You add 50mL of water at 10 degrees c to 50 mL of water at 80 degrees c. What is the most likely final temperature of the mixture?

When adding vectors in the x and y direction, what must you do to find the magnitude and direction of the resultant vector?

Iva is studying whether students gain weight during their first year of college. she collects weights from all the incoming freshmen in the fall, then collects weights from them again at the end of the spring term.

For much of the year this desert is hot dry and windy. What type of plant would you most expect to survive in this climate

A box is partially filled with sand. The length of the box is 8 mm. The width of the box is 17 mm. If the volume of the sand is decreasing at a rate of 562 cubic mm per minute, what is the rate, in mm per minute, at which the height of the sand is

A 0.90-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 4.0 N for a distance of 3.0 m. How much farther would the force have to act for the block to have 61 J of kinetic energy?

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

How does work get affected when a object is lifted up instead of using a ramp

Choose the correct statement. a. Usually, when one form of energy is converted to another, no energy is wasted. b. The total amount of energy in the universe is gradually decreasing. c. This statement illustrates the first law of thermodynamics. d.

A 10 cm3 block of paraffin (a type of wax) weighs 0. 085 N. It is carefully submerged in a container of gasoline. One cm3 of gasoline weighs 0.0069 N. a. What is the weight of the gasoline displaced by the paraffin? b.

What is a device made by joining two different materials to form a circuit that produces an electric current? a. convertor b. resistor c. semiconductor d. thermocouple