A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?

The weight (W) of an object is the product of its mass (m) in kilograms and g, the acceleration due to gravity in meters/second2. If the acceleration due to gravity is 9.8 meters/second2, find the corresponding weights for these masses. mass in kilograms = {22.1, 33.5, 41.3, 59.2, 78}

Enter the expression asin(x)+15, where asin(x) is the inverse sine function.

Write a neutralization reaction for each acid and base pair.

(a) $\mathrm{HI}(a q)$ and $\mathrm{NaOH}(a q)$

(b) $\operatorname{HBr}(a q)$ and $\mathrm{KOH}(a q)$

(c) $\mathrm{HNO}_3(a q)$ and $\mathrm{Ba}(\mathrm{OH})_2(a q)$

(d) $\mathrm{HClO}_4(a q)$ and $\mathrm{Sr}(\mathrm{OH})_2(a q)$

A piece of cardboard measures 10 in. by 15 in. Two equal squares are removed from the corners of a 10-in. side. Two equal rectangles are removed from the other corners so that the tabs can be folded to form a rectangular box with lid. a. Write a formula V(x) for the volume of the box. b. Find the domain of V for the problem situation and graph V over this domain. c. Use a graphical method to ind the maximum volume and the value of x that gives it. d. Confirm your result in part (c) analytically.

Is the mass of an object the same thing as its weight? Explain.

A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?

A hiker walks 3.00 km north and then 4.00 km west, all in one hour and forty minutes. Calculate his average speed in km/h.

A hiker starts at his campsite and walks at 2 m/s northward for 30 min, then turns and walks due west at 1 m/s for 1 h. (a) Calculate the distance the hiker walks in 1.5 h. (b) Calculate the hiker's displacement from the campsite after walking for 1.5 h. (c) Explain the difference between distance and displacement.

A person in a hurry averages $62 \mathrm{MPH}$ on a trip covering a distance of 300 miles. What time was required to travel that distance?

Suppose a sample of antibiotic pills has a mass of $15.6 \mathrm{~g}$. If the average mass per pill is $0.65 \mathrm{~g}$, determine how many pills are in the sample.

For each term or name, write a sentence explaining its significance. •Philip II •Macedonia •Alexander the Great •Darius III

In an old-fashioned camera, the film becomes exposed when light striking it initiates a complex chemical reaction. A particular type of film does not become exposed if struck by light of wavelength longer than 670 nm. Determine the minimum energy in electron volts needed to initiate the chemical reaction.

Four friends want to go out to dinner. They each want to go to a different restaurant. Which methods are fair for choosing which restaurant to go to? Write each restaurant name on its own slip of paper and draw a slip of paper at random. _____