Problem: Write an article based on this summary: Rub an ice cube over the chewing gum. Scrape off the chewing gum with a spatula or plastic knife.

Answer: Put an ice cube in a ziplock bag and rub it over the gum. Or, if you prefer, hold it in your hands. Continue to rub the gum over the ice until it hardens. Apply only the necessary pressure because if you scrape too hard, you could damage the surface of the dryer. This is also the reason why a plastic knife is preferred over a metal knife; the metal knife will scrape the finish off.

Problem: Write an article based on this summary: Define the generic formula. Find the projected area A. Calculate wind pressure. Determine the drag coefficient for the object in question. Calculate the wind load. For example, let's say you want to determine the wind load on an antenna that is 3 feet long with a diameter of 0.5 inches in a gust of 70mph winds.

Answer: The generic formula for wind load is F = A x P x Cd where F is the force or wind load, A is the projected area of the object, P is the wind pressure, and Cd is the drag coefficient. This equation is useful for estimating the wind load on a specific object, but does not meet building code requirements for planning new construction. This is the area of the two-dimensional face that the wind is hitting. For a full analysis, you will repeat the calculation for each face of the building. For example, if a building has a west face with an area of 20m2, use that value for A to calculate the wind load on the west face. The formula to calculate area depends on the shape of the face. For a flat wall, use the formula Area = length x height. Approximate the area of a column face with Area = diameter x height. For SI calculations, measure A in square meters (m2). For imperial calculations, measure A in square feet (ft2). The simple formula for wind pressure P in imperial units (pounds per square foot) is P=0.00256V2{\displaystyle P=0.00256V^{2}}, where V is the speed of the wind in miles per hour (mph). To find the pressure in SI units (Newtons per square meter), instead use P=0.613V2{\displaystyle P=0.613V^{2}}, and measure V in meters per second. This formula is based on the American Society of Civil Engineers code. The 0.00256 coefficient is the result of a calculation based on typical values for air density and gravitational acceleration. Engineers use a more accurate formula to take into account factor such as the surrounding terrain and type of construction. You can look up one formula in ASCE code 7-05, or use the UBC formula below. If you're not sure what the wind speed is, look up the peak wind speed in your area using the Electronic Industries Association (EIA) standard. For example, most of the U.S. is in Zone A with 86.6 mph wind, but coastal areas might lie in Zone B (100 mph) or Zone C (111.8 mph). Drag is the force that air exerts on the building, affected by the building's shape, the roughness of its surface, and several other factors. Engineers typically measure drag directly using experiments, but for a rough estimate you can look up a typical drag coefficient for the shape you are measuring. For example: The standard drag coefficient for a long cylinder tube is 1.2 and for a short cylinder is 0.8. These apply to antenna tubes found on many buildings. The standard coefficient for a flat plate such as the face of a building is 2.0 for a long flat plate or 1.4 for a shorter flat plate. The drag coefficient has no units. Using the values determined above, you can now calculate wind load with the equation F = A x P x Cd. Start by estimating the projected area. In this case, A=dw=(3ft)(0.5in)(1ft/12in)=0.125ft2{\displaystyle A=dw=(3ft)(0.5in)(1ft/12in)=0.125ft^{2}} Calculate the wind pressure: P=0.00256V2=0.00256(702)=12.5psf{\displaystyle P=0.00256V^{2}=0.00256(70^{2})=12.5psf}. For a short cylinder the coefficient of drag is 0.8. Plugging into the equation: F=APCd=(0.125ft2)(12.5psf)(0.8)=1.25lbs.{\displaystyle F=APCd=(0.125ft^{2})(12.5psf)(0.8)=1.25lbs.} 1.25 lbs is the amount of wind load on the antenna.

Problem: Write an article based on this summary: Place some microfiber towels on your dashboard. Spray some glass cleaner on your scrub pad. Continue scrubbing on the driver's side.

Answer: This will prevent drips on the dash. You could use the same towels you used to buff and clean the exterior of the windshield in order to avoid going through your towels too quickly. Spray a few additional squirts of cleaner on half the windshield. Starting in the upper-right corner of the passenger's side, move the scrub pad down the windshield in parallel rows, working your way to the left (driver's) side. You'll have to stop after cleaning the first half of the windshield to apply glass cleaner to the driver's side. Remain in the passenger seat or lean into the car from the passenger's side door to avoid bumping or leaning on the steering wheel while cleaning. Just as you did on the passenger's side of the windshield, move the scrub pad from top to bottom until the entire surface of the interior windshield has been scrubbed clean. When you're finished, use a dry microfiber towel to go over the entire surface of the windshield to ensure you didn't leave any cleaning liquid. Move your hand around the entire surface of the windshield in a small, tight circle.

Problem: Write an article based on this summary: Practice dumbbell curls to work your upper arms. Work out your back and arms with dumbbell rows. Use a lat pull-down machine to strengthen your back.

Answer:
Keep your arms straight and your palms face-up by your hips. Hold a barbell or dumbbells and slowly bend your elbow to start your curl. Bring the weight up to your shoulders and hold it for a count. Lower the weight back down until your arms are straight again to complete your rep. Practice doing around 10 reps for 23 sets. Choose a weight you're comfortable with and doesn't cause a lot of strain. As lifting that weight gets easier, you can use something heavier. Avoid swinging the weights up or down since you won't work your biceps properly and you could injure yourself. As soon as you can finish your sets using 25lb (11kg) weights, attempt doing a pull-up. Stand in front of a workout bench with your feet shoulder-width apart and your knees slightly bent. Bend at the knees so you're leaning over the bench and support your weight with one of your arms. Hold a dumbbell in your other hand and let your arm hang straight down. Slowly lift the weight up to your chest. Hold it there for a count before lowering it back to the starting position. Try doing about 3 sets that are 812 reps each. Dumbbell rows help work out your back muscles and shoulders. Once you can comfortably row with 25lb (11kg) dumbbells, start trying to do pull-ups. Keep the rest of your body still while doing dumbbell rows, or you may work the wrong muscles. Lat pull-down machines simulate the motion you'll use during a pull-up but you can choose the weight you're lifting. Slide the pin into a comfortable weight and reach up to grab the bar. Pull the bar on the machine down so it's below your chin and hold it for 1 count. Raise the bar back up slowly to the starting position. Try doing 812 lat pull-downs per set for 12 sets.Increase the weight as you get more comfortable on the machine. Try to work all the way up to your bodyweight so you're prepared to do your first pull-up.