From Questions to Solutions

Please show all work. 1. Calculate the wavelength of each frequency. a. 100.2 MHz b. 1070 kHz 2. Calculate the energy of a photon at each of the frequencies listed

Al(OH)₃ + 3 HCl → AlCl₃ + 3 H₂O How many moles of water are produced by the reaction of 39.3 g of Al(OH)₃? A) 1.00 mol B) 2.00 mol

A boat travels at 22 km/hr for 10 hours. What distance will it travel? A. 220 miles B. 2.2 miles C. 220 km D. 22 km

A yard is equal in length to three feet. The function [tex]f(x)[/tex] takes a measurement in yards (as input) and returns a measurement in feet (as output). What number will

Rose has preferred stock selling for 97.8 percent of par that pays a 10.2 percent annual coupon. What is Rose's component cost of preferred stock?​

A 9-V battery is hooked up to a 330-Ω resistor. What current is flowing through this circuit? A. 0.027 A B. 2970 A C. 36.6 A D. 6 A

If 22.3 mL of 2.60 M acetic acid reacts with 39.4 mL of 0.900 M radium hydroxide, which of the following best describes the resulting solution? A. Limited B. Basic

A coil has an inductance of [tex]$\frac{2.2}{\pi}$[/tex] H and is joined in series with a resistance of 220 ohms. When an alternating e.m.f. of 220 V at 50 c.p.s. is

47. A 15 hp motor has a total loss of 1, 130 W when operating at full-load. What is the percent efficiency?A. 89.5*B. 96.5C. 97.8D. 88.5η = \frac{P_{out}}{P_{out} + P_{loss}}

A 220 V A.C. supply is connected between points A and B. What will be the potential difference \( V \) across the capacitor? Assume an ideal diode. A. 0

Larry has a budget of [tex]\$220[/tex] to rent a party space. The function [tex]F(h) = 20h + 100[/tex] models the cost of renting the space for [tex]h[/tex] hours. Which inequality

The combined weight of 5 student backpacks is 36.9 pounds. What is the approximate weight of 1 backpack?

At Mr. Greene's electronics store, tablet computers are listed for [tex]\$212.99[/tex]. Which is the best estimate of the cost of 6 of these computers? F. \$1, 400 G. \$220 H.

The freezing temperatures for water on the Celsius and Fahrenheit scales are 0ºC and 32ºF, respectively. The boiling temperatures for water are 100ºC and 212ºF. Let C denote the temperature

At what Celsius temperature does 0.750 mol of an ideal gas occupy a volume of 35.9 L at 114 kPa?