What are some environmental hazards of using hydroelectricity

A child in a boat throws a 5.90-kg package out horizontally with a speed of 10.0 m/s. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 28.0 kg and that of the boat is 35.0 kg.

Forces of attraction between particles is the smallest in gas solid and liquid liquid solid

If you have a block of wood that is 4cm wide, 6cm long and 10cm high and it weighs 100 grams what would happen to the volume if yhe wood block is cut into 2 equal halfs

A driver looks at her dashboard and reads that she is traveling at 100 kilometers per hour. What does this measurement represent? A) time B) distance C) average speed D) instantaneous speed

2 Cars A and B both at rest are to set of from a town to a common destination along the same route. Car A was the first to take off and travelled at 2.

A wave with a speed of 437 m/s has a frequency of 28 hertz. What is the length of the wave?

Which situation is contrary to Newton's first law of motion? An object at rest begins to move when an external force is applied. A moving object has a constant velocity under the influence of balanced forces.

Since you've determined that the power supply is a 700W dual rail, what does that make the maximum output power?

A 2 m length of an aluminum pipe of 240 mm outer diameter and 10 mm wall thickness is used as a short column to carry a 640? centric axial load. Knowing that? = 73? P? and? = 0.

A python can detect thermal radiation from objects that differ in temperature from their environment as long as the received intensity of thermal radiation is greater than 0.60 W/m2. Your body emits a good deal of thermal radiation.