Students used different sized graduated cylinders to measure the amount 4 points of a solutions. Each student measured the solution three times. Here are
their results: Patrick measured 57 ml, 59 ml and then 58 ml. Sandy
measured 60ml, 70ml and 65ml. Gary measured 50.1 ml, 50.2 ml and 50.1
ml. The teacher, Mr. S. Bob determined the correct amount to be 58 ml.
Which student was most accurate? *

Which two particles are found in the center of an atom

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?