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A two-stage rocket moves in space at a constant velocity of +4260 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after explosion the velocity of the 1360-kg upper stage is +5970 m/s. What is the velocity (direction and magnitude) of the 2190-kg lower stage immediately after the explosion?
question1a war-wolf or trebuchet was a device used throughout the middle ages to throw rocks at castles and now
Find the de Broglie wavelength of an oxygen molecule of average kinetic energy in air at a temperature of 194.0 K
A single pane glass window of 5 mm thickness and dimensions 3ft x 2ft is positioned vertically. if the inside temperature is 74 degrees F and the outside temp is 88 degrees F, determine how much heat enters the house through the window in 1 hour.
the pericarppart of a popcorn kernel is a small container of liquid water. when the poppcorn is heated to about 180 degrees C, what is the change in entropy of the water due to the vaporization and expansion
a long thin sierra pacific power line kilometers long carries a uniformly distributed charge of 8.1 microcoulombs per
A solenoid is designed to produce a magnetic field of 2.50×10?2 at its center. It has a radius of 1.70 and a length of 44.0 , What total length of wire is required
question a solid sphere of weight 36.0 n rolls up an incline at an angle of 30.0deg. at the bottom of the incline the
The sound intensity 59 m from a wailing tornado siren is 0.11 W/m2. (a) What is the intensity at 1190 m (b) The weakest intensity likely to be heard over background noise is 1 µW/m2.
An object moves uniformly around a circular path of radius 20.5 cm, making one complete revolution every 2.40 s. What is the translational speed of the object
Consider a square current loop (L = 26 cm) that carries a current I =5.2 A (see figure below). A constantmagnetic field B = 0.21 Tmakes an angle θ = 31° with the direction normal to the plane ofthe loop and perpendicular to the line connecting poi..
Why do proto-stars, black holes, X-Ray binaries with jets, active galaxies and quasars have very similar geometries (i.e. how they appear)? What mechanisms dictate this geometry? What type of differences are there between these geometries? Are their ..
Use the principle of superposition and the boundary conditions for a stretched string with a fixed or free end to explain the form of reflected pulses. Explain and use the mathematical expression for a standing wave
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