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A bag of cement weighing 325 N hangs in equilibrium from three wires as suggested in figure 1. Two of the wires make angles θ1 = 60.0° and θ2 = 40.0° with the horizontal. Assume the system is in equilibrium.
Suppose you whirl a yo-yo about your head in ahorizontal circle.a. In what direction must a force act on the yo-yo? b. What exerts the force?
question a 5.0- strand of dna carries charge per of length. treating it as a charged line whats the electric field
For the circuit to the below, consisting of three ideal batteries and three ideal resistors, calculate the current through point P. Let the sign of the current correspond to its direction, with "up" being positive.
Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are v1i = 27 m/s and v2i = 14 m/s. What is the final velocity of the other puck
Two point charges are on the y-axis. A 6.0 µC charge is located at y = 1.50 cm, and a -2.46 µC charge is located at y = -1.40 cm. (a) Find the total electric potential at the origin. (b) Find the total electric potential at the point having coordi..
an object is moving in the -direction at 1.4 ms when it undergoes an acceleration . a 0.52j ms2 find its velocity
the magnetic flux through a circuit is reduced from 35 tm2 to 5 tm2 in 0.1s. the current induced in the circuit is 3.6
A copper vat is 10-m long at room temperature (20°C). How much longer is it as it contains boiling water at 1 atm pressure.
the green blockb has a mass of 7.00 kg and is moving to the left at a speed of 2.60ms. the red block a has a mass of
A light ray of wavelength 559 nm is incident at an angleθ on the top surface of a block of polystyrene bounded by water. Discover the maximum value of θ for which the refracted ray will undergo total internal reflection at the left vertical face of t..
A geologist finds that a Moon rock whose mass is 10.51 kg has an apparent mass of 6.28kg when submerged in water. What is the density of the rock
If a car accelerates from 5 m/s to 15 m/s in 2 seconds, what is the car average acceleration
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