Category: Physics

What are the two conditions that make deception ethical? Deception in psychological research is often stated as acceptable only when all of the following conditions are met: 1) no other nondeceptive method exists to study the phenomenon of interest; 2) the study makes significant contributions to scientific knowledge; 3) the deception is not expected to […]

What is it called when I add two forces together? The resultant force is a single force that has the same effect as two or more forces acting together. You can easily calculate the resultant force of two forces that act in a straight line. At what angle should the two forces 2p and? Therefore, […]

Where is kinetic energy the greatest on a hill? As you begin to descend, your potential energy decreases until it’s all gone at the bottom of the hill.” “At the bottom of the first hill, your kinetic energy is at its highest point. How is kinetic energy affected by his speed? It turns out that […]

Is there no noise in space? Unlike light, sound requires a medium to travel through. This simply means that in order to hear sound there has to be something for sound to travel through. In the vacuum of space, there are no (or very, very few) particles to vibrate, so sound cannot travel through this […]

What is the efficiency of the cycle? THe total thermal energy transferred out of the gas in one cycle is 1300J. Determine the efficiency of the cycle. The area within the cycle is equivalent to the work done by the gas, which is 610J. My first guess was just the ratio of the useful work […]

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Is powdered chocolate a solute? The solution of hot chocolate becomes one mixture rather than powder and water. The substance that is being dissolved in another substance is called the solute. In this example, the hot chocolate powder is the solute. Is chocolate powder dissolve in hot water easily? Explanation: Hot water has more energy […]

What is the formula for potassium iodide? KI What is the physical state of potassium iodide? Potassium Iodide Properties (Theoretical) Compound Formula IK Appearance White crystalline solid Melting Point 681 °C Boiling Point 1,330 °C Density 3.123 g/cm3 What is the charge for potassium iodide? +1 What is a substitute for potassium iodide? As an […]

What should manifold vacuum be at idle? Manifold vacuum is used to show engine compression and is created between the throttle plate and the intake valves. Normal manifold vacuum on an engine running at idle speed is around 18 to 20 inches. How much vacuum should a 350 have at idle? Idle vacuum for most […]

What is the relation between upthrust and density of fluid? density is one factor affecting upthrust (buoyant force). if the density of the substance is more than the density of the fluid, then the upthrust will be less and thus the substance sink. if the density of the substance is less than the density of […]