A bullet of mass 15 g moves horizontally at velocity of 250 m s^ -1 . It strikes a mass wooden block of mass 400 g placed at rest on a floor. After striking the block, the bullet is embedded in the block. The block then moves through 15 m and stops. Calculate the coefficient of kinetic friction between the block and the floor.

How do hydroponic plants differ from nonhydroponic plants? a.) hydroponic plants can grow in a dryer soil. nonhydroponic plants grow in moist soil. b.) hydroponic plants grow on other plants and are known as air plants. nonhydroponic plants do not grow on other plants. c.) hydroponic plants can only grow in rain forests. nonhydroponic plants cannot grow in rain forests. d.) hydroponic plants are grown without soil. nonhydroponic plants are grown in soil.

Act has a 1200: 5 or 240: 1 turns ratio. it is short circuited. what is the maximum current at 1200a primary if we put a 100ohm resistor across the secondary end of the ct. use it as current source circuit.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx