Thursday
December 12, 2013

# Posts by Brooke

Total # Posts: 535

English
A countable noun are nouns we can count such as pen, coin, cup, plate, dog etc. An uncountable noun are subtances meaning like milk, electricity, gas, water, rice, music, love etc.

math
Add the two hours together.

math
You actually multiplied wrong, because 5*12.95= 64.75 not 64.92. The answer I got from the structure you wrote was \$3.89 Thanks though! It really helped!

math
Ben purchased 5 shirts for \$12.95 each. How much sales tax will he pay if the tax rate is 6%?

physics
A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 16 rpm in 11.5 s. Assume the merry-go-round is a uniform disk of radius 3.0 m and has a mass of 790 kg, and two children (each with a mass of 25 kg) sit opp...

physics
An 85 kg football player traveling 4.7 m/s is stopped in 1.0 s by a tackler. What is the original kinetic energy of the player? (I tried using 1/2 m v^2 but that doesn't seem to be right. How do I manipulate the formula?) What average power is required to stop him?

Chemisty
Write all possible quilibrium equations for KHP dissovled in water and then write the quilibrium constanst expressions for the equation.

Psysics (Magnetism)
A current-carrying wire is placed in a uniform magnetic field, but there is no magnetic force on it. How is this possible?

physics
An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 1.7 multiplied by 10-14 m from the gold nucleus? N

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