A child drops a ball from a bridge. The ball strikes the water under the bridge 2.0 seconds later. What is the velocity of the ball when it strikes the water?

The nuclear mass of 48ti is 47.9359 amu. calculate the binding energy per nucleon for 48ti.

The actual mechanical advantage of a pulley is 2. The pulley has 3 supporting strings. What is the efficiency of the pulley? 50% 66% 100% 150%

If an astronomical light source were moving toward us, then what would be observed? (a) a blue shift (b) a shift toward longer wavelengths (c) a shift toward lower frequencies (d) a sonic boom

Science is orderly knowledge proven by

Which requires more work, lifting a 10-kg load a vertical distance of 2 m or lifting a 5-kg load a vertical distance of 4 m?

An alloy that contains mainly copper and tin is

Select the correct answer Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk.

An electron moves with velocity v⃗ = (5.9i-6.4j) * 104m/s in a magnetic field B⃗ = (-0.63i+0.65j) T. Determine the z-component of the force on the electron. Fz=?

3. According to the National Automobile Dealers Association, a single dealership may employ people with as many as 57 different A. salaries. B. specialists. C. job titles. D. technicians.

A paragraph that can serve the specific purpose of creating a special effect within the essay is called? a. paragraph block b. functional paragraph c. unified passage d. topical paragraph