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Suppose a stone is thrown upward with an initial velocity of 44 ft per second and is released 4 ft above the ground. Its height "h" in feet after "t" seconds is given by h(t)= -16t^2 + 44t + 4. a) When does the stome reach a height of 32 ft?
After how many seconds does the stome reach it maximum height and what is the height?
A block of mass 4 kg is compressing a spring with K=2500 N/m a distance of 0.3 m. How much work does the spring do on the block
In order better to map the surface features of the Moon, Calculate the satellite's kinetic energy, gravitational potential energy, and total orbital energy
A 100 ball of clay is thrown horizontally with a speed of 9m/s toward a 900 block resting on a frictionless surface. It hits the block and sticks. The clay exerts a constant force on the block during the 7 ms it takes the clay to come to a rest re..
A 500kg cart is rolling to the right at 3.70m/s. What is the speed of the cart if the man suddenly starts running to the left with a speed of 8.00 m/s relative to the cart
The lengths of the three telescopes are LA = 456 mm, LB = 640 mm, and LC = 787 mm. The focal length of the eyepieces is 3.00 mm
Three resistors, 27, 49, and 79 , are connected in series, and a 0.55 A current passes through them. What is the potential difference across the three resistors
Light from a sodium vapor lamp passes through a filter that blocks all but a single narrow wavelength band. It then fallson two slits separated by 0.460mm. The resulting interferencepattern on a screen 2.20 meters away has adjacent bright fringes ..
Light with a photon energy of 4.5 eV impinges on the surface of a material with work function 0.4 eV to eject electrons
Consider Joule's experiment described in the insight below. Assume the mass m = 2.2 kg and the fluid is water with a volume of 0.75 L. What is the increase in the temperature of the water
You drop a 0.490 kg block of copper from a height of 2.90 m. by how much does the temperature of the copper increase
q1. to push a 47.0-kg crate up a frictionless incline angled at 34.0deg to the horizontal a worker exerts a force of
"Specifically, they must have complementary polarizations. For example, if photon A is later measured to have horizontal (0 degrees) polarization, then the other photon must "collapse" into the complementary state of vertical (90 degrees) polariza..
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