Ultimate Physics Study Guide - Questions & Answers

A car is traveling at an average speed of 70 m/s. How many km would the car travel in 6.5 hrs. ?
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How does the electric potential energy between two negatively chargedparticles change if one particle's charge is reduced by a factor of 3?
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2) A man squeezes a pin between his thumb and finger, as shown in Fig. 6.1.fingerpinheadpinthumbFig. 6.1The finger exerts a force of 84 N on the pinhead.The pinhead has an area of 6.0 x 10-5 m2.(i) Calculate the pressure exerted by the finger on the pinhead.P42pressure =
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What is the equivalent resistance of the circuit?
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what property of light is suggested by the formation of shadows
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A bar of gold has a temperature of 22C, and a bar of aluminum has atemperature of 27C. Which statement explains why the bar of aluminum haa higher temperature?A. The particles that make up the aluminum bar are moving moreslowly.B. The particles that make up the aluminum bar are moving faster.C. The aluminum bar has a lower density than that of the gold bar.O D. The aluminum bar has less thermal energy.
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In a standard gas grill propane tank, there is approximately 4,579 mL of propane (C3H8). At a temperature of 55C, the tank has a pressure of 1,798 kPa. The tank is cooled to 25C and the pressure reduced to 1,025 kPa. What will the new volume be?
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While looking at an article about energy resources, you notice a bulleted listwith the title "Pros and Cons." This tells you that the article will present bothsides of the issue. Which active reading strategy are you using?A. Using text features and visual cuesB. Making mental imagesC. Monitoring and applying fix-up strategiesD. Summarizing
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how is the friction force produced
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An oil drop of mass 3.25X10^-15 kg falls vertically with uniform velocity, through the air between vertical parallel plates which are 2 cm apart. When a p.d. of 1000V is applied to the plates ,the drop moves to the positively charged plate, being inclined at 45 degree to the vertical . Calculate the charge on the drop.
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three importance of SI system
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Q3. What is the symbol for a :-(a) millimeter(b) micrometer(c) centimeter(d) kilometer(e) metre(f) nanometer
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A scientist is reserching the solar system how can the scientist best add to existing empirical evidence about the solar system?
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simplify the equation 52-117+413
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A bridge spanning a river is 98.0 meters above the water.How long would it take a rock dropped from the bridge to hit the water?
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A cotton garment cannot keep us warm in winter as a woolen sweater can. Give reason.
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what kind of energy bombarded the seeds were included on the outside of the ISS?
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Velocity and TimeUsing the graph above, what is the approximate velocity of the object at 5 seconds? *During what time interval is the object slowing down? Explain how you can tell.At what time or times was the velocity of the object about 4 m/s?Describe the motion of the object being described in above graph.
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Explain how force (F=ma), momentum (p=mv), energy, and gravity play a part in a launching sequence.
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When the driver in the car moving with a speed of 15 ms-1 increases thespeed at a constant rate of 5 ms-2 . Calculate the speed attained by thecar, at the end of 5 s.
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a sloth moves 3m to the right and then climbs 4m up a tree
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what is the mechanism of hydraulic machine
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Einstein's theory of general relativity is currently the best explanation ofgravity. Why has this theory not been replaced with a new one?O A. Scientists assume it is correct and therefore no longer performexperiments on gravity.O B. Because of Einstein's fame, it remains popular among scientists.O C. The force of gravity has been shown to remain constant over time,O D. It still explains the experimental evidence pertaining to gravity.SUBMIT
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9. A cube has a mass of 40g, a volume of 8cm' and a length of 2. Whatis the density?
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