Tuesday
May 21, 2013

# Posts by Danielle

Total # Posts: 626

math
Given the sequence 17, 21, 25,...589 a) Find the 123rd term in this sequence.

Math
Seven standard, six-sided dice are rolled, one after the other. What is the probability that: a) exactly one of them shows a six? c) there is at least one that shows a six?

physics
How far (in meters) must a 800 kg pile driver fall, if it is to do 18000 J of work?

Chemistry
what will be the final temperature if 2000g of copper at 95 degrees loses 10 kcal of heat?

chemistry
The pH of 6.0 M KOH is 13.78. What is the hydrogen ion concentration of this solution

Chemistry
What is the wavelength of a broadcast frequency of 992 kHz? -a nuclear magnetic resonance spectrometer frequency of 400 MHz -radiation that has a frequency of 5.2x10^14(s^-1)

Geometry
Angle 1 is supplementary to angle 2. If m<1 = (12x + 6) and m<2 = (4x - 34), what is the value of X and the m<1 ?

physics
Spymaster Paul, flying a constant 215 km/h horizontally in a low flying helicopter, wants to drop secret documents into his contact's open car which is traveling 155 km/h on a level highway 78.0 m below. At what angle ( to the horizontal) should the car be in his sights wh...