Se ejerce una fuerza de 200 N sobre un resorte cuya longitud es de 20 cm y se observa que la longitud del resorte alcanza un valor de 25 cm. determina: a) la constante elastica del resorte, b) el alargamientos si se aplica una fuerza de 300 N

As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s. calculate eddy’s power rating