Um carro viaja de uma cidade a a uma cidade b, distantes 200km. seu percurso demora 4 horas ,pois decorrida uma hora de viagem ,o pneu dianteiro esquerdo furou e precisou ser trocado, levando 1 hora e 20 minutos do tempo total gasto. qual foi a velocidade média que o carro desenvolveu durante a viagem

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

Determine the maximum r-value of the polar equation r =3+3 cos 0

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?