Which tools would sara us to find an irregularly shaped objects mass and volume a. a meter stick , a ruler , and water
b. a meter stick, a balance, and water
c. a balance, water, and a ruler
d. a balance, water, and a beaker

What happens to the light rays when they hit the specimen?

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.