If a marble took 1.63 seconds to go the first 50cm's, and 1.89 seconds to go the second 50cm's, and then 2.69 seconds to go the whole 100cm's, what was the average velocity and acceleration for the marble? Extra info: The table was tilted 20 degrees upwards

Please answer an real answer and not a bunch of random words or letters, or I will report you. Thank you! <3

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?

Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false

What is the state of matter with a specific volume but no definite shape