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A frictionless stick of mass m and length L lies at rest on a frictionless horizontal table. A mass km (where k is some number) moves with speed v0 at a 45 degree angle to the stick and collides elastically with it very close to an end. What should k be so that the mass ends up moving in the y-direction?
a point charge has a charge of -7.00 micro c. estimate the strength and direction of the electric field at a distance
A skier traveling 11.2 m/s reaches the foot of a steady upward 15.8° incline and glides 10.9 m up along this slope before coming to rest
Light is emitted from an ordinary lightbulb filament inwave-train bursts about 10^-8s in duration. What is the length in space of such wave trains
Blue whales apparently communicate with each other using sound of frequency 17.0, What is the wavelength of such a sound in seawater
Displacement vector A points due east and has a magnitude of 3.22 km. Displacement vector B points due north and has a magnitude of 7.44 km. Displacement vecto Cr points due west and has a magnitude of 7.88 km.
Christy has a grandfather clock with a pendulum that is 1.000 m long. If the pendulum is modeled as a simple pendulum, what would be the period
two semicircular arcs have radii R2 = 6.60 cm and R1 = 2.45 cm, carry current i = 0.281 A, and share the same center of curvature C. Calculating the Magnetic Field Due to a Current
Find the force exerted by reflecting sunlight off a reflecting aluminum sheet in space if the area normal to the sunlight is 5000 m^2 and the solar intensity is 2500 W/m^2
what is the average age of a bone that has 85 beta emissions per minute from a 20 g of carbon found in that fossil. half life time of carbon-14 is 5730 years
The component prisms are 70-20-90 degrees. the angle between the emerging right and left polarized rays
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s, A physics-110 student needs 500 W of Power to climb two flights of staris to get to the physics class room in 40 s
X rays diffract from a crystal in which the spacing between atomic planes is 0.179nm. What is the angle of the first-order diffraction
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