Study the flowchart. The flowchart shows you all the steps to building a good working model of something. What steps lead to making improvements to a model?

In what direction do westerlies blow?

How do you think a person with restricted arteries would feel while lifting a heavy object?

A 1.88-mole sample of an ideal gas is contracted at a constant temperature of 298 K. The initial volume is 24.5 L and the amount of work performed on it is 1040 J. What is the final volume? Let the ideal-gas constant R = 8.314 J / (mol • K). a. 19.

how do scientists know that black holes exist A. by running experiments on the sun B. by observing objects and light around black holes C. by viewing black holes with powerful telescopes D. all of the above E. none of the above

What is the density of an unknown metal that has a mass of 158 g and a volume of 20 ml

Why is accuracy important in dodgeball?

A pipe has a length of 1.29 m. Determine the frequency of the first harmonic if the pipe is open at each end. The velocity of sound in air is 343 m/s. Answer in units of Hz.

The half-life of plutonium-238 is 87.7 years. What percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.

Charge q is 1 unit of distance away from the source charge S. Charge p is four times further away. The force exerted between S and q is ___ the force exerted between S and p. 1/4 1/16 16 times 4 times

A 21.7kg child descends a slide 3.5 m high and reaches the bottom with a speed of 2.2m/s. How much thermal energy due to friction was generated in this process?