O que você deve fazer para iniciar uma atividade física? Marque com X: A - ( ) Faça algo de que goste ; B - ( ) Crie objetivos a serem cumpridos; C – ( ) Fazer alguma atividade forçada; D - ( ) Jogar e Brincar aleatoriamente; E – ( ) Comece devagar:; F – ( ) Ficar parado;

This is what a calorimeter is used for simpler ex, to measure calories in food.

Phagocytes contain digestive enzymes to facilitate the process of phagocytosis

Friction force is equal to the net force of the car.             fn                           |ff< ·                       |                     fgfg and fn cancel out.55 km/h is 15.2778 m/s. this is the initial velocityfinal velocity is 0 m/sfind acceleration using kinematic equationv² = v₀² + 2adsince v = 00 = v₀² + 2ada = -v₀²/(2d)a = -(15.2778 m/s)/(2 * 38m) a = -3.2418 m/s²find net force and you find friction.f = ma f = (1165 .2418 m/s²)f = 3776.7 n = ffw = ff · dw = (3776.7 n)(38 m)w = -1.4 × 10^5 jthe friction forces do 1.4 × 10^5 j of work on the car

The answer would be choice b.     b)