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Doug exerts a 4.60 kg crate up a 1.70-m-high 20 ^\circ frictionless slope by pushing it with the constant horizontal force of 28.0 N. Determine the speed of the crate as it reaches the top of the sl
Carol has 2400 feet of fencing to fence in the rectangular corral. Determine the expression which represents length and width of corral in terms of its width x.
Employ work and energy to determine the suitcase's coefficient of kinetic friction on the floor.
A pendulum is prepared by tying a 590 g ball to a 47.0 cm-long string. The pendulum is pulled 22.0^\circ to one side, then free. Determine the ball's speed at the lowest point of its trajectory? To
A block of 2.00 kg is held in equilibrium on an incline of angle 60 degrees through a horizontal force F applied in the horizontal direction. When the coefficient of static friction among block and
A candle is positioned 22.36 cm in front of the convex mirror. If the convex mirror is substituted with a plane mirror, the image moves 7.0 cm farther away from the mirror. Determine the focal lengt
Each and every engine extracts the similar amount of energy per cycle from the high-temperature reservoir. Rank the magnitudes of the work-done by the engines per cycle, maximum first.
Determine model that expenses revenue R as the function of price p. (Note that R = zp, unit price times number of units sold) b) Find optimal price, what unit price maximizes revenue? Compute the ma
Determine the ratio of the number of molecules at the surface of earth to the number at height h with a potential mgh?
The near-point of an eye is 55 cm. The corrective lens is to be worn to let this eye to clearly focus on objects 25 cm in front of it. i) What must be the focal length of the lens? ii) Determine the
The Yerkes refracting telescope consists of a 1 m diameter objective lens of focal length 20 m. Suppose it is used with an eyepiece of focal length 2.84 cm. Determine the angular magnification of th
Number N of bacteria present in the culture at time t, in hours, obeys law exponential growth N(t) = 500e^0.02t a) How many bacteria are present at t = 0 hours? b) When will number of bacteria trip
If the person wishes to switch to contact lenses that are placed directly on the eyes, then what lens power must be prescribed?
Find out the diffusion coefficient for glycerin in water by using the given observations: glycerin diffuses all along a horizontal, water-filled column which has a cross-sectional area of 2.0cm^2. T
The distortion of the crustal plates of Earth is an instance of shear on a large scale. A particular crustal rock consists of a shear modulus of 1.0 1010 Pa. What shear stress is included when a 9.0
A wire consists of a resistance of 60.0 ohms, and is bent to a square loop with sides of length 15.0 cm. The loop is perpendicular to the magnetic field that is changing at a rate of 3.000e-3 T/s. F
Bone consists of a Young's modulus of around 1.80 x 1010 Pa. Under compression, it can withstand a stress of around 1.55 x 108 Pa before breaking. Suppose that a femur (thigh-bone) is 0.60 m long, a
Determine the velocity of the ball just before it collides with the 1.0kg block? (Should use work-energy theorem to explain)
Width of ellipse will be 5 feet across and its maximum height along center will be 3 feet. Company wishes to place two bright spots at foci of ellipse. How far from center of ellipse will spots be s
If Mk is 0.06, compute the final velocity of a particle which begins from rest at the top of the plane and ends at the bottom.
Is the magnitude of cart A of final momentum greater, less than, or equivalent to the magnitude of the final momentum of cart B? Describe.
Write the function as the piecewise defined function which does not use absolute value. Find intervals (x-values) on which the function is increasing or decreasing.
Throughout this time, will the marble spin in the horizontal circle, at constant height, or will it spiral down within the tube? Verify your answer. Take coefficient of static friction to be 0.8.
A cylinder of 3.0 kg, 14 cm radius, primarily at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped about it and pulled with a force of 18 N. (i) Determine
Find out the energy needed to accelerate an electron between each of the given speeds. (i) 0.500c to 0.875c (ii) 0.875c to 0.975c