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a block, m= 3 kg, slides on a frictionless horizontal surface.It then goes up a 15 degree incline having a coeffecient offriction uk=0.30 a distance L before stopping. The initial velocityof the block on the horizontal sureface is 2 m/s.
a) find the acceleration of the block on the plane. Why is itnegative?
b) find the distance L in meters.
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor.
A proton is accelerated from rest through a potential difference of 9.0V. Find the energy of the particle and the speed of the particle Through what potential difference would an electron need to accelerate to achieve a velocity of 1.00 x 10 7m/s?
A 3.65 kg particle is located on the x-axis at xm =?8 m, find the coordinate of the center of mass of this two-particle system
A computer to be used in a satellite must be able to withstand accelerations of up to 27 times the acceleration due to gravity. What is the minimum amplitude of vibration
The four tires of an automobile areinflated to a gauge pressure of 2.0 x 105 Pa. Determine the weight of the automobile
A ship sails 130 km due north from island A to island B and then 92 km, in the direction 22° south of east, to island C. Calculate the magnitude and direction of the displacement vector in the last trip
you are to purchase a grating that will cause the deflection of the n=2 second- order bright band for red light to be 42°. How many lines per centimter should your grating have
An isolated capacitor of unknown capacitance has been chargedto a potential difference of 100 V. Calculate the unknown capacitance
Place the following temperatures in order from least to greatest, and explain what each temperature represents using thermodynamically sound principles:
A 12.9-?F capacitor, a 22.1-k? resistor, a switch, and a 25.0-V battery are connected in series. What is the rate of change of the elecric field between the plates of the capacitor
To build some of the islands in the arabian sea, massive boats suck sand from the sea floor and propel it into a massive pile, what constant force must the engines provide to keep the boat in place
At one instant a bicyclist is 49.0 m due east of a park's flagpole, going due south with a speed of 14m/s. Then 35.0 s later, the cyclist is 49.0 m due north of the flagpole, going due east with a speed of 14m/s.
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