6,5 gam Hydro ởnhiệt độ270C, nhận được nhiệt nên thểtích giản nởgấp đôi, trong điều kiện áp suất không đổi. Tính : a. Công mà khí sinh ra b.Độbiến thiên nội năng của khối khí c. Nhiệt lượng đã cung cấp cho khối khí.

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

Acar travels 40m in 8 seconds find the car speed