Master Physics with Fun Quizzes & Brain Teasers!

At what angles should a 60kg painter place his ladder against the wall?
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The SPH3U class designs a cannon able to shoot a human being out of it. If the human is launched at a velocity of 40 m/s, 37 from the ground, how far from the cannon should you place a mattress to catch the human if the muzzle of the cannon is 0.75 m from the ground? Hello I need to use kinematic equations and the variables vfvitda
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at skiing competition , a 55 kg skier is coasting down a 25 slope as shown in figure. near the top of the slope his speed is 3.8 m/s . the coefficient of friction between the ski boots and the surface of the slope is 0.14 . by using the work energy theorem , determine the skier's speed after he moved 57 m downhill
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A runner runs 10 m from the origintoward the WEST to point A. He then runs from point A 20 m more toward the WEST to point B. He then runs from point B 30 mmore toward the EAST to point C. The runner's total displacement from the origin to point isMultiple Choice
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A 62.92 microC charge is fixed at the origin. How much work would be required to place a 7.21 microC charge 8.57 cm from this charge ?
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What is the outgoing voltage on a transformer if the primary voltage is 20 V and the primary coil has 100 coils if the secondary coil has 50 coils?Select one:a.25 Vb.20 Vc.10 Vd.100 V
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mr or ms i think the ansewr is 0.74 it is corcet or not
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What happens when a high pressure air mass follows a cold front? 1. Warm and dry 2. Warm and humid 3. Cool and dry 4. Cool and humid
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For a positive charge, the field lines:A.are denser far away from the charge.B.increase in strength at large distances.C.point toward the charge.D.point away from the charge.
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A few years ago, the legal speed limit on the Turner Turnpike between Tulsa and Oklahoma City was changed from 55.0 mi/h to 75.0 mi/h. How much time was saved on the 86.0 mile trip for someone traveling at the legal speed limit? May I have help solving this?
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A roller coaster features a near vertical drop of 95 meters. If the initial velocity was zero, the mass of the cart and riders was 1,000 kg, and the velocity at the end of the drop was 35 m/s, how much of the potential energy was converted into thermal energy?319 kJ218 kJ342 kJ276 kJ
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When a car of mass 1079 kg accelerates from 3.00 m/s to some finals speed, 2.00x10^5 J of work are done. Find the final speed
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A ball is launched horizontally at 150 m/s from a cliff. What is its horizontal velocity after 5 seconds?
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Microwaves of wavelength 9.33 cm are incident on a narrow window that is 34.55 cm wide. If the far wall is 5.73 m away from the window, what is the distance from the central maximum to the first order minimum?
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FinishIf you drop a ball out of a window, it falls towards the ground with the acceleration of 10 m/s". How long will it takethe ball to reach 100 m/s? (assume the ball starts from rest)
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Wind provides which kind of energy ? o The wind provides heat energy. o The wind provides chemical energy. The wind provides electrical energy. The wind provides energy of motion
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In the US, the conventional voltage seen in a recepticle (wall outlet) is 120 V. How many amperes is required to run a stereo that has a resistance of 958 capital omega ?
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The question is in the picture THIS IS A REVIEW IT IS WORTH 0 POINTS
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Look at the picture ofthe two waves.Which of the following statements BESTdescribes the changes between wave A andwave-B-and why?A. The amplitude has increased and that causedthe energy to increase.B. The amplitude has inereased and that causedthe energy to decrease.C. The amplitude has decreased and that causedthe-energy to increass.. The amplitude has decreased and that causedthe energy to dearease.
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Sound waves are longitudinal waves and are also called _____ waves.A.electromagneticB.mechanicalC.transverseD.surface
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Need help with how to calculate the Gravitation potential energy and kinetic energy
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An object has a gravitational potential energy of 72250 J and a mass of 425kg. How high is it above the ground?
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1.A plastic lens has index of refraction n=1.4. If the front of the lens has radius of 1.3 m and the rear of the lens has radius of -0.9 m, what is the refractive power of the lens?1. 0.75 diopters2. 1.5 diopters3. 1.9 diopters4. -0.14 diopters
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a) Draw a diagram to show the forces acting on the sledge b) Consider mechanical energy to find the coefficient of friction between the sledge and the ground
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