A 25 kg chair at rest on a horizontal floor requires 165 N of horizontal force to set it in motion. Once the chair is in motion, a 127 N horizontal force keeps it moving at a constant velocity. b. Find the coefficient of kinetic friction between the chair and the floor.

Find x rounded to three decimal places. $\frac{5}{10^{2 x}}=7$

A child causes a wagon to accelerate by pulling it with a horizontal force. Newton’s third law says that the wagon exerts an equal and opposite force on the child. How can the wagon accelerate? (Hint: Draw a freebody diagram for each object.)

The forces acting on a sailboat are 390 N north and 180 N east. If the boat (including crew) has a mass of 270 kg, what are the magnitude and direction of the boat's acceleration?

If a small sports car collides head-on with a massive truck, which vehicle experiences the greater impact force? Which vehicle experiences the greater acceleration? Explain your answers.

The forces acting on a sailboat are 390 N north and 180 N east. If the boat (including crew) has a mass of 270 kg, what are the magnitude and direction of the boat’s acceleration?

Perform the indicated operations and simplify. $(3a+7b-9)-(5a+9b+21)$

If gold were sold by weight, would you rather buy it in Denver or in Death Valley? If it were sold by mass, at which of the two locations would you prefer to buy it? Why?

You have 60 megabytes (MB) of space left on your portable media player. You can choose to download song files that use 3.5 MB or video files that use 8 MB. You want to download at least 12 files.What is a graph showing the numbers of song and video files you can download?

Identify the action-reaction pairs in the following situations: a. A person takes a step. b. A snowball hits someone in the back. c. A baseball player catches a ball. d. A gust of wind strikes a window.

An enzyme is a protein that acts as a catalyst for increasing the rate of a chemical reaction that occurs in cells. In a certain reaction, an enzyme A is converted to another enzyme, B. Enzyme B acts as a catalyst for its own formation. Let p be the amount of enzyme B at time t and I be the total amount of both enzymes when t=0. Suppose the rate of formation of B is proportional to p(I-p). Without directly using calculus, find the value of p for which the rate of formation will be a maximum.

The sensor in the torso of a crash-test dummy records the magnitude and direction of the net force acting on the dummy. If the dummy is thrown forward with a force of 130.0 N while simultaneously being hit from the side with a force of 4500.0 N, what force will the sensor report?

Find the real solution(s) of the equation involving absolute value. Check your solution(s). |x+1|=2

The force exerted by the wind on the sails of a sailboat is 390 N north. The water exerts a force of 180 N east. If the boat (including its crew) has a mass of 270 kg, what are the magnitude and direction of its acceleration?