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The initial speed of a 2.8-kg box traveling up a plane inclined 37 degree to the horizontal is 3.96 m/s. The coefficient of kinetic friction among the box and the plane is 0.30. (a) How far along the incline does the box travel before coming to a stop? (b) What is its speed when it has traveled half the distance found in Part (a)? m/s
in a spherical metal shell of radius r an electron is shot from the center directly toward a tiny hole in the shell
select the quantity that has changed(velocity or speed) for a car that travels north at 88 km/h and then turns east while continuing to move at 88 km/h. define your answer.
A physics professor demonstrates the Doppler Effect by tying a 550 Hz sound generator to a 1.0-m-long rope and whirling it around her head in a horizontal circle at 120 rpm. Suppose the room temperature is 20oC. What is the highest frequency heard wi..
A proton is projected in the positive x direction into a region of uniform electric field Earrowbold = (-5.40 multiplied by 105) i hat bold N/C at t = 0. Determine the time interval over which the proton comes to rest
many masons base the cost for a job on the number of blocks the number of blocks they need to lay. doyel masonry
A half-Atwood's machine consists of two masses, m1 = 8 kg and m2 = 5 kg, which are connected by a light string that passes over a pulley. what speed will it have just before hitting the floor
When the distance is 0.20m the tension is 628 N, horizontal pivot force is 581 N and the vertical pivot force is 839N. What is the mass of the bell
a proton is released from rest in a uniform electric field of magnitude 412 nc. a find the electric force on the
A person is riding a bicycle, and its wheels have an angularvelocity of +18.5rad/s. What is the angular acceleration of each wheel
Two loudspeakers emit sound waves along the x-axis. A listener in front of both speakers hears a maximum sound intensity when speaker 2 is at the origin and speaker 1 is at x = 0.550 meter. Evaluate the phase difference between the speakers
a high-voltage copper transmission line with a diameter of 1.40 cm and a length of 300 km carries a steady current of
A certain automobile manufacturer claims that its deluxe sports car will accelerate from rest to a speed of 44.5 m/s in 8.45 s. Determine the average acceleration of the car
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