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A skateboarder of mass 60.1 kg is riding her 3.89-kg skateboard at a speed of 5.21 m/s. She jumps backward off her skateboard, sending the skateboard forward at a speed of 7.53 m/s. At what speed is the skateboarder moving when her feet hit the ground?
If you know the mass of a star and a planet's radius and speed at perihelion (closest approach to the star), What is its speed and distance from the Sun at aphelion
a chartered airplane flies 100 km east, then 350 km north west, and then 150 km at 30 degrees west of south. determine the direction of the last leg of the journey
A capacitor is constructed of two 5.3 m2 parallel metal plates separated by an air gap of 0.010 mm. An electric potential of 25 V is applied to the capacitor. calculate the capacitance of the structure
An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the minimum initial speed necessary to meet the path of the arrow. Elucidate the initial speed of the apple?
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 5.4 seconds before stopping, how far did they skid?
A resistance thermometer using a platinum wire is used to measure the temperature of a liquid. The resistance of is 2.42ohms at 0 degrees, calculate the temperature of the liquid
A toy car X of mass .200 kg moves along a frictionless surface with a velocity of .180 m/s. It collides with another toy car Y, with the mass .250 kg and a speed of .130 in the same direction.
An asteroid orbiting the Sun has a mass of 4.00Ã?1016 kg. At a particular instant, How far is the asteroid from the Sun
A motorist inflates the tires of her car to a pressure of 170 kPa on a day when the temperature is -8.0°C. What is the temperature of the tires
What direction is white dot on the sensor pointing
You drive west at 74km/h for 25min , then follow a road that goes 41^\circ south of west, driving at 93km/h for another 36min. Find your average speed for the trip
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did stone fall.
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