Physics

I can fly but have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
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6xy from -12xyplease give me a answer this question
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Which statement best describes this situation
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A force of 1200N is creating a pressure of 60Pa on a surface. Calculate the area of the surface.
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32. Increasing the amplitude of a sound wave produces asound with1. lower speed2. higher pitch3: shorter wavelength4. greater loudness
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What is the weight of a 25 kg object on Earth with an acceleration due to gravity of 9.8m/s/s?2.45 n24.5 n245 n2450 n
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weight is measured in units called
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Which of the following are made mostly or entirely of proteins? (Select all that apply.)carbohydrateshormonesfatsbody tissues
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One of the smallest planes ever flown was the Bumble Bee II, which had a mass of 180 kg. If the pilots mass was 70 kg, what was the velocity of both plane and pilot if their momentum was 20,800 kgm/s to the west?
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The asteroid has an estimated mass of 4000 kg and an orbital speed of 10 m/s. Determine the amount of kinetic energy of the asteroid. *
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In which beaker were the particles moving the most slowly?O A. Beaker C: 15CB. Beaker D: 18CC. Beaker B: 9CO D. Beaker A: 3C
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You are driving your car on a very cold late Fall day. You clear a turn and see a couple of pedestrians standing at the cross walk. They are eager to cross the road and to get into the warmth of their apartment as soon as possible. You have two options: continue driving your car as you were without lowering your speed and drive right by the pedestrians OR slow down, stop right at the crosswalk, and yield to the pedestrians. Although by Virginia law the choice is clear, what about Physics laws? Which scenario (passing by or slowing down and stopping at the crosswalk to yield) will minimize the time the pedestrians are out in the cold freezing before they can cross the road?Make the following assumptions in your argument. Before you noticed the pedestrians, you are moving with a constant velocity v=22 miles/hour. The distance at which you noticed the pedestrians is D=23 meters. Write down a symbolic expression for the amount of time, tpass , the pedestrians will have to wait till they cross the road if you simply drive by without slowing down or speeding up.Write down a symbolic expression for the amount of time, tstop, the pedestrians will have to wait till they cross the road if you slow down, come to a complete stop at the crosswalk and yield to the pedestrians.
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As Clinton walks he pushes his shoe against the track.Which of the following best describes the reaction force to Clinton's shoe pushing against the track?OA. The track pushes back on Clinton's shoe with the same force..The track pushes in the same direction as Clinton's shoe with the same force.OC. The track pushes against gravity with the same force.The track pushes in a different direction with a different force.
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**WILL MARK BRAINLEST* The diagram below shows a model of the greenhouse effect... Which process would happen MORE if the amount of greenhouse gasses in the Earth's atmosphere INCREASED? *Process A (Infrared heat escaping into space)Process B (Sun sending light energy to Earth)Process C (Infrared heat being trapped in the atmosphere)None of those processes would happen more with increased greenhouse gasses.
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3. If a spring extends by 3 cm when a 4 N weight is suspended from it, find the extensionwhen the weight is changed to(a) 8 N(b) 10 N(c) 14 N
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Which of the following describes a reference point?A. The location of an object before its motion beginsB. The center point of a gridC. The point at which the direction of motion changesD. The position of an object after its motion has stopped
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who can teach me phsics
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A screw-jack used to lift a bus is a A) first order leverB) second order leverC) pulleyD) screw
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A ball is thrown straight up with an initial velocity of 128 ft/sec, so that its height (in feet) after t sec is given by s(t) = 128t-16t2. (a) What is the average velocity of the ball over the following time intervals? [3,4] ft/sec [3,3.5] ft/sec [3,3.1] ft/sec (b) What is the instantaneous velocity at time t = 3? ft/sec (c) What is the instantaneous velocity at time t = 6? ft/sec Is the ball rising or falling at this time? rising falling (d) When will the ball will hit the ground? t = sec
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Missy Diwater, the former platform diver for the Ringling Brother's Circus had a kinetic energy of 15,000 J just prior to hitting the bucket of water. If Missy's mass is 50 kg, then what is her speed?
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so by the shape look at this what will the time acceleration speed or velocity be in a beyblade what is the average if the beyblade spins for atleast 45 seconds and the beyblade weighs 55 grams what is the speed or acceleration of the beyblade?
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A ball of mass m=10g, carrying a charge q =-20e is suspended from a string of length L= 0.8m above a horizontal uniformly charged infinite plane sheet of charge density = 4e/m^2. The ball is displaced from the vertical by an angle and allowed to swing from rest. Required:a. Obtain the equations of motion of the charged ball based on Newtonian laws of motion. b. Assume the displaced angle is small and simplify the results obtained in part (a) to obtain the frequency of oscillations of the charged ball.
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Helppp!!!!! Please!!A 0.144 kg baseball approaches a batter with a speed of 20m/s . The batter lines the ball directly back to the pitcher with a speed of 30m/s . Find the impulse exerted on the ball . If the bat and ball were in contact for 0.012 sec , find the average force exerted on the ball by the bat????
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PLEASE HELP ASAP!!Select the correct answer.According to this map, which county in Florida is most in need of safe rooms and hurricane ties?A. HillsboroughB. JeffersonC. Palm BeachD. Miami-Dade
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