A dog sits 1.61 m from the center of a merry- go-round with an angular speed of 1.99 rad/s. If the magnitude of the force that maintains the dog’s circular motion is 39.5 N, what is the dog’s mass?

is this a psat question, if so do not cheat try your best.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.