Physics

A block with mass M slides down an incline of angle at constant velocity v.Which of the following expressions is equal to the magnitude of frictional force between the block and the incline? (Note: The acceleration of gravity g = 10 m/s2.)A.Mgsin B.Mgcos C.Mg / sin D.Mg / cos
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It takes a 7 n force to cause a 0. 028 kg object to begin moving. What is the acceleration of the object as it begins to move?.
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For the chain: linear density =, length =l. The chain is placed on the smooth plane. As shown in the figure, the drooping length =b, the chain is stationary at this moment (v=0). Then, under the action of the gravity, the chain drop freely. Determine the speed of the chain when the left end of leave the plane.
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Which force acts on any object moving through the air
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What does a 2 solution mean?
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What is maximum load limit?
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Write the equation for the velocity component in the x-direction?
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In an experiment, a student measured the volume of a substance while the mass was changed. The student measured up to five kilograms. The graph of the data is plotted below.A volume versus mass graph is shown with mass on the vertical axes from 1 to 10 kilograms and volume on the horizontal axis from 1 to 5 milliliters. A line from the origin through all points and beyond.Which of the following is an error the student made in creating an accurate graph? The axes and graph are based only on measured values. The axes are labeled with the incorrect variables. The plotted points do not show all data collected. The title has the incorrect order for the variables.
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The magnetic domains of an unmagnetised object are found___________A.) Parallel to each otherB.) Perpendicular to each otherC.) Pointing towards southD.) Pointing in different direction
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A 0.33-m-long violin string has a mass of 0.89 g. The peg exerts a 45 N force on it. What can you determine about the sound produced by that string?
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a car moving at a steady 10 m/s on a level highway encounters a depression that has a circular cross-section with a radius of 30 m. the car maintains its speed as it drives through the depression. what is the normal force exerted by the seat of the car on a 60.0-kg passenger when the car is at the bottom of the depression?
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16. The diagram shows a design for an electrically operated model railway signed. a) Explain, step by step, how it works. b) Explain how, by adding a scale and a spring, you could use it as an ammeter.
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Describe two vectors a andb such that vector a+ vector b= vector c and a+b=c(b) vector a + vector b= vector a - vector b(c) vector a + vector b + vector c and a2 +b2=c2can you show me how to do this problem and show all work myprofessor didn't go over any of this and i dont have a clue.
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A force of 200N is exerted on an area of 50m. Calculate the pressure exerted by the force
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a wave has a period of .096 seconds. what is the frequency
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How population control helps in sustainable development
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explain how la nina and el nino are similar and different
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Pick the winner! Which do you think will have more momentum and push the other backwards? And WHY? Explain assumptions you make: A big loaded truck driving on the freeway OR a baseball sized meteorite falling down from space
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A rugby player runs with the ball directly toward his opponent's goal, along the positive direction of an x axis. He can legally pass the ball to a teammate as long as the ball's velocity relative to the field does not have a positive x component. Suppose the player runs at speed 5.9 m/s relative to the field while he passes the ball with velocity vector v BP relative to himself. If vector v BP has magnitude 7 m/s, what is the smallest angle it can have for the pass to be legal?1 (relative to +x axis)
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How much work is done on a 6.4N box of books that you move horizontally across a 6.1 meter room?
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the trunk of an elephant is also used for one of these activities which one?
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an ideal vapor-compression refrigeration cycle operates at steady state with refrigerant 134a as the working fluid. saturated vapor enters the compressor at 2 bar, and saturated liquid exits the condenser at 8 bar. the mass flow rate of refrigerant is 7 kg/min. determine
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The angular position of a point on the rim of a rotating wheel is given by = 4.0t - 3.0t^2 + t^3, whereis in radians and t is in seconds. What are the angular velocities att = 2.0{~s}t=2.0s.
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at a given temperature, the values of rate constants for the forward and reverse reaction are ____ and the ratio of k is equal to the ____ constant for the reaction.
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