Arectangular loop consists of 80 turns, each carrying a current 8 a. the uniform magnetic field of 40 mtis directed to the right along x-axis. the loop can turn about y-axis. ifθ=30°, a = 0.4 m, b = 0.3 m, andi = 8a, what is the magnitude of the torque exerted on the loop?

What mass will a pumpkin have a force of 450 newton’s accelerates it to 110 m/s^2? include the correct units.

Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m