Determine the charge within a cubical boxof side
Determine the charge within a cubical boxof side = 25 m, where the box is oriented sothat four of its sides are parallel to the field lin
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A 0.027 kg golf ball moving at 18.3 m/s crashes through the window of a house in 4.8 10-4 s. After the crash, the ball continues in the same direction with a speed of 12.0 m/s. Assuming the force exerted on the ball by the window was constant, wha
A train at a constant 46.0 km/h moves east for 41.0 min, then in a direction 51.0° east of due north for 21.0 min, and then west for 51.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip
A man drops a rock into a well. He hears the sound of the splash 3.2 seconds after he releases the rock from rest. The speed of sound in air (at the local ambient condition) is 338 m/s.
From the angular displacement 49 ? of the two bullet holes in the disks and the rotational speed 1142 rev/min of the disks, we can determine the speed of the bullet.What is the speed of the bullet?
A 20 kg loudspeaker is suspended 2.2 m below the ceiling by two 3.0-m-long cables that angle outward at equal angles. What is the tension in the cables?
A tank having a volume of 0.100 m3 contains helium gas at 130 atm. How many balloons can the tank blow up if each filled balloon is a sphere 0.300 m in diameter at an absolute pressure of 1.45 atm?
What is the magnitude of the average force required to stop an 1500 kg car in 6.0 s if the car is traveling at 70km/h ?
A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle.
The position of a mass M on a spring of constant k is represented by the formula x(t) = [0.60sin(2.5t+1)]m. Find the amplitude and angular frequency of the motion.
An object 5 cm high is located 75 cm from a converging lens (X1 = 75 cm) of focal length f1 = 50 cm. What must be the focal length f2 of the second lens so that the final image appears on the screen?
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