Category: Physics

Why only Tungsten is used in bulb? Tungsten is used for making filament of an electric bulb due to the following reasons: Being an alloy it has a very high melting point. It has very high resistivity so it does not burn easily at room temperature. The lamp glows at high temperatures. What is the […]

What should manifold absolute pressure be at idle? The vacuum inside an engine’s intake manifold, by comparison, can range from zero up to 22 inches Hg or more depending on operating conditions. Vacuum at idle is always high and typically ranges from 16 to 20 inches Hg in most vehicles. What PSI should a MAP […]

What is the direction of the magnetic lines of force? Lines of force always form individual CLOSED LOOPS around the magnet. Lines of force have a definite DIRECTION from North to South. Lines of force that are close together indicate a STRONG magnetic field. Is a magnet made with iron nickel or cobalt? There is […]

What does the coefficient of static friction depend on? Already Coulomb presented experimental evidence that the static coefficient of friction may depend on time, on normal force, on the contact size, on the nature of contacting materials, and on the presence of intermediate lubricant layers. What is the static coefficient of friction? The coefficient of […]

What are the 4 steps of the IPDE process? The four steps of the IPDE process are: I—Identify—Locate potential hazards within the driving scene. P—Predict—Judge where the possible points of conflict may occur. D—Decide—Determine what action to take, when, and where to take it. E—Execute—Act by maneuvering the car to avoid conflicts. What are 3 […]

Which body part has most bones? The hands and feet contain over half of the body’s bones. Coming out on top are your hands and feet. Each hand has 27 bones, and each foot has 26, which means that together the body’s two hands and two feet have 106 bones. That is, the hands and […]

Where does friction act on a wheel? The friction force acts in the forward direction on the rear wheel and it acts in the backward direction on the front wheel. The magnitude of friction force on the rear wheel can be more, equal or less than that on the front wheel. How does friction affect […]

What is the Hydra in real life? It is suggestively based on the British Aerospace Harrier II (formerly known as the Hawker Siddley Harrier) a well-known British fighter jet with Vertical Takeoff and Landing (VTOL) capabilities, with minor detailing from the F-16 Fighting Falcon, such as the cockpit and air intake. Is the Hydra faster […]

Can you table a motion? In both houses of the United States Congress, the motion to table is used to kill a motion without debate or a vote on the merits of the resolution. The rules do not provide for taking the motion from the table, and therefore consideration of the motion may be resumed […]

Do rocks regenerate in Animal Crossing? Some nitty gritty background: Every island in Animal Crossing: New Horizons has six rocks that spawn in random locations around the map. Fully breaking a rock (by eating a piece of fruit before hitting it with a shovel) will cause the rock to respawn in a different random spot […]