Which of these stars has the hottest core? (a) a white main-sequence star (b) an orange main-sequence star (c) a red main-sequence star

A spring-loaded toy gun is used to launch a 12.0-g plastic ball. The spring which has a spring constant of 15.0 N/m is compressed 8.00 cm as the ball is pushed into the barrell.

In 12 s, a wire delivers 96 c of charge. the current in the wire, to the nearest whole number, is

A bungee cord with a spring constant of 800 stretches 6 meters at its greatest displacement. How much elastic potential energy does the bungee cord have?

Find the equilibrium concentrations of A, B, and C for a=1, b=1, and c=2. Assume that the initial concentrations of A and B are each 1.0 M and that no product is present at the beginning of the reaction.

A lava flow is an example of what igneous rock

A man inside an insulated metallic cage does not receive shock when the cage is highly charge. explain.

When a 3.50-g sample of liquid octane (c8h18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by 27.3 ∘c. the heat capacity of the calorimeter, measured in a separate experiment, is 6.22 kj/∘c?

Air has pressure because a. the stratosphere is thick b. air has mass c. wind moves the air d. temperature warms the air

What types of exercises for stomach

Which states the law of conservation of energy? A. Energy cannot be created or destroyed, but it can be converted or changed into different forms. B. Energy can be created or destroyed, and it can be converted or changed into different forms. C.