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A bird sees a fish below the surface of a lake. It dives in a straight line at 45.0 degree in order to catch the fish. The bird's diving speed is fast enough that it continues to move in approximately a straight line while in the water.
a. If the fish is 3.00 m below the surface of the lake, what is the horizontal distance d that the bird misses catching the fish?
b. Based on your work to answer part (a), why would evolution tend to favor birds that dive straight down (angle = 0 degree) to catch fish in the water?
A 5.6 MeV (kinetic energy) proton enters a 0.16 T field, in a plane perpendicular to the field. Evaluate what is the radius of its path
A battery with an emf of 12.0 Volt shows a terminal voltage of 11.82 Volt when operating in a circuit with three 9.3 W light bulbs connected in parallel with it. Find the battery internal resistance in units of ohms
How much thermal power is radiated by a light bulb when its filament is heated to 2000°C? Assume that the filament is a blackbody of area 1.0 cm2
Location C is 0.02 meter from a small sphere that has a charge of 4 nC uniformly distributed on its surface. Location D is 0.06 meter from the sphere. Obtain the change in potential along a path C to D
A balloon is filled with 5.45 liters of helium at a pressure of 1.35 atm and a temperature of 24.0° C. Discover the mass of the helium. Discover the buoyant force on the balloon if it is placed in the atmosphere with air pressure at 1.00 atm and temp..
Two isotopes of a certain element have binding energies that differ by 4.7540 MeV. The isotope with the larger binding energy contains one more neutron than the other isotope. Find the difference in atomic mass between the two isotopes
two particles, each with mass m = 0.95 kg, are fastened to each other, and to a rotation axis at O, by two thin rods, each with length d = 5.8 cm and mass M = 1.4 kg. what is the combination's kinetic energy
A spring is hung from the ceiling. A 0.459 -kg block is then attached to the free end of the spring. What is the spring constant of the spring
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light
In a centripital force experiment mass m=300 grams, attatched to a spring is revolved around a circle with a radius R=15cm. The frequency is measured to be 1.5 rev/s. What is the experimental value of Centripital force?
a parallel plate capacitor has a capacitance of 7uf when filled with a dialectric. the area of each plate is 1.5 square
Calculate the inductance of a solenoid with 275 turns if the length of the solenoid is 30 cm and its radius is 2.5 cm
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