Will kilogram of hydrogen consists more atoms than kilogram of lead? explain

Does the average speed depend on direction

A force does + 190 j of work when it acts on a moving object and its direction is in the same direction as the object's displacement.

During an experiment, a toy car accelerates forward for a total time of 5 s. Which of the following procedures could a student use to determine the average net force exerted on the car during the 5 s that the car accelerates?

Which of the following describes a training program that involves a variety of activities? A. progressive training B. cross-training C. overtraining D. multitraining

3500kg of water are poured into a water tank and fill a volume equal to 3.5m^3. a. What is the density of the water? b. If the height of the water is 150 cm what is the gauge and total pressures at the bottom of the tank? c.

Showing how a projectile motion is parabolic

In deep space, there is very little friction. Once they launch a probe into deep space, where there are no external forces acting on it, scientists shut the probe's engines off because the scientists want the probe to

What is the atmosphere and why is it important?

A loud sound is produced in the downtown section of a city. Which of the following is least likely to occur with sound wave.

A crying baby emits sound with an intensity of 8.0 * 10-8 w/m2. calculate a reasonable estimate for the intensity level from a set of quintuplets (five babies), all crying simultaneously at the same place? the lowest detectable intensity is 1.