The kinetic energy (in joules) of a moving object can be calculated from the expression 1mv where m is the mass of the object in kilograms and v is its speed in meters per second. find the kinetic energy of a 0.145-kg baseball that is thrown at a speed of 40 meters per second.

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

In the 30-60-90 triangle below side s has a length of and side r has a length

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters