Use your calculator to evaluate a¯=−3.7meter/second−13.9meter/secon d21.4second−7.2second.

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

If a star is moving toward earth, it is