You can make a smoothie in a blender with a power of 400 w and an efficiency of 85% how much energy is actually being used to make the smoothie in 30 seconds?

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

The ozone hole appears in antarctica during

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.