A string vibrates at a frequency of 20hz what is its period

According to ohms law, what would happen to the current if resistance was increased

While skiing, Ellen encounters a ledge that sends her flying horizontally at a rate of 12 m/s. How far away will she land if the ledge is 7 meters high? ... ?

A yo-yo is swung around the head of a person in a horizontal circle. What provides the centripetal force on the yo-yo?

Find the moment of inertia of a hoop (a thin-walled, hollow ring) with mass M = 1kg and radius R = 1m about an axis perpendicular to the hoop's plane at an edge. (Express your answer in units of kg*m^2).

Cecil is working with samples of chlorine (Cl), oxygen (O), bromine (Br), and silver (Ag). The samples are all at room temperature. Which substance is most likely the most dense? chlorine

Why are glass fibers stronger than bulk glass?

1. A 2000kg truck at rest accelerates to 45m/s in 7 seconds. What is its change in kinetic energy?

The speed with which force is developed by skeletal muscles is determined by the

What aviation first is paul maccready credited with

Why is the use of an international system of measurement important for science?