Tuesday
June 18, 2013

# Posts by Anna

Total # Posts: 1744

physics
What is the magnitude of the electrostatic force that the two protons inside the nucleus of a helium atom exert on each other? Why do atomic nuclei not simply explode?

physics
If we wanted a block of iron of mass 3.25 kg to acquire a positive charge of 0.100 C, what fraction of the electrons would we have to remove?

physics
Consider a battery that has Vt = 12.0 V when it is not connected to a circuit. When a 10.0- resistor is connected with the battery, the potential difference across the battery’s terminals drops to 10.9 V. What is the internal resistance of the battery?

Science
i dunno....

math
the second largest six-digit number in which no digit appears more than three times

science
Lithium fluoride has a Ksp of 1.84 x 10-3. If 1.5 g are dissolved, what will be the percent ionization?

chemistry
if 14.7g of na reacts with 7.9g og br how many grams of nabr are found

Physics
An object is thrown upwards at an initial speed of 19.6 m/s from a height of 65m. Determine how long will take for the object to reach the ground (time of flight). what formula should i use?

Math
When dealing with linear equations, what does consistent, inconsistent, dependent, and independent mean? I'm so confused!

math
shoshanna is going to use 12 base ten blocks to model the largest possible number less than 999.Then she will use another 12 blocks to model the smallest possible number less than 999.what are the 2 numbers?

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