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An incredibly large slingshot is stretched 1.5 meters to launch a 180.0-gram projectile with a speed sufficient to escape from the Earth (11.2 km/s). Assume the elastic sling obeys Hooke's law. What is the spring constant of the device if all the potential energy is converted to kinetic energy? 1.004×107 N/m is the answer to the first part. Need help with the second part below. Assume that the average person can exert a force of 220 Newtons. How many people would be required to stretch the slingshot?
Two balls are simultaneously dropped from a height of 5.0 Part A: How long does it take for the balls to reach the ground? Use 10 for the magnitude of the acceleration due to gravity. Part B: Imagine the ball on the left is given a nonzero initial..
You kick a 2.3 kilogram football straight into the air with a force of 50 Newtons. If your foot traveled 150 centimeters when kicking the ball calculate the work done on the football
Infrared light of wavelength 1.17 um illuminates a 0.34-mm-diameter hole. What is the angle of the first dark fringe in degrees
assume two cans of differently coloured paint at the same temperature can be mixed together adiabatically. the second law of thermodynamics is simply not relevant to this situation
q1. if a thunder clap comes 1.4 s after the lightning strike how far away is the strike? calculating the wavelength and
A car takes 10s to go from v=0 m/s to v=25 m/s at constant acceleration. if you wish to find the distance traveled using the equation d=1/2 at squared, what value should you use for a squared?
Three solid plastic cylinders all have radius 2.50 cm and length 6.00 cm. Find the charge of the cylinder
A convex lense of focal length 18 cm is used as a magnifying glass. at what distance from a tiny insect must you hold this lense to get a magnification of 3.
A block is released from rest at the top of a frictionless ramp (inclined plane) that makes an angle of 25° with respect to horizontal. What is the length of the ramp D1
Two spherical shells have a common center. A -3.00 x10-6 C charge is spread uniformly over the inner shell, which has a radius of 0.050 m. A +4.00 x10-6 C charge is spread uniformly over the outer shell, which has a radius of 0.15 m. Find the magnitu..
what is the magnitude of its velocity after the collision. A soccer player applies a force of 60.5 N to a soccer ball while kicking it. If the ball has a mass of 0.42kg, what is the acceleration of the soccer ball.
What is the acceleration due to gravity g' on the space shuttle in orbit, 200km above the surface of the earth? The gravitational constant is 6.67 x 10^-11 N*m^2/kg^2, the radius of the Earth is 6.4 x 10^6 m, the mass of the Earth is 6 x 10^24 kg, an..
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