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Question: The drawing shows an equilateral triangle, each side of which has a length of 2.65 cm. Point charges are fixed to each corner, as shown. The 4.00 C charge experiences a net force due to the charges qA and qB. This net force points vertically downward and has a magnitude of 427 N. Determine (a) charge qA, (b) charge qB.
Due to the nature of the wastewater, the engineer wants to target the high end of this range. Find the proper diameter pipe to the nearest 2” (e.g., 2”, 4”, 6”, 8”, 10”, etc.) to achieve this design objective.
Suppose the end of your finger is charged. (a) Estimate the breakdown voltage in air for your finger. (b) About what surfacecharge density would have to be on your finger at this voltage?
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of the book are vertical to the book and are horizontal.
Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 33.0 degree below the horizontal
Consider a string of length 1.0 meter, fixed at both ends, with mass 100 grams and tension 100 Newtons. Give the number of nodes and antinodes set up on the string if it is driven at a frequency of 95 hertz. Be sure to include the ends of the string ..
What angle did the hawk make with the horizontal throughout its descent? For how long did the mouse enjoy the free fall.
you are standing on a platform and you throw a 5kg ball with a speed of 10 m/s at an angle of 30 degrees with respect to the horizontal. find the horizontal distance the bal travels before it hits the ground
In fact, it is found that if the heavier mass is given a downward speed of 0.30 m/s, it comes to rest in 6.5 second. Find the average frictional torque acting on the pulley
Two known forces F1 = 2.5 N at 79o below the +x axis and F2 = 2.5 N at 39o above the - x axis are acting on an object. What is the magnitude of the third force F3 so that the acceleration of the object is zero
A light signal is sent from the origin of a system K at t=0 to the point x=3m, y =5m, z = 10m. a) At what time t is the signal received? b) Discover (x’,y’, z’, t’) for the receipt of the signal in a frame K’ that is moving along the x axis of k at ..
Two objects have exactly the same mass. If object A weighs 300N on the Moon what would Object B need to weigh on Earth?
The maximum speed of a child on a swing is 5.3 m/s. The child's height above the ground is 1.2m at the lowest point in his motion. How high above the ground is he at his highest point?
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