A wave of water moving up a river, initiated by tidal action and normal resonances within a river estuary, is called a:

Simple curiosity is not a legitimate reason to complete a scientific investigation. true or false?

One pipe has successive harmonics of 165 Hz, 275 Hz, and 385 Hz, and another pipe has successive harmonics of 165 Hz, 220 Hz, and 275 Hz. (a) Which pipe is closed at one end and which is open at both ends

To determine athletes body fat, there are weighed first in air and then again while they are completely underwater. It is found that one athlete weighs 690 N when weighed in air and 42 N when weighed underwater. What is the average density

A truck is traveling north and a car is traveling west calculate momentum

What are 2 differences between elliptical and spiral galaxis

Which safety measures should you follow during a thunderstorm? Check all that apply. (A) Avoid touching anything that conducts electricity. (B) Avoid touching a person who has been struck by lightning. (C) Go outside.

1. An automobile with a mass of 1000 kg accelerates when the traffic light turns green. If the net force on the car is 4000 N, what is the car's acceleration?

Imagine that you replace the block in the video with a happy or sad ball identical to the one used as a pendulum, so that the sad ball strikes a sad ball and the happy ball strikes a happy ball.

Under what conditions will an object experience a gravitational force? Under what conditions will an object experience an electric force? Under what conditions will an object experience a magnetic force?

A basketball player pushes down with a force of 34 N on a basketball that is inflated to a gauge pressure of 9 x 104 Pa. What is the diameter of contact between the ball! and the floor?