Comets travel around the sun in elliptical orbits
Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.3×10^4 when at a distance of 2.3×10^11 from the center of the sun, what is its speed when at a distance of 6.0×10^10 .
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A sound wave with intensity 16 mW/m2 interferes destructively with a sound wave that has an intensity of 19 mW/m2. What is the intensity of the superposition of the two?
Estimate the amount of free fall time that would be possible that would still allow full deployment of the parachute and a safe landing.
In the next experiment, starting from the same initial conditions, the operator places a mass M = [(P2-P1)A]/g, where P2 is the final pressure of 10 bar, P1 is the initial pressure of 1 bar, is the piston-chamber cross-sectional area and the gravi
In a large lecture course, the scores on the final examination followed the normal curve closely. The average score was 60 points and three fourths of the class scored between 50 and 70 points. The SD of the scores was
A helicopter moves horizontally in the x direction at a speed of 120 mi/h. Knowing that the main blades rotate clockwise with an angular velocity of 180 rpm, determine the instantaneous axis of rotation of the main blades
A cylindrical rod with a diameter of 25mm is subjected to a torque of 500N?m and axial tensile force of 40KN. Draw a stress element on the lateral surface of the bar and label the stresses it experience;
The wires carry current in opposite directions. If the current carried by one of the wires is quadrupled and the distance between the wires is quadrupled, then what will the force's magnitude be (as a multiple of F) and will it be repulsive or att
A simple harmonic oscillator has a mass M0 on a spring of force constant k. The system is damped. It takes 10 cycles for the amplitude of the oscillations to decay to 37% of the original value (i.e. 1/e).
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