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At time t = 0, a projectile is launched from ground level. At t = 2.00 s, it is displaced d = 57 m horizontally and h = 54 m vertically above the launch point. At the instant it reaches its maximum height above ground level, what is its horizontal displacement D from the launch point?
A 120 gcube of ice at 0°C is dropped into 1.0 kg of water that wasoriginally at 86°C. What is the final temperature of the water after the ice has melted
A dialectric constant of 3 is inserted into a parallel capacitor, filling one-half of the volume as shown in the figure. If the capacitance of the capacitor without the dialectric is C,
A person on earth notices a rocket approaching from the right at a speed of 0.81c and another rocket approaching from the left at 0.58c. What is the relative speed between the two rockets
An archer shoots an arrow toward a 300-g target that is sliding in her direction at a speed of 2.50 m/s on a smooth, slippery surface. The 22.5-g arrow is shot with a speed of 35.0 m/s and passes through the target, which is stopped by the impact. Wh..
The terminal speed of a sky diver is 124 km/h in the spread-eagle position and 338 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other
q1. an archer puts a 0.30 kg arrow to the bowstring. an average force of 201 n is exerted to draw the string back 1.3
A projectile is shot with initial velocity 20.0 m/s at launch angle ? = 60.0? up from horizontal. How far from the gun does the other fragment land
Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1400kg/s with a speed of 7.1×104m/s
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 4.4 minutes
A uniform, cylindrical pulley of mass M=12.7 kg and radius R=0.636 m rotates freely about a fixed horizontal axis. obtain the magnitude of the angular acceleration of the pulley
Two positive point charges each have a charge of +q and are fixed on the y axis at y = +a and y = -a. (Use the following as necessary: k, q, a, and x.), Find the electric potential at any point on the x axis
two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 448 N and F2 = 350 N. What is the resultant of these two forces
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