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Aircraft A weighs 1000kg, traveling at 25m/s crashes into Aircraft B weighing 1500kg that is parked. After the collision, both aircraft skidded for 9.7s at a speed of 10m/s. How far did the aircraft slide?
A "195-watt" light bulb uses an average power of 195 W when connected to an rms voltage of 120 V. What is the resistance of the light bulb
A car travels at a constant speed around a circular track whose radius is2.2km. The car goes once around the track in290s. What is the magnitude of the centripetal acceleration of the car?
In compressing the spring in a toy dart gun, 0.9 J of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.05 kg, What is the dart's speed
one of your classmate has a friend with a boat. here is your classmate on water-skis being towed. what is the friction force of the water
A 50 gram ball enters a a pendulum with mass 200 g. The pair then swings up to a height of 12 cm. Find the velocity at which the pair move immediately after the collision
a 60.0-kg runner expends310w of power while running a marathon. assuming that 11.0of the energy is delivered to the
A constant force of 45 N directed at angle ? to the horizontal pulls a crate of weight 100 N from one end of a room to another a distance of 4 m. Given that the vertical component of the pulling force is 12 N, calculate the work done by the force in ..
What is the area of contact of each tire. find the coefficient of static friction between the car and track from these data.
Two astronauts of equal mass 70 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 14 meters. What is the new angular velocity of the two astronauts
To estimate the size of the moon, a person holds a round pencil of diameter 0.70 cm. When the pencil is 77 cm in front of his eye, What is the angle subtended by the moon
monatomic molecules adsorbed on a surface are free to move on this surface and can be treated as a classical ideal two
A non-conductor sphere of radius a has a negative chargedistribution given by the function p = -c / r2 where cis a positive constant with units of C/m) calculate the charge on the spher.
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