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A uniform beam 3m long has weights 20N and 30N attached to itsends. If the weight of the beam is 50N find the point on the beamwhere a support should be placed so that the beam will resthorizontally.
Suppose you measure a cylinder and determine that the radius is 0.52 + 0.01 cm and its height is 3.20 + 0.15 cm. What is the standard error of the volume
a force is dependent on position and is given by 4.00 nmxi 2.0 nm2xyj . an object begins at the origin. it first moves
In the van der Waals equation of state, the constant brepresents the amount of "unavailable volume" occupied by themolecules them selves. Estimate the diameterof a molecule of this gas
A wave has an angular frequency of 190 rad/s and a wavelength of 2.6 m. Calculate (a) the angular wave number and (b) the speed of the wave.
Charge Q = 10E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge. A) Find the potential difference VB - VA between the two points. B) Which point is at the higher potential? Type either "Po..
An unpolarized laser has an average power of .6 mW. At a distance of 10 m it forms a circle with a diameter of 2 mm. Intensity = 5.23 x 10^-4. Erms= .444 v/m. what is the speed of light in the polarizer
A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.75 of her regular weight. Calclate the acceleration of the elevator
Initially, an object is 12cm to the left of a convex lens of focal length 8.2cm, then a concave (diverging) lens of local length -9cm is placed 20cm to the right of the convex lens, find the Image distance from concave lens
The blood flow rate through the aorta is typically 97 cm3/s, and a typical adult has about 5.2 liters of blood, what is the speed of blood as it flows through the aorta
The radius of curvature of the curved side of a plano-convex lens made of glass (n=1.64) is 33cm
A physics student propses to pull their car out of a mudhole on a country road by stretching a rope between the front of the car and an immovable object in front of the car, and then push sideways at the midpoint of the rope.
The angles with respect to the vertical are Q=10.5°, and T=23.5°. State if true, false, or can not tell. The mass of W can be less than that of Z. The charge on W can be positive and that on Z negative.
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