How long is beam if balances when fulcrum is placed
A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0-kg, and a 40.0-kg child sits on the other end. The beam balances when a fulcrum is placed below the beam a distance 1.10-m from the 30.0-kg child. How long is the beam?
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Suppose a baseball player had 243 hits in a season. In the given probability distribution, the random variable X represents the number of hits the player obtained in a game.
You dissolve 15.71 g of NH4NO3 in 150 mL of solution (callthis solution A). You take 20 mL of Solution A and add water untilthe total volume is 75.0 mL (call this Solution B). You take 15.0mL of solution B and add 25.0 mL of water to it (call this
Calculate the collection efficiency of this system for 12.0 μm particles. Suppose you wish to clean an aerosol stream containing unit density particles which are log-normally distributed.
Two identical point charges (q = +5.40 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.510 m. A test charge (q0 = -4.50 x 10-8 C), with a mass of 9.60 x 10-8 kg, is released from rest at one of the corners of the s
A 40.0-kg child sits on the other end. The beam balances when a fulcrum is placed below the beam a distance 1.10-m from the 30.0-kg child. How long is the beam?
Heat is added to 3kg of wet steam( a mixture of saturated liquid and saturated steam) contained in an isobaric ( constantpressure) system.
(a) How much work is done by the recharger? (b) If electricity costs you 9.0 cents per kWh, how much does one recharge cost you?
A 5.0 kg Steel block is resting on a *horizontal table*. The coefficient of static friction (us) is 0.75 and the uk is 0.57. What minimum force is needed to start this block moving?
Calculate the amplitude at point on the string a distance of 25.0 from the left-hand end of the string.
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: The National Council for the Social Studies (NCSS) outlines a developmental sequence for social studies-the youngest children learn about their neighborhood
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