Acommunity in texas broadcasts public service announcements on tornado safety right before spring. why is this the most effective time to do so?
a)
it is the time of year when the temperature contrast is greatest between colliding polar and tropical air masses over the central united states.
b)
it is the time of year when the temperature contrast is the least between colliding tropical air masses over the central united states.
c)
it is the time of year when the temperature contrast is the least between colliding polar and tropical air masses over the central united states.
d)
it is the time of year when the temperature contrast is greatest between colliding tropical air masses over the central united states.

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0

Being able to see a square in the middle of the image despite not having lines to form a square represents the gestalt principle of a. proximity b. similarity c. closure d. continuity