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A 220g ball is dropped from a height of 2.5m and bounces on a hard floor. The force on the ball from the floor is shown in (Figure 1).
How high does the ball rebound?
Calculate the mass of 40K that must be inside the 54 kg body of a woman to produce this dose. Each 40K decay emits a 1.30 MeV β, if 40% of this energy is absorbed inside the body.
A car is traveling at 67.53 mph. The driver applies the brakes and the car decelerates at 5.68 m/s2. What is the stopping distance in meters
In a Young's experiment using sodium light (λ = 589 nm), the slits are 1.2 µm wide. You notice that fringes 4, 8, etc. are missing. How many fringes appear on the screen
A proton, initially traveling in the +x-direction with a speed of 5.00×105m/s, enters a uniform electric field directed vertically upward, What is the strength of the electric field
A 45.5-g golf ball is driven from the tee with an initial speed of 47.3 m/s and rises to a height of 30.4 m. evaluate the kinetic energy of the ball at its highest point
A ship's mast reaches to a height of 15 meters above the surface of a 10 meter deep lake. When the sun is 30 degrees above the horizon, how long will the shade of the mast be on the bottom of the lake?
A glass wedge is constructed to vary smoothly in thickness from zero to t = 0.200mm. What is the refractive index of the wedge
Light of wavelength 530 nm is incident normally on a diffraction grating. Two adjacent maxima occur at angles given by sinθ = 0.2 and sinθ = 0.3, respectively. What is the separation between adjacent slits
In the figure, a point charge 1.3μ C is adistance d/2 directly above the center of a square of side d = 0.26cm . What is the magnitude of the electric flux through the square? (
perform the following experiment the purpose of this experiment is to use a compass to detect the weak magnetic field
A particular heat engine has a mechanical power output of4.80kW and an efficiency of26.0%. The engine expels8.90103J of exhaust energy in each cycle. Find the energy taken in during each cycle.
A driver travels 10 km east, 20 km north and 50 km in a direction 30 degrees south of west. What is the drivers average velocity if the trip takes 90 minutes
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