The rate of heat transfer to the surroundings from a

Elementary Statistics 12
Ohio Pick 4 In Ohio's Pick 4 game, you pay $1 to select a sequence of four digits, such as 7709 . If you buy only one ticket and win, your prize is $5000 and your net gain is $4999. a. If you buy one ticket, what is the probability of winning? b. Construct a table describing the probability distribut

Introductory Chemistry 5
Evaporating sweat cools the body because evaporation is endothermic and absorbs 2.44 kJ per gram of water evaporated. Estimate the mass of water that must evaporate from the skin to cool a body by \(0.50\ ^{\circ}\mathrm{C}\), if the mass of the body is 95 kg and its heat capacity is \(4.0\mathrm{\ J

Physics: Principles with Applications 7
The springs of a 1700-kg car compress 5.0 mm when its 66-kg driver gets into the drivers seat. If the car goes over a bump, what will be the frequency of oscillations? Ignore damping.

Chemistry: Atoms First 1
Problem 74AP A cylindrical glass tube 12.7 cm in length is filled with mercury (density = 13.6 g/mL). The mass of mercury needed to fill the tube is 105.5 g. Calculate the inner diameter of the tube (volume of a cylinder of radius r and length h is

Fundamentals of Statistics 4
Problem 26AYU Problem Eating Salad According to a survey conducted by the Association for Dressings and Sauces (this is an actual association!), 85% of American adults eat salad at least once a week. A nutritionist suspects that the percentage is higher than this. She conducts a survey of 200 Ameri

Physics for Scientists & Engineers with Modern Physics 4
A merry-go-round has a mass of 1640 kg and a radius of 7.50 m. How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder.

Brief Applied Calculus
First make a substitution and then use integration by parts to evaluate the integral. \(\int t^{3} e^{-t^{2}} d t\)

Chemistry for today : general, organic, and biochemistry 9
Why is it necessary that protein molecules be enormous?