Answers edited by Morgan
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Hey ,I am too much confused in taking the sign of g (means in equations like F=mg g should be eq
ual to -9.8m/s2 or 9.8m/s2?
Please answer with complete explanation..
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Which curve is more steeper, isothermal or adiabatic? Explain please
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A ball with a mass of #720 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #36 (kg)/s^2# and was compressed by #5/8 m# when the ball was released. How high will the ball go?
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Question #6e7c7
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What is the difference between center of gravity and center of mass?
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How can we show that the the center of a circle with radius #7/2# is #(7/2,0)#?
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What is the momentum of a #400"kg"# object moving with velocity #8"m"//"s"#?
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If a #3/2 kg# object moving at #5/3 m/s# slows to a halt after moving #4/3 m#, what is the coefficient of kinetic friction of the surface that the object was moving over?
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A person cannot read books placed nearer than #50"cm"# from their eyes. What type of lens should they use to correct this?
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Question #7d3d7
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An object with a mass of #8 kg# is on a plane with an incline of # - pi/3 #. If it takes #16 N# to start pushing the object down the plane and # 15 N# to keep pushing it, what are the coefficients of static and kinetic friction?
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A particle is moving in x - axis according to relation #x= (4t - t^2 - 4)# m then?
**The question has multiple answers**.
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Calculate the mean-square speed, of krypton atoms in a sample of gas at a temperature of 22ÂșC?
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What is the moment of inertia of the earth?
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A projectile is shot from the ground at an angle of #pi/4 # and a speed of #9 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?
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A hockey player of mass 50kg runs at 20 m/s toward another player of 40kg, moving at -10 m/s. They collide. What are the final velocities of the players?
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What is the idea of Thermal Expansion?
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What is the net electric field?
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In a string of 12 christmas lights, 3 are defective. Bulbs are selected at random, one at a time, until the third defective bulb is found. What is the probability that the third defective bulb is the third bulb tested?
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Is the acceleration of a free-falling object uniform?
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A projectile is shot from the ground at an angle of #pi/8 # and a speed of #7 /12 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?