Physics

If a body carries a charge of +3 C, then which of the following is true? ) It has an excess of 4.8 x 10^19 electrons b) It has an excess of 1.87 x 10^19 electrons *1019 C) It is deficit of 1.87 x 10^19 electrons d) It is deficit of 4.8 x 10^19 electrons
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A wave traveling at 200 m/sec has a wavelength of 2.5 meters. What is the frequency of this wave
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how fossils influence and change our understanding of the history of Earth and it's species.
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PlZ HELP ME!!! THIS IS TIMED!!!! HELP
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The constant movement of rising warm air and sinking cool air in Earth's atmosphere is called atmospheric convection. What does atmospheric convection produce?
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The equivalent resistance in a series circuit is found by ____the resistances of all the resistors.A. multiplyingB. comparingC. adding the reciprocals ofD. adding
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How much must you raise thetemperature of 1.00 m^3 of waterso that its volume expands by0.00100 m^3?WaterB = 207-10-6 0-1(Unit = C)
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A 6000 kg roller coaster goes around a loop of radius 30 m at 6 m/s. What is the centripetal acceleration?
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A mass of slug, when attached to a spring, stretches it feet and then comes to rest in the equilibrium position. Starting at , an external force equal to is applied to the system. Find the equation of motion if the surrounding medium offers a damping force that is numerically equal to times the instantaneous velocity.
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Which property helps to explain differences in the specific heat capacities oftwo substances?A. The temperature at which each boilsB. DensityC. Latent heat of fusionD. Forces between molecules
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Which of the following is the best example of motion?A. Waving your armsB. Tossing and turning in your bedC. Walking from home to schoolD. Your dog wagging his tail
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An object is located 20.0 cm from a convex lens. The lens focuses light at adistance of 10.0 cm. What is the image distance?A. 6.67 cmB. -6.67 cmC. -20.0 cmD. 20.0 cm
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i Lapalli using Newtonian laws.c) (i) A trailer loaded with 500 bags of cement(ii) A racing car(iii) A motor bike. Which of these three has the lowest inertia? Why?
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use correct alternative to complete the indirect speech sentence
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What electromagnetic wave travels the fastest?
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What can we say about the forces? A. They are balanced. B. They are unbalanced. C. They are not in equilibrium.
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when a wave is bent by traveling from one medium to anothera- reflectionb- refractionc- absorptiond- propagation
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unA block of 48kg 18is restinga slope of a 23 angle.khat is the normal reachion Force?
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Calculate the force of an object shot in the air with a mass of 2 kg and an acceleration of 9.81 m/s2.
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How is the reflection of a lightray from a plane mirror different from therefraction of a light ray as itenters a piece of glass?
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A is a hot object. B is a cold object. the two are brought into contact with each other so that heat is developed A) which of the two gets hotter and why?B) when does the exchange of heat stop?
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Coherent light with wavelength of 580 nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 m from the slits. The first-order bright fringe is at 4.81 mm from the center of the central bright fringe. For what wavelength of light will the first-order dark fringe be observed at this same point on the screen?
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Assignment: Calculating Speed InvestigationData Analysis:Note: Please submit your data table with this assignment.1. Write your original hypothesis here.2. Calculate the average time for vehicle 1 from the information in your data table. Show all work.3. Calculate the average time for vehicle 2 from the information in your data table. Show all work.4. Calculate the average speed for vehicle 1 from the information in your data table. Show all work, including the formula used.5. Calculate the average speed for vehicle 2 from the information in your data table. Show all work, including the formula used.Conclusion:Think about this information and then write a conclusion based on the data of this experiment. Dont forget to connect the conclusion to the original hypothesis.Were you able to support your hypothesis or not? Be sure to base your answer on the data you collected. Consider whether your conclusion is the only explanation for the data you collected or if there could be alternate explanations. Dont forget to mention any scientific laws or theories you have studied that would apply to this experiment.Follow-up Questions:1. If your experiment did not seem to match the expected results, what did you learn from the experience?2. Instantaneous speed is the rate of motion of an object at a particular moment in time. What change(s) to the experimental procedure would be necessary if you wanted to gather data on instantaneous speed?and as for the data can you please make your own
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the magnet below is cut in half. what will be the result?
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