Chemistry
What will be the final temperature if 2000g of copper at 95 degrees loses 10 kcal of heat?
Chemistry
If the decomposition of 3.785 g iron (III) chloride yields 1.302 g iron and 2.483 g chlorine, how many grams of iron and chlorine are produced when 2.175 g iron (III) chloride decomposes?
8th grade
How can I get rid of the -x this is the problem -x-6=-5 Thanks
physiscs
so what?
physiscs
a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator starts the free fall. What is the period of the pendulum if the eleva...
statistics
0.4
physics
Soccer player #1 is 8.6 m from the goal. If she kicks the ball directly into the net, the ball has a displacement labeled A. If, on the other hand, she first kicks it to player #2, who then kicks it into the net, the ball under goes two successive displacements, Ay and Ax. Wha...
physics
Given the quantities a = 9.7 m, b = 4.2 s, c = 69 m/s, what is the value of the quantity d = a^3/(cb^2)?
physics
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 85.0 m. In part a the person is looking at the base of the antenna, and his line of sight makes an angle of 35.0 wi...
geometry
Center and radius of x^2 + y^2 – 4y = 0.
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