statistics
The reaction time of subjects to a certain psychological experiment is considered to be normally distributed with a mean of 20 seconds and a standard deviation of 4 seconds. What is the reaction time such that only 10% of subjects are faster?
statistics
Entry to a certain University is determined by a national test. The scores on this test are normally distributed with a mean of 500 and a standard deviation of 100. Tom wants to be admitted to this university and he knows that he must score better than 70% of the students who ...
Physics
A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.
Chemistry
What mass of Uranium (in mg) is contained in 1ml of 4.55M (UO2)3(PO4)3 solution? How do I solve this? *all numbers are subscripts
physics what am i doing wrong?
I figured it out......i dont understand why no one has helped me yet in the past week
physics what am i doing wrong?
Three masses are arranged in the (x, y) plane. 3kg (0,0) 7kg (10,0) 6kg (0,3) What is the magnitude of the resulting force on the 3 kg mass at the origin? The value of the universal gravitational constant is 6.6726 × 10^−11 N · m^2/kg^2. Answer in units of N...
can someone please help w/ physics?
anybody? please?
can someone please help w/ physics?
An object of mass 154 kg moves in a smooth straight tunnel of length 2990 km dug through a chord of a planet of mass 3.19 × 10^24 kg and radius 1 × 10^7 m Find the effective force constant of the harmonic motion. The value of the universal gravitational const...
english
Ms. Sue can you please check for #1 The Gerund Phrase is water skiing , sailing, and swimming Direct Object ?
PHYSICS!
An object of mass 154 kg moves in a smooth straight tunnel of length 2990 km dug through a chord of a planet of mass 3.19 × 10^24 kg and radius 1 × 10^7 m Find the effective force constant of the harmonic motion. The value of the universal gravitational const...
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