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Assume that while pecking on a tree the woodpecker's head comes to a stop from an initial velocity of 0.7 m/s over a distance of 0.003 m. Evaluate the magnitude of the corresponding deceleration in units of the acceleration due to gravity g. What is the stopping time?
A slender rod with a length of 0.300m rotates with an angular speed of 8.80rad/s about an axis through one end and perpendicular to the rod. What is the induced emf in the rod
Two cars travel in the same direction along a straight highway, How far must the faster car travel before it has a 15-min lead on the slower car
Your nephew swings a rock around his head on a massless string. If the string is 1.5 m long and is 12?degrees from the vertical, what is the period of the rock
A white billiard ball with mass mw = 1.43 kg is moving directly to the right with a speed of v = 3.42 m/s and collides elastically with a black billiard ball with the same mass mb = 1.43 kg that is initially at rest.
A concave mirror is to form an image of the filament of a headlight lamp on a screen 8.00m from the mirror. To what radius of curvature should you grind the mirror
Find the force P that must be applied to a piston of area 11.10 cm2 to produce sufficient fluid pressure to support a car weighing 10,251 N by means of a column of fluid of cross sectional area 260 cm2, How far must the smaller piston move in order..
A projectile is launched with an initial speed of 50 m/s at an angle of 35° above the horizontal, What is the projectile's velocity at the highest point of its trajectory
A man holds a double-sided spherical mirror so that he is looking directly into its convex surface, 40.8 cm from his face. The magnification of the image of his face is +0.21. What will be the image distance when he reverses the mirror (looking in..
A tsunami is generated by an earthquake off the coast of Alaska. It has a wavelength of 677 km. It travels at a distance of 3536 km in a period of 5.49 hr. What is the frequency of the wave in Hz?
(a) How much does a 70.0 kg person weigh on the Earth? (b) How much would she weigh on the Moon (gmoon = 0.166g)? (c) How much would she weigh on a neutron star where gstar = 1.43×1011g?
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale
Water flows at 5.0;{rm L}/{rm s} through a horizontal pipe that narrows smoothly from 10 cm diameter to 5.0 cm diameter. A pressure gauge in the narrow section reads 50 kPa. What does the other pressure gauge read.
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