From Questions to Solutions

A 39.4 kg rock is on the edge of a 198.1 m cliff. The acceleration of gravity is 9.8 m/s². What potential energy does the rock possess relative to the

220 degrees F The indicator must be able to register temps below 32F to accommodate incoming frozen food shipments and above 212F to accommodate hot holdings

A chair is pulled by two horizontal forces. The first force is 122 N at an angle of [tex]$43.6^{\circ}$[/tex], and the second is 97.6 N at an angle of [tex]$49.9^{\circ}$[/tex].

When the temperature is 0 degrees Celsius, the Fahrenheit temperature is 32 degrees. When the Celsius temperature is 100 degrees, the corresponding Fahrenheit temperature is 212 degrees. Express the Fahrenheit

Round 97.081 to the nearest tenth. A. 97 B. 97.1 C. 97.8 D. 97.08

Lamps, one rated 100 W; 220 V, and the other 60 W; 220 V, are connected in parallel to an electric mains supply. Find the current drawn by the two

Determine the molality of a solution prepared by dissolving 4.77 g of cyclohexane ([tex]C_6H_{12}[/tex], 84.2 g/mol) in 97.6 g of benzene ([tex]C_6H_6[/tex], 78.1 g/mol). A) 0.5 mol/kg B) 1.0 mol/kg

Given the function [tex]f(x) = -3x^2 + 5x - 2[/tex], what is the value of [tex]f(4)[/tex]? A. -38 B. -18 C. 22 D. 46

What is the pressure in bar of a 4.50 L tank with 2.00 moles of oxygen at 39.3 °C? Given: - R = 0.08314 L·bar/mol·K

An object's speed increases from 10.5 km/h to 99.8 km/h in 2.41 seconds. Calculate the acceleration in \(\text{m/s}^2\) and express your answer to 3 significant figures.

Convert 97.7 °F to °C.

How many moles of water are produced by the complete combustion of 24.4 g of [tex]C_5H_{12}[/tex]? Given reaction: [tex]C_5H_{12} + 8 O_2 \rightarrow 5 CO_2 + 6 H_2O[/tex] A. 0.200

A 1.85-mole sample of H₂O₂ weighs A. 33.3 amu B. 35.9 g C. 62.9 g D. 1.85 g E. 33.3 g

A 28.4 g sample of an unknown metal is heated to 39.4 °C and then placed in a calorimeter containing 50.0 g of water. The temperature of the water increases

The upper and lower limits for diving ring diameters made by John's Swimming Co. are 40 cm and 39 cm, respectively. John took 11 samples with the following average diameters: