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The eye is most sensitive to light having a frequency of 5.45 1014 Hz, which is in the green–yellow region of the visible electromagnetic spectrum. What is the wavelength of this light? m
A 2.65 block is pushed 1.69m up a vertical wall with a constant speed by a constant force of magnitude F applied at angle 55.4 degrees with the horizontal. g= 9.8 m/s2. If the coefficient of kinetic friction between the block & wall is 0.54, Calcu..
n = 3.24 mol of Hydrogen gas is initially at T = 357 K temperature and pi = 2.79×105 Pa pressure. The gas is then reversibly and isothermally compressed until its pressure reaches pf = 7.62×105 Pa. How much work did the external force perform
If a lab student determines the coeffient of linear expansion of aluminum is 26.4 x 10-6, what is that student's percent error for the experiment
Spiderman's webbing has a cross sectional area of A = 10^-6 m^2. The Young's modulus of the silk is Y = 200 x 10^10 Pa, and has a breaking strength of 1 x 10^9 Pa. How far will it have stretched before breaking
A simple pendulum has a mass of 0.250 kg and a length of 6.00 m. It is displaced through an angle of 14.0° and then released. What is the maximum restoring force
What is the friction force that acts on the firefighter?
A coin rests 14.60 cm from the center of turntable. The coefficient of static friction between the coin and turntable surface is 0.350. The turntable starts from rest at t = 0 and rotates with the constant angular acceleration of 0.8400 rad/s2.
A 4.29-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box, Determine the kinetic frictional force that acts on the box
What would be the equilibrium temperature when a 227 block of copper at 265 is placed in a 155 aluminium calorimeter cup containing 844 of water at 14.50.
The Earth is about to be swallowed by a black hole with the mass equal to ten Solar masses. At what distance from the black hole will the Earth be pulled apart by tidal forces - i.e. find the Roche limit for this system.
The tension in a steel wire of 2.7m long and 1.0 cm in diameter (p = 7800 kg / m ^ 3) is 840 N. What is the fundamental frequency of vibration of the cable
A rocket is fired straight upward from rest with an acceleratrion of 5 m/s^2. It maintains acceleration until it is 1300 m above the ground, What is the Rocket's velocity, Find the total amound of time the rocket is in the air
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