Water flows at 0.68 m/s through a 3.0 cm diameter hose that terminates in a 0.35 cm diameter nozzle. assume laminar non-viscous steady-state flow.

The advantage of using the scientific method is that A: it's cautious building of evidence-based understanding is dependable and logical.

As a ball falls, does the potential energy go up or down?

When you hit a nail into a board using a hammer the head of the nail gets warm. In terms of kinetic and thermal energy describe why you think this happens?

Refraction occurs when a wave strikes an object and bounces off. True False

If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that a. seems to come from behind the surface. b. has a higher intensity than the sound produced by the source. c.

What is Nothing. (sorry i have been wondering this for a very long time)

What is the weight of a 15kg dog on earth?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.

Explain what each of the following scientists contribute to the atomic theory

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.