Master Physics with Fun Quizzes & Brain Teasers!

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[tex]\huge \sf \: question \: [/tex]Need Help with this question ~ A man of mass 50 kg is pulling on a plank of mass 100kg kept on a smooth floor as shown with force of 100 N. If both man and plank move together find the force of friction acting on the man. Picture is in attachment ~ Thanks for Answering !!
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longitudinal wave is mechanical wave why
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longitudinal wave is mechanical wave why
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why longitudinal wave called mechanical wave?
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[tex]\huge \frak{ \: \: question \: \: }[/tex]Here's One more question ~ A crate of mass m is pulled with a force F along a fixed right angled horizontal through as in the figure. The Coefficient of kinetic friction between the crate and the trough is . Find the value of force F required to pull it along the trough with constant velocity. Picture is attached in question. Thanks for Answering ~
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the skin of tabala is tightened to produce shrill sound why
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[tex] \large \boxed{ \boxed{ \boxed{ \boxed{ \mathfrak{question}}}}}[/tex]A bread of mass m is located on a parabolic wire with its axis vertical and vertex directed towards downward as shown in the attachment and whose equation is x = ay. If the Coefficient of friction is (), the highest distance above the x - axis at which the particle will be in equilibrium. Thanks for Answering ~
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A propane tank is filled with a mixture of liquid and vapor propane. Can the contents of this tank be considered a pure substance? Explain it.
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Consider an automobile moving at v mph that skids d feet after its brakes lock. Calculate how far it would skid if it was moving at 2v and the brakes were locked.
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What is quality? Does it have any meaning in the superheated vapor region?
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26. A weight of 20N stretches a spring by 0.5cm. Calculate theextension when the applied weight is 60N.A. 0.25cmB.1.5cm C. 2.0cm D. 4.0cm
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The speedometer of a motor car showed the following speeds in km per hour at the ends of successive intervals of 3 secs. 38.9, 52.8, 64.4. 73.6, 80.9, 86.1, 90.0, 92.5 Plot the velocity time graph in convenient units and find from the graph, (a) The distance covered while the speed increased from 80 to 90 km/h The accelerations in SI units when the speeds are 50, 70 and (b) 90km/hI will give brainlest to who can answer it
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The higher the voltage across a bulb the b__________ it is.
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A car starts from rest, moving along a straight line, first with an accelerationa = 5m/s^2starting from rest, then uniformly and finally decelerating at the same rate 5m/s^2, comes to rest. If the total time ofmotion of car is 25s and average velocity during the time is equal tov = 20 m/s . How long does the particle move uniformly?Need step-by-step explanation. No spam. Thanks.
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geostationary satellite moves in an orbit of radius 6300km. Calculate the speed with which it moves in the orbit [=227]
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in a collision, a car of mass 1000kg travelling at 24m/s comes to rest in 1.2s calculatea. the change in momentum of the car b. the steady stopping force applied to the car
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Is it true that it takes more energy to vaporize 1 kg of saturated liquid water at 100 C than it would at 120 C?
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A force of 20 N acts over an area of 2 m2. What is the pressure?
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An airplane starts from rest on a runway, there is no wind on this day.the plane accelerates uniformly for 38 seconds until it reaches an air speed 150 mph and lifts off the run way.a. calculate the acceleration of the planeb. calculate the minimum length of the runway required for this takeoffc. would the plane be able to take off if the runway is 980 m, Justify your answeruse SI unitsplease help. if i dont get this right ill fail physics
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escribe verdadero o falso :a) la primera derivada en la funcion de desplazamiento representa fisicamente la velocidad media.b) al calcular la segunda derivada en la funcion de desplazamiento se determina la aceleracion instantanea.c)al calcular la derivada de la funcion f()=2xa la n 4+12 resulta 8x4d)la derivada de la funcion f(x)=2x a la n es f(x)=n2x a la n.
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ve scientific reasons. It is not possible to get a perfect machine in our practice, why?
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someone please help me
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Two forces acting on an object in the same direction. One is 25N West and the other is 15 N West. What is the net force?
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