Un libro del peso di 12 N è in equilibrio su un tavolo. Sapendo che il coefficiente di attrito statico vale 0,5, la forza di attrito quanto vale?

A girl runs up the down escalator in the mall. If the escalator is moving with a velocity of 24 m/min and the girl is running with a velocity of 30 m/min, how far up the escalator can she go in 4 minutes? A. 10 m B. 30 m C. 48 m D. 24 m

Thyroxine is also known as T4. The number 4 represents four atoms of

Which of the following statements are true about partial melting? Choose one or more: A. Mafic components of the parent rock tend to go into the liquid state first during partial melting. B.

In Physics lab, Ellen has been given the task of constructing a simple motor. She must find common household items at home and bring them to class the following day.

The force of replusion between two like charged particles will increase if

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are

How much force would be needed to move a car with the mass of 100kg to an acceleration of 5m/s/s?

A pendulum bob is made from a sphere filled with water. What would happen to the frequency of vibration of this pendulum if the sphere had a hole in it that allowed the water to leak out slowly?

Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball above the gym floor when its total mechanical energy is 41.70 J? Round to the nearest number.

Which of the following is the best description of a graph? A. Equations that can be plotted B. A representation of an equation C. Independent and dependent variables D. x and y lines