Water waves approach an underwater "shelf" where the velocity changes from 2.8 m/s to 2.1 m/s. If the incident wave crests make a 34o angle with the shelf, what will be the angle of refraction?

Write a hypothesis for this. Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce the production of body gas associated with eating crabby patties from the Krusty Krab.

A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill. at what speed would the car be traveling when it tires just barely lose contact with the road when the car is at the top of the hill?

If it takes 100 N to move a box 5 meters, what is the work done on the box? A. 500 J B. 20 J C. 5 J D. 5,000 J

Energy transformed by a moving object is

A railroad car of mass 2,000 kg traveling at a velocity v = 10 m/s is stopped at the end of the tracks by a spring-damper system, as shown in fig. 1. if the stiffness of the spring is k = 80 n/mm and the damping constant is c = 20 n-s/mm, determine:

Which of the following best describes a mechanical wave? A. A periodic disturbance of a medium. B. A movement of matter. c. A transfer of energy. D. When energy is converted from one form to another.

What is a 2d game. Give a refrence.

Two exactly similar wire of steel and copper are stretched by equal force. if the total elongation is 10cm. find how much each wire is elongated given young's modules for steel = 2*10^10 N/M^2 and Young's modules for copper 2*10^10N/M^2.

Which of the following is the FINAL step in a forecasting system? A. Validate and implement the results. B. Make the forecast. C. Select the forecast model (s). D. Gather the data needed to make the forecast.

Resistors in parallel together contain less resistance than resistors in series together. Create an analogy to explain this phenomena and post it here.