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A block that has a mass of 0.06 kg and a block that has a mass of 2.19 kg are attached to the ends of a rope. A student holds the 2.19-kg block and lets the 0.06-kg block hang below it, then he lets go. What is the tension in the rope while the blocks are falling, before either hits the ground? Air resistance can be neglected.
A machine part is made from a uniform solid disk of radius R = 0.18m and mass M = 8.3kg. A hole of radius R/2 is drilled into the disk, with center of the hole at the distance R/2 from the center of the disk.
a parcel of air moving in a straight tube with a constant acceleration of -3.55 ms2 and has a velocity of 14.5 ms at
A state highway patrol car radar unit uses a frequency of 9*10^9 Hz. What frequency difference will the unit detect from a car receding
Professional baseball pitchers can deliver a pitch which can reach the blazing speed of 100 mph (miles per hour). how much kinetic energy does the ball have
Total required annual electrical energy output from the wind farm =120 TJ Max number of turbines for which there is space on the farm =20. Average annual wind speed at the site= 9.0 ms^-1
Biologists think that some spiders "tune" strands of their web to give enhanced response at frequencies corresponding to those at which desirable prey might struggle.
A water dispenser for pets has an inverted plastic bottle. When acertain amount of water is drunk from the bowl, more water flowsautomatically from the bottle into the bowl. The bowl neveroverflows. Explain the operation of the dispenser. Does the he..
two charges q1 and q2 are 8.0 cm apart. charge q1 5.0 nc and q2 -5.0 nc. what is the the electric field at point p
a proton is located at the origin and a second proton is located on the x-axis at x 6.18 fm 1 fm 10-15 m.a calculate
A 4-g bullet is fired into a 1.4-kg block that is resting on a table. After impact, What was the initial speed of the bullet?
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
Find the magnitude of , the acceleration of the car after the brakes are applied. Express your answer in terms of some or all of the variables d, t, and v.
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