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A 10.0 kg uniform ladder that is 2.50 m long is placed against a smooth vertical wall and reaches to a height of 2.10 m, as shown in the figure. The base of the ladder rests on a rough horizontal floor whose coefficient of static friction with the ladder is 0.800. An 80.0 kg bucket of concrete is suspended from the top rung of the ladder, right next to the wall, as shown in the figure. What is the magnitude of the friction force that the floor exerts on the ladder?
A positive charge Q1 = 3.00 µC is in the origin and a negative charge Q2 = -5.00 µC is at point x = 11m. Find the position of point P between the charges, where the electric potential equals zero.
A man shoots at a leopard approaching him with a velocity of 10m/s he shoots bullets to stop the attack from the leopard with initial velocity of bullet as 900m/s with mass of one bullet as 0.6kg
a glass rod with a refractive index of 1.55 is ground and polished at both ends to hemispherical surfaces with radii of
a 2.9-kg cart is rolling along a frictionless horizontal track towards a 1.6-kg cart that is held initially at rest.
Given: G = 6.67259 × 10?11 Nm2/kg2 A small Moon of a planet has an orbital period of 0.714 days and an orbital radius of 3.63 × 105 km. From these data, determine the mass of the planet.
A rod has a linear density ? = 3x, where x is the distance along the rod, What is the coordinate of the center of mass of the rod
a. What is the molecular diffusion coefficient of water vapor in air at 30 °C and 1.0 atm inside the pore? Can the diffusion be considered as a pure Knudsen diffusion? Knudsen diffusion can be assumed negligible when Kn
A closely wound circular coil with a diameter of 3.60 cm has 560 turnsand carries a current of 0.560 A. What is the magnitude of the magnetic fieldat the center of the coil?
question1a hollow sphere of radius 0.15 m with rotational inertia 1 0.040 kgm2 about a line through its center of mass
The fire department decides to use the burning books to heat water
A radio signal with a wavelength of 1.2 x10-4 m is sent to a distance asteroid, How far from Earth is the asteroid
Unpolarized light of intensity I_0 is incident on a stack of 7 polarizing filters, each with its axis rotated 15 (degrees) cw with respect to the previous filter. What light intensity emerges from the last filter
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