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A .3kg ball is hit towards a wall. It comes into the wall with a speed of 4m/s. If it experiences an impulse of 0.6Ns, what is the final velocity of the ball?
The huge volcanic eruption on the island of Krakatoa, Indonesia, in 1883 was heard on Rodrigues Island, 4,782 km (2,970 miles) away. How long did it take (in seconds) for the sound to travel to Rodrigues? (Assume the air temperature is 20°C.)
An 8.57-kg block slides with an initial speed of 1.64 m/s up a ramp inclined at an angle of 27.3° with the horizontal. Use energy conservation to find the distance the block slides before coming to rest
Two ice skaters, with masses of 40.0kg and 85.0kg , are at the center of a 60.0m -diameter circular rink. how long does the lighter skater take to reach the edge
A typical color television draws about 2.9 A when connected to a 150 V source. What is the efiective resistance of the T.V. set
Two point charges of equal magnitude are 7.3cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 40N/C . Find the magnitude of the charges.
Sketch a ray diagram for a concave mirror with an object atD0=R. Is the image real or virtual? What is the image inverted or upright? Is the image size is magnified, reduced or same size?
Consider the skateboarder in the figure below. If she has a mass of 49 kg, an initial velocity of 23 m/s, what is the work done by friction on the skateboarder
Three sinusoidal waves of the same frequency travel along a string in the positive direction of an x axis. find the phase constant of the resultant wave
Force Upper F, of magnitude 5.90 N and angle θ3 = 30.0° acts on P. All three vectors lie in the xy plane. About the origin, what are the magnitude of (a) the angular momentum of the particle and (b) the torque acting on the particle?
Consider a hot-air balloon. The deflated balloon, gondola, and two passengers have a combined mass of 315 kg, Then find the temperature of the air inside the balloon
Light shines during a single slit whose width is 8.60 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m away. The distance among the middle of the central bright fringe and the first dark fringe is 4.75 mm. What is the wavelength..
To save on heating costs, the owner of a greenhouse keeps 580 kg of water around in barrels. What is the minimum ampere rating of an electric heating system
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