Which idea would most likely be dangerous for a student to think while entering a lab? “I can figure out how to use the tools as I go along.”
“I need to stay calm even if an accident happens.”
“I should think like a scientist during the lab.”
“I will ask for help without worrying about my grade.”

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.