Physics

If you were to get up out of your seat and walk to the office, then return and sit in your seat again what is your displacement?
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Three different forces are pulling on a heavy trapdoor (Figure 4.6). Whichforce will have the biggest turning effect? Explain your answer.
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the amount of internal energy needed to raise the tempreture of .25kg of water by 0.2C is 209.3 J. how fast must a 0.25 kg baseball travel in order for its kinetic energy to equal this internal energy?help me!
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a body is thrown up from a wall of height 2.2m with a speed of 10ms^-1 the distance travelled in the last second of its motion
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the mean distance of an asteroid from the sun is 4.55 times that of earth from the sun. from kepler's law of periods, calculate the number of years required for the asteroid to make one revolution about the sun.
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A student swings ball of mass M on the end of a string in vertical circle of radius R,as shown in the figure below. Also shown is diagram representing all the forces exerted on the ball at the bottom of the circle where its speed is What is the magnitude of the acceleration of the ball at the bottom of the circle? FTension FGravity A)Fi /MB)Fc /MC)Fr+Fg/MD) Ft- Fg/M
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A 2 kg block, starting from rest, slides 20 m down a frictionless inclined plane from X to Y, dropping a vertical distance of 10 m as shown above. Question The magnitude of the net force on the block while it is sliding is most nearly
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A 5.0 kg block with a speed of 3.0 m/s collides with a 10kg block that has a speed of 2.0 m/s in the same direction.After thecollision, the 10 kg block travels in the original direction with aspeed of 2.5 m/s. (a) What is the velocity of the 5.0 kg block immediately after the collision? (b) By how much does the total kineticenergy of the system of two blocks change because of the collision? (c) Suppose, instead, that the 10 kg block ends up with aspeed of 4.0 m/s. What then is the change in the total kinetic energy? (d) Account for the result you obtained in
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A geostationary satellite for communications seems to be in a fixed spot above the equator because it has the same angular velocity as the earth.a, show that if it goes round once a day its angular velocity is a little over 7 * 10*-5 rad/s.
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what is the answer of this question
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an automobile horn emits a sound frequency of 800 hzas measured by a stationary observer. what frequency would be measured by an observer moving toward the source at 35:0 m
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Which of the following can result in deviations from Beer's law when the path length is constant? Explain your answer.1. All radiation not absorbed by the sample is transmitted to the detector.2. Stray light reaching the detecter.3. Solute conc. exceeding 0.01 M.4. The use of polychromatic radiation.5. The sample is heterogenous Just need the ones that are correct.
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If someone lifts less weight than you, explain why that person could be considered more powerful.
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Three resistors R1 = 87.6 , R2 = 22.0 , R3 = 70.0 , and two batteries e m f1 = 40.0 V, and e m f2 = 364 V are connected as shown in the diagram below.
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For the bar OC: mass=m, length=b, bar AB: mass=2m, length=2b ; for the slider A and B: mass=m. The angular velocity of OC is , (=60?. Kinetic energy of the system T=?
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which is the correct answer
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WILL GIVE BRAINLY - 14 points A quarterback throws a football at 35 m/s at a certain angle above the horizontal. If it took the ball 8.98 s to reach the top of its path, how long was it in the air?rearest hundreth pls!! PSand explain if u can :,) not needed but will help u get the brainliest answer!!!!!!!!!!!!!!!!1111
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What is the force of friction on a sliding object?
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For another identical object initially at rest, no frictional force is exerted during segment 2 (between t = 2 s and t = 4 s). A rope exerts the same constant force of magnitude F T as in the previous scenario. What is the change in the object's kinetic energy during segment 2?
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Track Block A student must determine the inertial mass of a block attained to a horizontal track. The block is free to move horizontally along the track, as shown above, Frictional forces are considered to be negligible. The student may only choose two measuring tools to determine the inertial mass of the block. What tools should the student choose? Select two answers. a. Stopwatch b. Accelerometer . Force sensor d. Meterstick
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a small 1.4 n stone slides down a frictionless bowl, starting from rest at the rim. how hard is the bowl pushing on it
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What does FG gm1m2 r2 mean?
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A 6.0 kg bag of cat food is dropped from 5.0 m ledge. How much mechanical energy doesit have just before it strikes the ground?
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Drag each tile to the correct box.Arrange the events that are believed to have formed the hydrosphere in their order of occurrence.
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