A tank is full of water. Find the work W required to pump the water out of the spout. Use 9.8 m/s^2 for gg and 1000 kg/m^ 3 as the weight density of water. Assume that a=4 m, b=4 m, c=9 m.

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

In a system, when potential energy decreases, then entropy also decreases. true false

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?