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A ball is thrown with an initial speed of 27.0 m/s at an angle 64 degrees to the horizontal. Calculate the maximum flight time Δt, if it lands at a point where the vertical displacement Δy is zero. Give your answer to 2 sf.
You are part of a searchand- rescue mission that has been called out to look for a lost explorer. What minimum speed must the rocket have just before impact in order to save the explorer%u2019s life
Two point charges are located on the y-axis as follows: one charge q1 = -1.85nC located at y=-0.585m , and a second charge q2 = 3.10nC at the origin (y=0). what is the direction of the total force
If the basketball weighs 5 times as much as the golf ball, and the collision can be considered elastic, what is the final speed of the golf ball? answer is 4.67 m/s but not sure how to work that.
A child fires a squirt gun horizontally from 1.9 meter above the ground. Find what was the water initial speed
a girl throws a plastic ring hula hoop to the right with a velocity v0 and a movement that produces a counterclockwise
What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 529nm light? The index of refraction of the coating material is 1.53 and the index of the glass is 1.60.
A 5.83 m long ladder with mass 23.1 kg rests against a smooth wall. Find the force of friction between the ladder and the ground
A common belief is that a hole in a jet plane can suck a person out. On an episode of the popular TV series Myth Busters, hosts Adam and Jaime attempted to find whether this is possible. Obtain the force exerted on such a window as the plane flies ..
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. Determine the length of the lake
A rectangular coil in the plane of the page has dimensions a = 46.00 m and b = 80.00 m. A long wire that carries a current I = 4.50 A is placed directly above the coil. For what value of x is magnitude of flux through the coil a minimum.
Suppose that in a hypothetical oil-drop experiment you measure the following values for the charges on the drops: 4.11*10^-19C, 6.85*10^-19C, 2.74 *10^-19C, 1.10*10^-18C, and 9.59*10^-19 C.
When white light is incident on asheet of transparent material, it is found that the emerging lightis red, What is the work function of the material
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