5 Explain why 25 kg of feathers float when immersed in later while 25.kg of Steel Sinks when immersed in water? (Ne* You must use the terms density, inversely proportional Volume and mass in your explanation​

Alightning strike consists of charge moving from a cloud to the ground . in one particular case, the electrons in a lightning strike are confined to travel within a radius of 1.5 m and to move at a speed of 5.0 x 10 m/s. if the density of electrons in the strike is 10'15 electrons/m what current is carried by the lightning ?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f