Hi partial sum addition I have a problem 245 + 92 is 200 + 90 or do I do 200 + 100

What must you do before you make a hypothesis? a) Run the experiment b) Research information about your question. c) Form a theory. d) Draw conclusions

Dropping a stone from a height is work or not?

Two things that electrical force depends upon?

What is the density of a piece of obsidian that has a mass of 239.2 g and a volume of 92cm3

Do all tectonic plates form a continent?

You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. Calculate the energy.

Three ideal polarizing filters are stacked, with the polarizing axis of the second and third filters at 21 degrees and 61 degrees, respectively, to that of the first. If unpolarized light is incident on the stack, the light has intensity 60.

What does an electric current produce

A series circuit contains three 2 Ω resistors and a 6 Ω resistor. The current in each resistor is 4.0 A. What is the voltage of the battery in the circuit? 2.0 V 3.0 V 32 V 48 V

A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1 m, they both have the same?