15. A 65 kg person is out riding their bike in a circle with a radius of 22.3 m. In order to stay on the road they need a centripetal forceof 186.5 N. A. What must be their acceleration? [2.87 m/sB. How fast must they be traveling? [8.0 m/s]C. What is their period? [17.5 s]D. How many laps will they make in 10 minutes? [34.25

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3