What is the tangential velocity of a record player which makes 11 revolutions in 20 seconds?

Define the terms moral development and moral reasoning.

Ice at 0.0∘c has a density of 917 kg/m3. a 3.00 cm3 ice cube is gently released inside a small container filled with oil and is observed to be neutrally buoyant. what is the density of the oil?

In an exothermic chemical reaction the energy gained by the surroundings must be the energy lost by the reaction