A tank is half full of oil that has a density of 900 kg/m3. Find the work w (in j) required to pump the oil out of the spout. (use 9. 8 m/s2 for g. Round your answer to the nearest whole number. ).

Of four agents alpha, beta, gamma anddelta, three have to be sent together on amission. if alpha and beta cannot gotogether, beta and gamma cannot go togetherand gamma and delta cannot go together, then which of the following holds? 1. any three agents can be sent.2. alpha, delta and any one out of beta andv gamma can be sent.3. beta, gamma and any one out of alphaand delta can be sent.4. the mission is impossible.

Which of the following is a presentation cue? a. crossing your arms b. mumbling c. repeating words d. whistling

What are spirit and opportunity designed to do?