Questions from Modern Physics

Q: Each of the values of h and R has some measurement error

Each of the values of h and R has some measurement error: The muzzle speed is not precisely the same each time, and the barrel isn’t precisely horizontal. So you use all of the measurements to get the...

Q: Does the speedometer of a car measure speed or velocity? Explain

Does the speedometer of a car measure speed or velocity? Explain.

Q: What is your height in centimeters? What is your weight in

What is your height in centimeters? What is your weight in newtons?

Q: A book slides off a horizontal tabletop. As it leaves the

A book slides off a horizontal tabletop. As it leaves the table’s edge, the book has a horizontal velocity of magnitude v0. The book strikes the floor in time t. If the initial velocity of the book is...

Q: Suppose you are asked to compute the tangent of 5.00

Suppose you are asked to compute the tangent of 5.00 meters. Is this possible? Why or why not?

Q: A projectile moves in a parabolic path without air resistance. Is

A projectile moves in a parabolic path without air resistance. Is there any point at which

Q: Under what conditions is average velocity equal to instantaneous velocity?

Under what conditions is average velocity equal to instantaneous velocity?

Q: What physical phenomena (other than a pendulum or cesium clock)

What physical phenomena (other than a pendulum or cesium clock) could you use to define a time standard?

Q: Describe how you could measure the thickness of a sheet of paper

Describe how you could measure the thickness of a sheet of paper with an ordinary ruler.

Q: The quantity p = 3.14159c is a number with no

The quantity p = 3.14159c is a number with no dimensions, since it is a ratio of two lengths. Describe two or three other geometrical or physical quantities that are dimensionless.