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A 1500-kg satellite initially moving at 10 m/s to the left burns its rocket engine for 4.0 seconds. After the burn, the satellite is moving at a final velocity of 20 m/s to the right. What was the impulse on the satellite during the burn?
How much kinetic energy is lost in the collision. compute the focal length of the mirror.
a 9 kg bar 1.5 m long is set up to rotate about its center (the dark circle). Each arrow represents a force that is being applied to the bar. FA = 15 N, FB = 28 N, FC = 35 N, & FD = 19 N. Determine the angular acceleration of the bar
If a car traveling at 62 km/h will skid 22 m as its brakes lock, how far will it skid if it is traveling at 120 km/h when its brakes lock.
A severe thunderstorm dumped 2.4 in of rain in 30 min on a town of area 42 km2. What mass of water (in kg) fell on the town
A lens system consists of two lenses, one is converging and the other is a diverging lens. A screen is placed 32 cm to the right of the converging lens. Find the focal length of the diverging lens
Compute the distance of two point's p1 and p2 in the x-y plane with the following Cartesian coordinates: p1= (-5m, +8m), p2= (+3m, +2m). Draw the position vectors into appropriate-points.
If the orientation of the spacecraft is to be changed by 30.0°, for what time interval must the gyroscope be operated.
The mass of a robot is 5200 kg. This robot weighs 3750 N more on planet A than it does on planet B. Both planets have the same radius of 1.33 107 m. What is the difference among MA - MB in the masses of these planets?
A sky diver (m = 58.0 kg) jumps out of an airplane at 20,000 feet and has a v2 drag coefficient of D = 0.26 kg/m. Find the terminal velocity for this diver in air
The motor of an electric drill draws a 8.11 A current at the power line voltage of 120 V rms. What is the motor's power (in W) if the current lags the voltage by 27.1°
On a vacation flight, you look out the window of the jet and wonder about the forces exerted on the window.
A container has a pressure of 4 atmospheres and is at the temperature of 200 degrees celsius, what is the average distance between molecules (assume container is a cube)
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