Calculate the de Broglie wavelength of an electron having a kinetic energy of 1000 eV. Compare the result with the wavelength of x-rays having the same energy.

Q: A circular swimming pool has a diameter of 24 ft, the sides are 5 ft high, and the depth of the…

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Q: pump is required to raise 600 litres of fresh water a vertical distance of 120m. If the efficiency…

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Q: What are the qualities of an ideal source of energy?

A: The main  qualities of ideal source of energy includes, Must have the ability of transferring an…

Q: What is one advantage of using pneumatic power over hydraulic power?

A: The pneumatic power system has a lighter weight whereas the hydraulic power system has a heavier…

Q: A spring has a natural length of 20 cccc. If a 25 NN force is required to keep it stretched to a…

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Q: A truck traveling four times as fast as a slower moving identical truck has how much more KE?

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Q: A bowling ball has a mass of 10kg and is at a height of 5 meters What is its GPE and KE at the top

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Q: when is a person ready to lead?

A: Stepping into a leadership role means taking on new responsibilities and setting an example for your…

Q: What provides the lift to keep a Frisbee in flight?

A: The structure/shape of the regular frisbee is similar to the aircraft wing. The structure of the…

Q: calculate the amount of work done is raising a glass of water of mass o.4 kg to a height of 10 cm

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Q: What is the advantage of a wooden roller coaster over a steel?

A: Advantages of wooden roller coaster over steel

Q: Calculate the work done by a force of 41 Newtons that moves a box through a displacement of 26…

A: Given data:  Force (F) = 41 N Displacement (d) = 26 m Required: Work done (W)

Q: What kind of stored energy enables a stretched bow to shoot an arrow? gravitational potential energy…

A: Given data:  An arrow shoot from a stretched bow Required: The kind of energy stored in the…

Q: How much work is done lifting a 35 pound object from the ground to the top of a 30 foot building if…

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Q: what law do perpetual motion machines violate?

A: We know perpetual motion machines are hypothetical machines that can work infinitely without without…

Q: What is Earth's energy budget?

A: Earth's energy budget defines the balance between the radiant energy that reaches the Earth from the…

Q: ww R₁ R₂ www www R3 Part C Derive an expression for the power being dissipated in R3 for (Figure 2).…

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Q: 2. A stack of bricks with mass m=200 kg is sitting on a frictionless ramp, connected to a rope as…

A: Given that:- Mass of the stack of bricks=m=200kg

Q: How much work is required to pump out a swimming pool, if the area of the base is 800 square feet,…

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Q: A certain damn generates 120 MJ of mechanical hydroelectric energy each minute if the conversion…

A: Let us solve the problem step by step :Given that , Mechanical Energy=120 mJminChange MJsec to…

Q: If energy cost 5 cents per kilowatt-hour, how much is one horsepower-hour worth?

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Q: What is the power of a blender that uses 1000 J in 5 s?

A: Given: The amount of energy used is 1000 J. The time duration is 5 s. Introduction: The rate of…