Math
a merry-go-round has a radius of 20 ft has a duration per ride of 15 revolutions. How far does a person travel who rides on the merry-go-round? (use 3.14 for pi)
science
what is a form of energy that is always transferred from a warmer substance to a cooler one?
math
Each day, Mr. Samms randomly chooses 2 students from his class to serve as helpers. There are 15 boys and 10 girls in the class. What is the probability that Mr. Samms will choose 2 girls to be helpers
US/ 101Week 5 DQ4
Have you ever used mnemonics to remember something complicated? If so, describe these techniques. How might you use mnemonics to be a more effective college student and adult learner?
chemistry
Archimedes used density along with mass and volume of alloys (mixtures) of gold and silver to determine the percent of gold (and also silver) in these alloys by simple, non-destructive measurements. Prove that the mass of gold in a given mass of silver alloy is given by the eq...
science
water'density is __ so objects that are less than __ float and objects that are more than__sink.
Physics
A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 9.00×10−3 {\rm m/s^2} less than that at sea level.What is the observatory's altitude?
physics
This is an energy problem. Because we are given mass and velocity we know to use the formula for kinetic energy. KE=1/2(mass)*(velocity)^2 KE=1/2(82 kg)*(6.0 m/s)^2 KE=1476 J
History
3) The evolution of the socio-political milieu during the colonial period, including Protestant Christianity’s impact on colonial social life. how did it protestantism impact work ethic and how did politics evolve on the early colonial period
physics
The voltage across the terminals of a 8.90 V battery is 8.00 V when the battery is connected to a 50.0 \Omega load.What is the battery's internal resistance?
For Further Reading
