What is the efficiency of her body when a cyclist expends 1000 w of power to deliver mechanical energy to the bicycle at the rate of 100w?

A 11,000-watt radio station transmits at 880 kHz. Determine the number of joules transmitted per second.

A ballistic pendulum shoots a ball of mass 1 kg at initial velocity 13 m/s. if the mass of the pendulum is 8 kg how high does the pendulum go in meters? round your answer to two decimal places

What would you predict about a chemical that has a hydrogen ion concentration of 1 * 10-12 M? It will form salt and water when added to a base. It contains no hydroxide ions. It has high concentration of hydroxide ions. It has a sour taste.

What is mitochondrion?

How much heat is needed to melt 45.00 g of ice at 0°c if the latent heat of fusion of water is 333.7 j/g?

Which of the following is the correct SI unit measuring amount of material contained in a solid sphere Kilograms Tons Ounces Pounds

Consider a particle with initial velocity v⃗ that has magnitude 12.0 m/s and is directed 60.0 degrees above the negative x axis. What is the x component v⃗ x of v⃗? What is the y component v⃗ y of v⃗?

Which is heavier, the earth or the moon

if the separation between two masses is doubled, does the gravitational force between them increase or decrease? By what factor?

A model rocket is fired vertically upward from rest. Its acceleration for the first three seconds is a (t) = 66 t, at which time the fuel is exhausted and it becomes a freely "falling" body.