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Topic of essay is : The effect of friction on fluid flow in pipes with different shapes.
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a person who weighs 800 N is squatting on a scale. Suddenly he stars jumping, extending his legs as quickly as possible, so that he can ump into the air. as the person is in the process of jumping (accelerating upward) the reading of the scale is ..
A heat engine operates between a high-temperature reservoir at670K and a low-temperature reservoir at 320 K. What is the magnitude of the net change in entropy as a result of this cycle
What is the coefficient of performance of a refrigerator that operates with Carnot efficiency between temperatures -3.00°C and +30.00°C
The position of a particle is given by x = 3.5 cos ?t, where x is in meters and t is in seconds. Find the maximum speed and maximum acceleration of the particle
A 150? resistor is across a 24.0V battery. Find the energy supplied by the battery in 4min
A rectangle has an area of 33.66 cm2. When both the length and width of the rectangle are increased by 1.30 cm, find the length of the shorter of the two sides of the initial rectangle
The radius of a park merry-go-round is 2.4 m. To start it rotating, you wrap a rope around it and pull with a force of 260 N for 11 s. What is the moment of inertia of the merry-go-round
Light of a certain frequency has a wavelength of 442 nm in water. The index of refraction of water for this light is 1.333. What is the wavelength of this light in benzene
Monochromatic light (λ = 570 nm) passes during two slits and onto a screen 4.0 m away. If two nearby bright fringes are separated with 14 mm, what is the slit pacing?
a sprinter accelerates uniformly from rest to a speed of 9ms while traveling 18m.a what was thier acceleration?b what
Hooke's law describes a certain light spring of unstretched length 33.0cm. When one end is attached to the top of a door frame, and a 6.4kg object is hung from the other end, the length of the spring is 48cm.
7 an x-ray tube is operating with energy of 16 keV the produced x-rays photon strike a target and are compton-scattered at an angle of 45 degrees, what is the energy of the scattered x-ray photon in ev
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