Questions from College Physics

Q: In a certain right triangle, the two sides that are perpendicular

In a certain right triangle, the two sides that are perpendicular to each other are 5.00 m and 7.00 m long. What is the length of the third side of the triangle?

Q: In Problem 50, what is the tangent of the angle for

In Problem 50, what is the tangent of the angle for which 5.00 m is the opposite side? Data from Problem 50: In a certain right triangle, the two sides that are perpendicular to each other are 5.00 m...

Q: The three graphs in Figure 2.13 represent the position vs

The three graphs in Figure 2.13 represent the position vs. time for objects moving along the x - axis. Which, if any, of these graphs is not physically possible?

Q: A woman measures the angle of elevation of a mountaintop as 12

A woman measures the angle of elevation of a mountaintop as 12.0°. After walking 1.00 km closer to the mountain on level ground, she finds the angle to be 14.0°. Find the mountain’s height, neglecting...

Q: A surveyor measures the distance across a straight river by the following

A surveyor measures the distance across a straight river by the following method: starting directly across from a tree on the opposite bank, he walks x = 1.00 x 102 m along the riverbank to establish...

Q: Vector A( has a magnitude of 8.00 units and

Vector A( has a magnitude of 8.00 units and makes an angle of 45.0° with the positive x - axis. Vector B( also has a magnitude of 8.00 units and is directed along the negative x - axis. Using graphica...

Q: Vector A( has a magnitude of 29 units and points in

Vector A( has a magnitude of 29 units and points in the positive y - direction. When vector B( is added to A(, the resultant vector A( + B( points in the negative y - direction with a magnitude of 14...

Q: An airplane flies 2.00 x 102 km due west from

An airplane flies 2.00 x 102 km due west from city A to city B and then 3.00 x 102 km in the direction of 30.0° north of west from city B to city C. (a) In straight-line distance, how far is city C fr...

Q: Vector A( is 3.00 units in length and points

Vector A( is 3.00 units in length and points along the positive x - axis. Vector B( is 4.00 units in length and points along the negative y - axis. Use graphical methods to find the magnitude and dire...

Q: A force F(1 of magnitude 6.00 units acts

A force F(1 of magnitude 6.00 units acts on an object at the origin in a direction θ = 30.0° above the positive x - axis (Fig. P1.58). A second force F(2 of magnitude 5.00 unit...