Q.) during a summer day on the beach, the sand on the beach and the air temperature feel hot, but the ocean water feels cold. at night, why would the ocean water be warmer than the air?
group of answer choices

a.) air changes temperature faster than water, so the water is warmer and the air is much cooler than it was during the day.

b.) air stays warmer longer than water so your body is warm when you jump into the water.

c.) the heat from the air transfers to the water during the night, making the water warmer than it was during the day.

d.) as a cool breeze blows off the water onto the land, the water warms up.

science

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

The inside surface of a cylindrical-shaped cave of inner diameter 1.0 m is continuously covered with a very thin layer of water. the cave is very long and it is open on both ends. the water on the cave surface is at a constant temperature of 15.5 °c. the cave is constantly exposed to wind such that 15.5 °c air flows through the cave at 4.5 m/s. the kinematic viscosity of the air is 14.66 x 10-6 m2/s and the molecular diffusion coefficient of water vapor in the air is 0.239 x 10-4 m2/s. because the cave diameter is so large, the flow of wind down the length of the cave, in the x direction, can be treated like it is external flow and the cave surface can be approximated as flat where appropriate. calculate the x value, in a) the transition to turbulent flow occurs at rex meters, where the air flow transitions from laminar to turbulent along the inside surface of the cave b) calculate the x value, in meters, where the bulk steady state concentration of water vapor in the air flowing in the cave is 10% of the saturation concentration. assume the air at the surface of the water layer is 100% saturated with water vapor. assume the wind entering the cave contained no moisture before it entered the cave. take into account the transition from laminar to turbulent flow when solving part b

Should we celebrate the voyages of zheng he mini q answer key