Drawing circuits. Complete with solution diagrams in bmp format.

Draw a flashlight bulb and show where the current usually enters and leaves. Draw a D-Cell and label its two terminals. Now draw a diagram showing how to connect the bulb and cell with two lengths of wire. How might you connect them with one wire? Show the path of the current in each case.

Mass of air in a room.

Find out the mass of the air in a room 3.00m by 4.00m by 5.00m given that the temperature is 200 C at atmospheric pressure (1atm = 101000 Pa) Given that, Universal gas constant R = 8.314 J/ mol K, Boltzmann’s constant kB = 1.38 x 10-23 J/K Mass to mole ratio of air = 0.029 kg/mol

Word problems dealing with the Moon and Earth.

A grandfather clock is placed on the moon. The "g" value on the moon is 1/6 that of earth. If you wanted to keep time on the moon and wanted the pendulum period to be 1 second; how long must the string on the grandfather clock pendulum have to be?

Calculating surface tension and surface energy.

A water drop of radius 10^-2 m is broken in to 1000 equal droplets. Calculate the gain in surface energy. Surface tension of water is 0.075 N/m.

Introduction Physics College Homework Problem Help

1.A boeing 747 jet with 385 people cruising 39000 ft travels 280 yds on gallon of fuel. How many gallons will it need to travel 2000 km. a. How many meters does 200 km equal? b. How many meters does the plane travel per gallon of fuel? How many gallons will the plane need to travel 2000 km? 2. Hwo may liters of water would fill a cube-shaped tank whose inner dimensions are 1.00 m on each side? 3.A pipeline is 2 hogsheds and a hogshead is 63 gallons or (2 barrels). Given that 1 US gallon is 231 in.^3 what is the SI equivalent of a pipe to 3 Sig.Fig's. 4. 5.0x10^5 yd^3 = how many cubic meters? 5. The earth rotates once around its spin axis in 23 h 56 min, and its e... click for more