An element's atomic number is 34. How many protons would an atom of this element have?

What is resonance? How is the velocity of sound in air determined by resonance tube method?

Resolution is best described as the A. ability to view something that is small B. ability to magnify a specimen C. ability to distinguish between two adjacent objects D. ability to distinguish a specimen from its background E.

A ball is thrown into the air and follows the parabolic path indicated by the dashed line. Use the arrows provided to indicate the approximate directions of the velocity and acceleration of the ball at each of the three locations.

A golfer hits a golf ball at an angle of 30 degrees from the ground, with an initial velocity of 120 ft/sec. It lands on the ground, after 5 seconds How far did the golf ball travel horizontally?

If the bar is initially vertical, determine the angle of tilt of the bar when the 20 kipkip load is applied. Express your answer to three significant figures and include appropriate units.

A 58.0 kg snow skier is on the top of 351 m high hill. After she has gone down a vertical distance of 142 m, what is her mechanical energy? Explain your answer (CER) !

A sphere has a mass of 2.10kg and travels along a horizontal plane at the velocity of 12.2m/s. Find the energy

What is the force required to accelerate a baseball with a mass of 0.145 kilograms and an acceleration of 35.00 meters/second squared?

A 4.00 kg stone is dropped from a height of 145 m. What is the stone's potential and kinetic energy respectively when it is 50.0 m from the ground?

If the speed of a vehicle was reduced from 65 miles per hour to 35 miles per hour, by approximately how many kilometers per hour was the speed reduced? (1 kilometer = 0.62 mile, rounded to the nearest 0.01 mile)