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In the figure, a crate of mass m = 30 kg is pushed at a constant speed up a frictionless ramp (θ = 40°) by a horizontal force F. The positive direction of an x axis is up the ramp, and the positive direction of a y axis is perpendicular to the ramp. The magnitude of F is.

In the figure, a stone is projected at a cliff of height h with an initial speed of 39.0 m/s directed at an angle θ0 = 61.0 ° above the horizontal. The stone strikes at A, 5.18 s after launching. The height h of the cliff is

In the figure below, elevator cabs A and B are connected by a short cable and can be pulled upward or lowered by the cable above cab A. Cab A has mass 1680 kg; cab B has mass 1500 kg. A 30 kg box of catnip lies on the floor of cab A. The tension in the cable connecting the cabs is 1.90 ×104 N. What is the magnitude of the normal force on the box from the floor?

An electric vehicle starts from rest and accelerates at a rate of 1.5 m/s2 in a straight line until it reaches a speed of 18 m/s. The vehicle then slows at a constant rate of 3 m/s2 until it stops.  How far does the vehicle move from start to stop?

Suppose A = BC, where A has the dimensions L/T and C has the dimensions T/M. Then B has the dimension:

The SI base units have the dimensions of:

An elevator cab that weighs 2400 N moves upward. The tension in the cable if the cab’s speed is  increasing at a rate of 2.4 m/s2 is 

A new college friend you’ve met since the semester started has many allergies and intolerances to foods and other substances. They have asked you to share some of what you learn in the OTC class to help them manage their life better.   Which of the following could you share with your new friend regarding what is not required to be listed in the inactive ingredients section on the drug facts label?

You have learned a lot about safe OTC use already in class this semester, and you have read the twelve tips for using medicine safely in the required reading, “Medicines in My Home”. You plan to talk with a grandparent over the phone soon to share what you have learned.  Which of the following statements is not a tip from that brochure that you should share with your grandparent?

Which of the following has the greatest chance of causing stomach irritation, and potentially causing bleeding?