Category: Physics

Which is stronger TNT or C4? C4 is 18% more powerful than TNT. Ammonium nitrate in its pure form is a fairly weak explosive. When combined with fuel oil, however, it gains an explosive power nearly equal to TNT. How much Tannerite can you legally set off? For safety reasons, Tannerite Sports recommends using no […]

How do you calculate a pulley system? To calculate the mechanical advantage of a pulley you simply have to count the number of rope sections that support whatever object you are lifting (not counting the rope that is attached to the effort). For example, in a one pulley system the MA is 1. In a […]

What are the 5 different types of PFDS? Types of Personal Flotation Devices PFD TYPE BEST FOR TYPE II: NEAR-SHORE BUOYANT VEST Calm, inland waters where there is a good chance of rescue TYPE III: FLOTATION AID Calm, inland waters where there is a good chance of rescue TYPE IV: DEVICE All waters where help […]

Which equation should be used for a bomb calorimeter? Constant-Pressure Calorimetry In contrast, a bomb calorimeter ‘s volume is constant, so there is no pressure-volume work and the heat measured relates to the change in internal energy (ΔU=qV Δ U = q V ). Does a bomb calorimeter measure delta H directly? The combustible gas […]

Is ProPilot assist worth it? Is ProPilot Assist worth it? The short answer: Yes. While it’s a relatively simple system compared with some on high-end vehicles, it actually does take a lot of the tedium out of highway driving and stop-and-go commutes. A longer answer: It’s definitely worth adding if you already wanted a fully […]

What is the frequency of a wave? hertz What is the wave velocity if the wave length is 100 cm and the frequency is 2 Hz? Hence, the wave velocity is 2 m/s. Why does frequency not affect wave speed? The data convincingly show that wave frequency does not affect wave speed. An increase in […]

How should you treat a common injury immediately after it happens? Immediately after your injury Rest. Resting is one of the most effective ways to start your healing process. Ice. The benefits of applying ice are greatest within the first day or two after sustaining an injury. Compress. Elevate. How many days should you ice […]

Which air can hold more water vapor? The maximum amount of water vapor that can be in the air depends on the air temperature. Warmer air can hold more water vapor within it. That’s why the muggiest days usually happen at the height of summer heat. But as the temperature goes down, the air can […]

What are the similarities between nonmetals and metalloids? As compared to metals, they have low density and will melt at low temperatures. The shape of nonmetals cannot be changed easily because they are brittle and will break. Elements that have properties of both metals and nonmetals are called metalloids. They can be shiny or dull […]

Is a higher G value better? Generally, a higher g-value will be beneficial in cooler climates and a lower g-value in warmer climates. Typically g-values will range between 0.2 and 0.7, with solar control glazing having a g-value of less than 0.5. What is a good U value? The best insulating materials have a U-value […]