Why does the gravitational force have any effect on massless particles of light? I thought gravity only effected things with mass. So how can gravitational lensing happen?
is this for the body systems? Playing a video game Muscular System, Nervous System, Skeletal System. Getting energy to sit through class by eating cereal and a banana Muscular System, Skeletal System, Digestive System, Nervous System Too much Examples. Since you can access the net, go and click the Source and see for your self. You just have to check which body part is involved in doing the activities. i usually include Nervous System since it controls our whole body. Ask your mom if you can't find out what body parts is involve. It's a bit tricky but it's too easy so you better study.. Check
You don't. School is for learning, not for MySpacing.
