Danny sails a boat downstream. The wind pushes the boat along at 21 km/hr. The current runs downstream at 15 km/hr. What is the actual velocity of the boat?

6.0 km/hr, downstream

1.4 km/hr, downstream

310 km/hr, downstream

36 km/hr, downstream

Which of these themes is most closely related to the harlem renaissance

Which of these is a significant limitation of using wind power for energy? A. Wind is not capable of traveling long distances. B. Wind energy is mostly produced in rural areas while most of the energy needed is in urban areas. C.

Which direct measurement would provide evidence that the energy of a substance had changed? A. Temperature B. Heat C. Mass D. Volume

What type of hybridization is needed to explain why ethyne, C2H2, is linear?

Which elements are not likely to bond with other elements?

An 80 kg volleyball player lands from a jump and tries to stop her forward motion. The normal contact force exerted by the floor on her shoes is 2000 N. The friction force exerted by the floor on her shoes is 600 N acting backward on the player.

How does electronegativity affect the polarity of the bond between two atoms?

How much heat (energy) would need to be absorbed by 1.5 g of liquid water to cause a temperature change of 30.45 °C? The specific heat of water is 4.18 J/gºC.

What happens when electrons are passed from one atom to a more electronegative atom?

Calculate the k sp for zinc hydroxide if the solubility of zn (oh) 2 in pure water is 2.1 * 10-4 g/l. calculate the k sp for zinc hydroxide if the solubility of zn (oh) 2 in pure water is 2.1 * 10-4 g/l. 2.9 * 10-3 1.5 * 10-3 9.9 * 10-18 3.8 * 10-17