For a given location air temperature changes from a moming low of 42°f to an afternoon high of 70°f. (a) express these temperatures in r, k, and °c. (b) determine the temperature change in ⓡf, "r, k, and °c from morning low to afternoon high (e) what conclusion do you draw about temperature change for °f and r scales? (d) what conclusion do you draw about temperature change for °c and k scales?

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?