Physics

What is the definition of the word PER?
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Both Transverse and Longitudinal Waves transmit____and not_____ A power, work B work, power C energy, matter D matter, energy
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acar start from rest and go with velocity of 4m/s for 4second what is acceleration of car
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Use F = 1/T as your basis:9. Find the frequency of a tuning fork that takes 2.50103s to complete one oscillation.The answer is 400 Hz but please show your work.
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A book on a shelf 2.5 m above the floor has a mass of 1.7 kg. What is the gravitational potential energy of the book?
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Which image corresponds to what moment in time? (1 point) The low-pitched sound corresponds to the sound source getting closer, its wavelength is longer. The high-pitched sound corresponds to the sound source moving away, its wavelength is shorter. The low-pitched sound corresponds to the sound source moving away; its wavelength is shorter. The high-pitched sound corresponds to the sound source getting closer; its wavelength is longer. The low-pitched sound corresponds to the sound source getting closer, its wavelength is shorter. The high-pitched sound corresponds to the sound source moving away, its wavelength is longer. The low-pitched sound corresponds to the sound source moving away, its wavelength is longer. The high-pitched sound corresponds to the sound source getting closer, its wavelength is shorter.
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she incorrect? Select all that apply.because electromagnetic waves can only travel in gasesBbecause electromagnetic waves can only travel through solidsbecause electromagnetic waves only come from the SunDbecause electromagnetic waves are not created using force on a mediummbecause electromagnetic waves are created using accelerating chargesFbecause electromagnetic waves require a medium to travel
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How many times does the light beam shown in FIGURE 26-59 reflect from (a) the top and (b) the bottom mirror?
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1. Why don't you see your reflection in a building made of rough, white stone?
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A proton wit a kinetic energy of 9. 3 x 10^-15 j moves perpendicular to a magnetic field of 0. 87 t. What is the radius of its circular path?
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Two objects of the same mass travel in the same direction along a horizontal surface. Object X has a speed of 5 ms and object Y has a speed of 2 ms, as shown in the figure. After a period of time, object X collides with object Y.Consider the situation in which the objects collide but do not stick together. Which of the following predictions is true about the center of mass of the two-object system immediately after the collision?
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more than one option this is hard
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A body of mass 0.1 kg falling freely under gravity takes 10 s to reach the ground. Calculate the kinetic energy and potential energy of the body when it has travelled for first 6 s. Given, g = 9.8 m/ s
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If a 2.00 kg ball is thrown straight up world and its maximum height is 25.51 m. Approximately how much potential energy (PE) dose the ball possess when it reaches its maximum height (g=9.8 m/s^2)
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How to know if two vectors are linearly independent
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a wind turbine is an example of what kind of devicea. a generatorb. a transformerc. a motord. an electromagnet
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Fill in the blank with the correct response.Light striking a mirror at a 45 angle will be reflected at a
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the earth exerts a gravitational force of 850N on John. What is Johns mass in kg
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Suppose that a simple pendulum consists of a small 60.0 g bob at the end of a cord of negligible mass. If the angle 0 between the cord and the vertical is given by g - (0.0800 rad) cos[(4.43 rad/s) t 0], what are (u) the pendulum's length and (b) its maximum kinetic energy
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The jet engine of an airplane expels hot gas.A. The airplane is propelled in the same direction as the hot gas.B. The airplane is propelled in the opposite direction as the hot gas.C. The airplane is propelled against the outside air.
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Which is the surest test of charge on a body?(a) Repulsion(b) Lightning(c) Combustion(d) Insulation
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How do scientists know that seafloor spreading occurs?Explain how this spreading causes the continents to seperate.
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write comparison between Electrical Circuit and Magnetic Circuit.[tex] \\ \\ \\ \\ \\ \\ \\ [/tex]Thanks!:)
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A ballplayer catches the ball 4 seconds after throwing it straight up in the air. What speed did he throw it and how high did it go?
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