Une barre de fer rigide de 1,80m supporte à son extrémité Aune charge
pesant 245N et à son extrémité B
une charge pesant 343N. Quelle
force faut-il exercer pour soulever la
barre et en quel point faut-il la saisir
pour qu'elle reste horizontale?

Sarah and michelle work at a tech company that designs exercise apps. sarah tells michelle she has heard that james, their supervisor, interviewed with a competitor and may be leaving the company, which would open up a management position. what kind of power is sarah exerting?

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.