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A 7.05-kg box is pulled up a ramp that is inclined at an angle of 35 degrees with respect to the horizontal, as shown below. The coefficient of kinetic friction between the box and the ramp is 0.115, and the rope pulling the box is parallel to the ramp. If the box accelerates ip the ramp at a rate of 2.09 m/s2, what must the tension FT in the rope be? Use g=9.81 m/s2 for the acceleration due to gravity.
Two polarizers are out of alignment by 24.1°. If light of intensity 1.00 W/m2 and initially polarized halfway between the polarizing angles of the two filters passes through the two filters
Can the atoms in a liquid helium at 4K (interatomic distance about 0.1 nanometer) be adequately represented by nonspreading wave packets, so that their motion can be described classically.
question 2.25 moles of n2 in a state define t1 300 k and vi 1.00l undergoes an isothermal reversible expansion until
A ray of light passes from air during dense flint glass and then back into air. The angle of incidence on the first glass surface is 80.0°. The thickness of the glass is 8.00 mm; its front and back surfaces are parallel. How far is the ray displaced ..
A Train goes between three stops A,B,C in that order. From A to B the train travels 75 kilometer south and between B and C it travels 100 kilometer northwest. Evaluate the magnitude and direction of the displacement
Light of wavelength 450 nm falls on the 0.48 mm wide slit and forms a diffraction pattern on a screen 1.1 m away.
Consider the posiblity of making a LED from diamond by constructing a pn junction from a diamond doped with boron and a diamond doped with phosphorus. Estimate the wavelength of the light emitted.
A 77.0-? resistor is connected in series with a 32.0-µF capacitor and a source whose maximum voltage is 123 V, operating at 60.0 Hz. Find the capacitive reactance of the circuit
A Cassegrain astronomical telescope uses two mirrors to form the image. Compute the radius of curvature of a secondary mirror
A 6.00?kg ball is dropped from a height of 13.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg and is 6.80m in length. How high will the other ball go after the collision
Optimus Prime is flying straight up at 62m/s when he accidentally drops his mega-ray blaster and it falls85 m to the ground below.
A cube of ice is taken from the freezer at -5.7%u2218Cand placed in a 95g aluminum calorimeter filled with 305g of water at room temperature of 20.0 %u2218C, What was the mass of the ice cube
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