection and health of the state” did not violate the Due Process clause of the Fourteenth Amendment to the United States Constitution.[1] The Supreme Court has never expressly overturned Buck v. Bell.[2]
III. Creationism and Intelligent Design
Christopher Ehret’s Presentation on Languages
Watch the video at this link, and use it to answer the questions below:
Watch the following video in order to respond to what follows.
The Agricultural Revolution: Crash Course World History #1
Watch the following videos in order to respond to what follows.
CNN – Eugenics In America With Forced Sterilization
Part 1: Buck v. Bell: SCOTUS Case That Led to Forced Sterilization of 70,000 & Inspired the Nazis
https://www.youtube.com/watch?v=FLM8dkIsHS0
Also, please watch these videos on Egypt and Mesopotamia as
introductions to the subjects:
Ancient Mesopotamia 101 | National Geographic
https://www.youtube.com/watch?v=xVf5kZA0HtQ
Ancient Egypt 101 | National Geographic
https://www.youtube.com/watch?v=hO1tzmi1V5g
Apple II
Altair 8800
Discuss
Preparation
Procedures
technique
Parts lb machine
J curve and formula ( chart/picture)
Discuss
Preparation
Procedures
technique
Parts lb machine
J curve and formula ( chart/picture)
How the strength of the magnet varies with different temperatures applied
Section 1 – From the left of the screen to the right, the red balls have a center of mass placed at 20 feet, 15 feet, and 10 feet high respectively.
Suppose each red ball weighs 20 lbs. Find the potential energy (PE) for each ball on each ramp. In this lab mass is given in pounds and height is in feet, so use 32.2 ft/sec2 as the gravitational constant. Your answer will be in foot-pounds since US units are being used.
PE = m g h where g = 32.2 ft/sec2
Ramp 1:
Ramp 2:
Ramp 3:
Predict the maximum speed (velocity) of each ball on each ramp. How would this speed change if each ball’s mass was doubled? ASSUMPTION: assume there is no friction and that all the potential energy you calculated in question 1 is transformed into kinetic energy – PE = KE. Use the following equation.
KE= ½ m v2
You want to calculate v maximum speed
v = [KE/ ½ m]½
This means divide the KE by half the mass and then take the square root.
Max v for 20 lb. ball
Max v for 40 lb. ball
Where would you place yourself on the Kinsey scale? How did you come to that conclusion? Cite if necessary.
Here is the link for Kinsey scale test: http://vistriai.com/kinseyscaletest/
Discuss the Development of efficiency curves of pump as turbine (PaT) and their cost-benefit comparison to conventional turbines