1)A man flips a coin and catches it after 3.0s. A) What was the velocity the coin was launched at and what height did the coin reach? (Ans. A)15m/s B)11m) SHOW WORK PLS
2)A Delivery Drone is ascending vertically with a speed of 5.20m/s. When the Drone reaches an Altitude of 125m it drops its package. How long will it take the package to reach the ground? (Hint: Choose down to be the positive direction) (Ans. 5s) SHOW WORK PLS

Which scientist was the first to propose the heliocentric model of the universe? a. aristotle b. isaac newton c. galileo galilei d. nicolaus copernicus

Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.

Which is not true of alpha radiation? o a. it increases the number of protons. o b. it has a positive charge. o c. it causes transmutation. o d. it is heaviest of the three types