Tam giác ABC vuông tại A được đặt trong điện trường đều E, α= ABC=60°.AB cùng hướng với E . Biết BC=6cm, hiệu điện thế giữa BC = 120V. a) Tìm hiệu điện thế giữa AC và BA và cường độ điện trường E

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?

In which of the following is positive work done by a person on a suitcase