Gắn cố định hai điện tích điểm q1 =q2 =5.10-7 CtạihaiđiểmAvàB trong không khí. Độ lớn của vectơ cường độ điện trường tổng hợp tại trung điểm của đoạn thẳng AB = 10cm là bao nhiêu?

The necleus of an atom is made up of what subatomic particles?

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .