Which element has the highest number of protons?

a. Calcium

b. Argon

c. Xenon

d. Radon

If a cold gives you a stuffed-up nose, it changes the way your voice sounds, even if your vocal cords are not affected. Explain why this is so.

A 100 W engine runs for 1 minute. How much work does it do? A. 1000 J B. 600 J C. 100 J D. 6000 J

Which of the following shows the prefixes in order from smallest to largest? A) micro milli centi B) centi milli micro C) deca deci milli D) mega milli micro

A water-balloon launcher with mass 2 kg fires a 0.75 kg balloon with a velocity of 14 m/s to the west. What is the recoil velocity of the launcher?

What elements are formed only during the supernova phase of large or extra-large madd star?

How does changing depth affect water pressure

The mass of a rigid rod is 0.60 kg and its length is 39.0 cm. Calculate the moment of inertia (in kg · m2) for the rod if it is pivoted about an axis through the center of mass of the rod. (Assume the axis is perpendicular to the rod.

Does a rolling basketball have kinetic energy

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).

What happens to particles when a substance gains energy and changes state?