How many elements have scientists named?

Scientific knowledge changes when which of the following occurs? A. When knew evidence that challenges old ideas is presented. B. When scientist decide to change their theories and ideas in response to societal pressure. C.

suppose in an expirement to determine the relation between force and stretch of a spring one group found that

A graph of velocity versus time (velocity displayed in m/s and time in seconds) displays a constant slope of 2 and a y-intercept of 4. Explain what can be inferred from the given data.

How long does for one rotation of earth

What are some examples of pressure

What type of motion occurs when an object spins around an axis without altering its linear position?

What happens to the movement of particles in a liquid when it is heated?

During a demonstration of the gravitational force on falling objects to her class, Sarah drops an 11 lb. bowling ball from the top of the science building. Determine distance the ball has traveled after falling for 1.

A teacher wants to demonstrate that unheated water can boil at room temperature in a beaker within a bell jar connected to a vac-uum pump. However, the vacuum pump is faulty and can reduce pressures only to 15 kPa.

How many btus of heat energy are needed to raise the temperature of 99.6 lbs of water from 50 °f to 130 °f?