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A 40.9 kilogram weather rocket generates a thrust of 1125 Newton. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 838 N/m, is anchored to the ground. Initially, before the engine is ignited, the rocket sits at rest on top of the spring. Determine how much is the spring compressed?
A 5.50-mol sample of H2 gas is contained in the left side of the container shown below, What is the entropy change of the gas
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
A 3.0 kg particle with velocity v = (5.0 m/s) i -(6.0 m/s) j is at x = 3.0 m, y = 8.0 m. It ispulled by a 7.0 N force in the negative x direction. What torque about the origin acts on the particle?
A wagon is rolling forward on level ground. Friction is negligible. The man sitting on the wagon is holding a rock. Determine the speed of the wagon after the rock is thrown directly forward
the parallel-plate capacitor used on each key of a computer keypad is a square 0.5 cm on a side. between the plates is
A charge of 3.80 10-6 C is placed on a small conducting sphere that is located at the end of thin insulating rod whose length is 0.22 m. The rod rotates with an angular speed of ω = 156 rad/s about an axis that passes perpendicularly through its o..
An x-ray beam of a certain wavelength is incident on a crystal, at 31.3° to a certain family of reflecting planes of spacing 41.4 pm. what is the wavelength of the x rays in nanometers
Water moves through a constricted pipe in steady, ideal flow. At the lower point the pressure is 1.65 105 Pa and the pipe radius is 2.60 cm. Find the volume flow rate through the pipe
How long does it take the Sun to melt a block of ice at 0?C with a flat horizontal area 1.0 m2 and thickness 1.3cm
Demonstrate the concepts pertinent to this problem. A 1.60-cm-high object is situated 20.6 cm in front of a concave mirror that has a radius of curvature of 13.1 cm. Compute (a) the location and (b) the height of the image.
Which could potentially reason you the greater injury; being tackled by a light-weight, fast-moving football player, or being tackled by a player with double the mass however moving at half the speed?
A car of mass 1490 kg rests on a hydraulic lift with a piston of radius 0.26 m that is connected to a second piston of radius 0.031 m. what is the force at the second piston
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