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A 48000-kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 160000 N over a distance of 2700 km. What is the final speed of the probe?
A 5.0 kg crate slides down a 60.0 incline with an acceleration of 1.9 m/s2. What is the frictional force between the crate and the incline surface
Suppose you drop a feather and a steel ball of equal masses (0.010 kg) at the same time from a height of 1.9 m and you are told that the feather hits the floor 4.5 s after the steel ball. Estimate the feather's drag coefficient
The nucleus of a 125^Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q=+54e, What is the proton's acceleration
A block of mass 0.680 kg is pushed against a horizontal spring of negligible mass until the spring is compressed a distance x
The current in a resistor is given by I = (5.14) sin (70 pi t) when a voltage given by V = (180V) sin (70 pi t) is applied to it. What is the period of the voltage source
Geologists measure conductive heat flow out of the earth by drilling holes (a few hundred meters deep) and measuring the temperature as a function of depth, what rate is the earth losing heat via conduction?
A projectile is fired with an initial speed of 61.7m/s at an angle of 31.9^\circ above the horizontal on a long flat firing range. Determine the maximum height reached by the projectile
A series RLC circuit has R= 50, L= 2.7 H, and C= 52 nF. It is connected to an AC voltage source with an rms amplitude of 12 V, find the average power dissipated by the circuit
A container is filled to a depth of 25.0 cm with water. What is the absolute pressure at the bottom of the container
A parallel plate capacitor is made with plates of 10 cm on a side, situated 0.1mm apart. what is the energy stored on the capacitor
Two cars of equal mass collide on a horizontal frictionless surface. What is the speed of the composite body (AB) after the collision
A speck of dirt is embedded 3.00cm below the surface of a sheet of ice having a refractive index of 1.309. What is the apparent depth of the speck
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