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You push horizontally a textbook placed on a desk with a 15° incline and the book slides upward. How would you apply Newton's laws to determine the velocity and acceleration of the book?
A car initially travelling at 25.90 m/s undergoes a constant negative acceleration of magnitude 1.60 m/s2 after it brakes are applied. How many revolutions does each tire make before the car comes to a stop, assume the car does not skid and the ti..
A playground merry-go-round has a radius of 4.20m and a moment of inertia of 255kg m2 and turns with negligible friction about a vertical axle through its center. What is the average power supplied by the child
Knowing that the amplitude of the motion of the element at that speed is 15 mm and that the total mass of the system is 140 kg,
A huge cannon is assembled on an airless planet. The planet has a radius of 6.00×106 m and a mass of 2.09×1024 kg. What height does the projectile reach above the surface
A bartender slides a beer mug at 1.5 m/s towards a customer at the end of a frictionless bar that is 1.2m tall. how far way from the end of the bar does the mug hit
A sealed container of volume 0.10 m3 holds a sample of 3.0 × 1024 atoms of helium gas in equilibrium. What is the average kinetic energy of the helium atoms
A projectile is fired from ground level at time t=0, at an angle θ with respect to the horizontal. Find the time it takes the projectile to reach its maximum height H
2 isolated charges +q and -2q are 2 cm apart. if F is the magnitude of the force acting on charge -2q. What are the magnitude and direction of the force acting on charge +q
As the sun rises over a still pond, an angle will be reached where its image seen on the water's surface (n(subw)=1.333) will be completely polarized in a plane parallel to the surface. What is the angle between the reflected and refracted beams
How does culture fit into Wilson's argument about persistent urban poverty? Can you draw on Patillo's Black Picket Fences that considers his argument and explain how it applies?
an electron and a proton are initially very far apart effectively an infinite distance apart. they are then brought
You have a lens whose focal length is 12.7 cm. You place an object on the axis of the lens at a distance of 6.25 cm from it. How far is the object\'s image from the lens
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