Master Physics with Fun Quizzes & Brain Teasers!

A block with mass 4kg is suspended from a vertical Spring. What is the spring constant if the ebrignation of the spring is 10cm? Use g=10
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Part (b)A cassette recorder uses a plug-in transformer to convert 120 V to 12.0 V, with a maximum current output of 355 mA. (b) What is the power input (in W)?
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How do i solve the ones in red? A student fires a cannonball horizontally with a speed of 24.0m/s from a height of 51.0m. Neglect drag.
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A 2000 kg car skids to a halt on a wet road where mk= 0.70. How fast was the car traveling if it leaves 75m long skid marks?
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Find points that are in phase with point A and B respectively Determine wavelength, T, F and the speed of the wave
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Describe a longitudinal wave for particle motion and energy motion
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how fast is the cheetah running in m/s
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MINECRATHI CHASE NOZaland NorthINVATAE. 09.8 m/s5. An object of mass 12 kg is being pulled on afriction less horizontal surface by means of twostrings. One of the strings has a tension of 24 N and makesan angle of 40 degree with the horizontal. The other string ispulling horizontally and has a tension of 20 N.Calculate the acceleration of the object. (1 point)A. O5.465 m/sB. O 0.482 m/s2C. O4.767 m/s^D. 03.199 m/sE. 01.318 m/sM
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Increasing the potential difference across the two plates of a capacitor will _________________.Group of answer choicesincrease the chargedecrease the chargeincrease the capacitancedecrease the capacitance
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t=4s2. A boat accelerates at a rate of 6.0 m/s down the river. How much time will it takethe boat to speed up to 70 m/s?
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Hi Im having some difficulty with this question could really use some help!
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A .15 kg is thrown in a straight line with a force of 10 N. If a perpendicular cross wind exerts a force of 2.2 N on the ball, what is the acceleration of the ball?
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Which planet has the most gravity?A. EarthB. NeptuneC. MarsD. Jupiter
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If the hydraulic lift in question 1 needs to lift a car with a weight of 6000 N, what is the surface area of the lifting platform to balance the pressures?Question 1 for reference:1.If a hydraulic lift uses a force of 400 N on a piston of area 0.065 m2, what is the pressure on the piston? (10 points) Approximately 6153.84 Pa
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Can you please help me with the 1st law of thermodynamics (What does the variables in the formula mean) and a example of the first law
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Hello I was on with a tutor and I got closer the app I still need help answering this question!
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A force of 16 N to the west is applied to each object below. Which object willundergo the greatest change in momentum?A A 20 kg object that is moving east at 5 m/sB A 20 kg object that is moving east at 10 m/sC A 15 kg object that is moving east at 5 m/sD A5 kg object that is moving east at 10 m/s
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Cristina mixed 10kg of water at 70 with 20 kg of water at 20C,if an equilibrium temperature of 40C was obtained,find the heat absorbed by the mass of 20kg.A:400 kcalB:300 kcalC:450kcalD:350 kcal
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A wrestler brings a barbell down to his chest as he bench presses 90 kg. If the barbell accelerates downward at a rate of 2.69 m/s^2 , what is the force exerted by the wrestler on the weights?
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How long would it take an object with deceleration 2m/s to go from 10m/s to 4m/s?
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Benjamina started her walk from the front door of herground floor apartment. She walked 6 meters to thecorner of the building and then turned the corner andwalked 10 meters to her friend's apartment. Identify thedifference between the distance she walked and herdisplacement
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A cylinder hydraulic press has a small piston with a diameter of 3 m, and the diameter of the large piston is unknown. Suppose a force of 800 N is applied onto the small piston to lift the 250 kg load. The hydraulic press follows Pascal principle.Calculate the diameter of the large piston and estimate the force needed if additional load of 50 kg is added.
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An airplane starts from rest on the runway. The engines exert a constant force of 78.0 kN on the body of the plane (mass 9.20 104 kg) during takeoff. How far down the runway does the plane reach its takeoff speed of 75.0 m/s?
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Measure how high you can jump then calculate your initial velocity. Jump Height= .749 metersBe sure to show your workvf = vi + atX = vit + at^2vf^2 = vi^2 +2axX = (vi + vf)t
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