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

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 27 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?

If the position of a particle is given by x = 30t – 3t3, where t is in seconds and x is in meters, when is the particle’s velocity zero?

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?

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.

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

You are having a weekend phone conversation with you aunt, and she knows you are taking an OTC class for consumers this semester. She admits that she would like to learn how to better read OTC product labels and is interested in knowing what part of the label lists the side effects.   In which of the following drug facts label sections do you tell her to look for the possible side effects of a medication?

Which of the following is not required to be on the label/labeling of a Food and Drug Administration approved over-the-counter (OTC) drug product?

Which amendment to the Food, Drug, and Cosmetic Act established OTCs as a separate class of drugs from legend (prescription) drugs?

The opinions of 1500 _____ people can provide a very accurate picture of the opinions of an entire nation.