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A mass of 6 kg lies on a horizontal, frictionless floor. A force of 85 Newtons pushes to the left (negative x direction) with a force of 85 Newtons. Another force of unknown magnitude pushes the mass in a direction of 27.8 degrees above the positive x axis. The mass is originally at rest before these forces are applied and 2.3 seconds after the forces have been applied, the mass has moved to the left a distance of 13.4 meters. What is the magnitude of the unknown force in Newtons?
When 5.0 g of steam at 100.C is added to some water at 20 C inside an insulated container, the final temperature of all the water is 40 C. What was the mass of the water at the beginning
A challenge gaining prominence throughout the planet is the increased need for \"green\" or sustainable energy. how much energy does the wind turbine generate
Neal (75 kg), a beginning skier, gets a little too ambitious and loses control on the slope. What is their speed immediately after the collision
A disc undergoes 30 revolutions as it accelerates uniformly from rest to 5 rev/sec. What's the angular acceleration of the disk
Your temperature is 98.4 degrees fahrenheit. what is the wavelength corresponding to the largest intensity
A railroad car of mass 2.3 104 kg moving at 5.00 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
A sprinter crosses the finish line of a race. The roar of the crowd in front approaches her at a speed of 351 m/s. What is the sprinter's speed
Consider two masses m1 and m2 at the top of two frictionless inclined planes. Both masses start from rest at the same height. However, the plane on which m1 site is at an angle of 30 degrees with the horizontal,
q1. how much would an 80.0 kg person weight a on mars where an acceleration of gravity is 3.93 ms2 and b on earths moon
The temperature of a silver bar rises by 10.0°C when it absorbs 1.23 kJ of energy by heat is 525 grams. determine the specific heat of silver
Obtain grand mean and unadjusted means for the ANCOVA model where covariate, "xc", Treatment, "a", response, "y" are considered and calculate adjusted means given the estimates
A simple pendulum, 2.0 m in length, is released with a push when the support string is at an angle of 25° from the vertical. what is its speed at the bottom of the swing
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