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A 11.0 kilogram box is being pushed from the bottom to the top of a frictionless ramp. When the box is pushed at a constant velocity, the non conservative pushing force does 58.0 Joule of work. Find how much work is done by the pushing force when the box starts from rest at the bottom and reaches the top of the same ramp with a speed of 1.50 m/s?
Wnc = ______ J
Assume a rocketship in deep space moves with constant acceleration equal to 9.8 m/s2, which gives the illusion of normal gravity during the flight. Estimate the time required by a rocketship to attain the speed of light and the distance travelled t..
An object has a charge of -4.3 ?C. How many electrons must be removed so that the charge becomes +2.8 C?
two long parallel wires are separated by 2.5 mm. the current in one of the wires is twice the other current. if the
An MP3 player operates with a voltage of 3.7 V, and is using 0.21 W of power. Find the current being supplied by the player's battery
A 65 g ice cube at 0°C is heated until 40 gram has become water at 100°C and 25 g has become steam at 100°C. Find how much energy was added to accomplish the transformation
what parasitic forms can be seen in the blood of a patient with african sleeping sickness? filariasis?
A slit 0.240mm wide is illuminated by parallel light rays with a wavelength 540nm. What is the distance on the screen from the center of the central maximum to the first minimum
A thermos contains 150cm^3 of coffee at 85 celsius. To coolthe coffee, you drop two 11-g ice cubes into the thermos. What is the final temperature of the coffee
A piano string having a mass per unit length equal to 4.00 × 10-3 kg/m is under a tension of 1100 N. Find the speed with which a wave travels on this string.
to tighten a bolt you push with a force of 80 newtons at the end of a wrench handle that is 0.25 meters from the axis
A particle of charge q = e moves in a circle of radius = 0.42 m with speed v = 2.150×107 m/s. find the maximum torque exerted on the loop by a uniform magnetic field of magnitude B = 0.60 T
A 827 cm^3 gold nugget and a 827 cm^3 aluminum block are immersed in water. Which object experiences the greater buoyant force
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