A 30 g block is placed on an inclined plane with a velocity of 3 m/s. The inclined plane is elevated at an angle of 40 degrees with the ground. The plane is 50 cm high. What is the velocity of the block when it reaches the bottom of the inclined plane?

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?