Num determinado equipamento industrial, um líquido de calor específico 0,50 cal/g.°C, entra a 20 °C e sai a 80 °C. Se a vazão desse líquido no equipamento é de 50 kg/min, a potência térmica é, em kcal/min, de:

What date on the cosmic calendar did the milky way galaxy appear?

A ramp, a doorstop, and a car jack are made with at least one of which of the following simple machines? A. wheel and axle B. inclined plane C. lever D. pulley

Fleas often live on dogs or cats and bite them for meal of blood. This can be harmful to the cat or dog that is bitten. What type of symbiotic relationship is that?

A rifle bullet travels 5000 feet in 4 seconds. What is the speed of the bullet?

Which formation is one feature of karst topography?

The force on a current-carrying wire is a maximum when the current is moving parallel to a magnetic field. true or false

In 1999, what percentage of 36-month-old toddlers had been toilet trained? 20 percent 40 percent 60 percent 80 percent

Tarzan, in one tree, sights jane in another tree. he grabs the end of a vine with length 20 m that makes an angle of 45â with the vertical, steps off his tree limb, and swings down and then up to jane’s open arms.

Applying the Law of Conservation of Momentum Train car A is at rest when it is hit by train car B. The two cars, which have the same mass, are stuck together and move off after the collision.

Each of the objects above is composed of identical thin sticks of uniformly distributed mass 5.51 kg and length 0.737 m.