Physics

Suppose a blanket has a sock stuck to it due to static electricity. When you pull the sock off of the blanket, what happens to the potential energy between them?
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Which statement describes one way that nuclear fission differs from nuclear fusion? A. Nuclear fission can be sustained only in the Sun and other stars. B. Nuclear fission can occur spontaneously. C. The temperature required for nuclear fission is more than 15 million degrees Celsius. D. It is more difficult to start and control nuclear fission,
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A ramp that is 8 meters long raises an object 2meters. What is the mechanical advantage
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A 51.0 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 225 N. For the first 10.0 m the floor is frictionless, and for the next 10.5 m the coefficient of friction is 0.17.What is the final speed of the crate after being pulled these 20.5 meters?
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If the driver slammed on the brakes, what could happen to the crate?
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A behavior that is developed by observing others or being taught isInherited TraitsInherited FunctionLearned behaviorCharacteristic
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Imagine you leave the dock on a fishing boat that travels east for 30 kilometers when the captain realizes he left the fishing rods on the dock. It takes him 40 minutes to travel out against the current but only 20 minutes to return to the dock.
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How does friction affect the output of machines?
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Calculate the charge if one miliAmp flows for 1 second
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Please help please real quick
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1. Sketch a picture of the components of a galaxy. Write the name of our galaxy as the title of your drawing.2. Investigation3. Ervin is a current 5th grade student. One weekend he went on a trip to the beach with his family. After arriving at the beach, his mother put sunscreen on him to protect him from the Sun. Ervin and his older brother decided to go swimming in the ocean. While swimming his brother pointed out how large the Sun appeared. Later in the day, the Sun was covered up by dark clouds. When the Sun got covered, Ervin decided to stop swimming.At school on Monday, Ervins class was learning about the Sun. Ms. Chabert, his teacher, posed 3 questions to the class. Ervin was excited because he was able to use what he learned about the Sun at the beach to answer each question correctly. Use what YOU know about the Sun to answer the questions that Ervins teacher posed to the class. Answer in complete sentences please.A. Is the Sun a star?B. Why does the Sun appear large and bright?C. Is the Sun the largest star in the sky?D. What types of energy does the Sun give off?E. How does energy help us on a daily basis?
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All EM waves (light waves) travel at the same speed through the vacuum of space. If the different types of waves are distinguished by their frequency, what basic characteristic of the waves determines their difference
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In the diagram below, what is the potential difference across the 3.0-ohm resistor?
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How far could you walk backwards in one hour? Use your speed from the 10m test to calculate the answer. Show your work or you will not receive credit.
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A police siren of frequency fsiren is attached to a vibrating platform. The platform and siren oscillate up and down in simple harmonic motion with amplitude Ap and frequency fp. Use v for the speed of sound. Part A Find the maximum sound frequency that you would hear at a position directly above the siren. At what point in the motion of the platform is the minimum frequency heard
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Sound wave with of frequency of 300 HZ is traveling with a wavelength of 1 m what is the speed?
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Which image best illustrates diffraction?
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6. When green, blue and red lights flash together what color do you see? 7A. ____________________ means to bounce off, and ____________________ means to take in or soak in . 7B. When no light was reflected from the object to your eyes, what color did you see? __________________________ 7C. In order for you to see anything, _____________________ has to reflect (bounce) from the object to your eye. 7D. A red card reflects ________________________ back to your eyes and absorbs what colors?
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How do you calculate kinetic energy without velocity
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a solid sphere and a hollow sphere with equal mass are rotated about an axis through their centers. both spheres experience equal torque. which sphere will reach a speed of 10 rad/s first? Explain your answer.
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3.Two Cars, A and B, (starting, at the same time, from the same point) are movingwith average speeds of 40 km/h and 50 km/h, respectively, in the same direction.Find how far will Car B be from Car A after 3 hours.
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. Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.)
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The energy of a machine that is transformed into heat:is destroyedcan always be used for additional workusually cannot do any further workcan be transformed back into mechanical energy
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Cindy follows her dog around a circle having a radius of 7.40 m.a) What distance did she travel? b) The trip took 54 seconds. What was her speed?c) What was the magnitude of her velocity?
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