To test your fhe brother's claims about his car, you accept his offer of a ride about campus. not wanting to exceed the speed limit, he claims he can only give a taste of the accelerating ability of the car by accelerating for just a second or two. this is not long enough to get a good reading on the speed and the elapsed time. you notice, however, that the pine tree scented (and shaped) air freshener that hangs from his rear view mirror makes an angle of 24.6 degrees with the vertical while he is accelerating. what is the car's acceleration?

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?