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The length and width of a rectangular room are measured to be3.955±0.005m3.955±0.005m size 12{3 "." "955" +- 0 "." "005"" m"} {}</annotation-xml>" role="presentation" style="display: inline; line-height: normal; font-size: 14px; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; color: rgb(85, 85, 85); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; position: relative; background-color: rgb(237, 237, 237);">3.955±0.005msize 12{3 "." "955" +- 0 "." "005"" m"} {}</annotation-xml> and3.050±0.005m3.050±0.005 m size 12{3 "." "050" +- 0 "." "005"" m"} {}</annotation-xml>" role="presentation" style="display: inline; line-height: normal; font-size: 14px; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; color: rgb(85, 85, 85); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; position: relative; background-color: rgb(237, 237, 237);">3.050±0.005msize 12{3 "." "050" +- 0 "." "005"" m"} {}</annotation-xml>. Calculate the area of the room and its uncertainty in square meters.
A football kicker can give the ball an initial speed of 27 m/s. He is 48 m from the goalpost which has a crossbar 2.72 m high. What is the smallest angle of elevation that he can kick the football and score a field goal
A 120 V potential difference is applied to a space heater whose resistance is 16 Ω when hot. (a) At what rateis electrical energy transferred to thermal energy?(b) What is the cost in cents for 5.3 h at US5.0¢/kW·h?
A thin uniform rod of mass 400 g and length 60.0 cm is suspended from a pivot and is free to rotate about it in any direction. A bullet strikes the rod at a distance of 46.0 cm from the pivot and gets stuck in it. The bullet was initially moving a..
Steam to drive an old-fashioned steam locomotive is supplied at a constant gauge pressure of 1.75 x 10^6 N/m^2 (about 250 psi) to a piston with a 0.200-m radius. By calculating P*ΔV, find the work done by the steam when the piston moves 0.800 m. N..
Suppose you stir 1 kg of water until its temperatue raises by 1 degree C. How much work did you do on the water
An electron with a speed of 3.55·E5 m/s enters a uniform mangetic field of magnitude 0.0397 T at an angle of 34.5° to the magnetic field lines, Determine the radius of the helical path
A straight horizontal pipe with a diameter of 1.0 cm and a length of 53 m carries oil with a coefficient of viscosity of 0.11 N · s/m2. Find the gauge pressure at the pipe input
a research submarine has 20-cm-diameter window at 8.0 cm thick. the window is supposed to withstand a force of 1.0 x
A hunter aims directly at a target (on the same level) 96.6 m away. If the bullet leaves the gun at a speed of 181 , At what angle should the gun be aimed so as to hit the target
a proton is released from rest at the positive plate of a parallel-plate capacitor. it crosses the capacitor and
a 2.00 g plastic bead charged to -4.00 nc and a 4.00 g glass bead charged to 8.00 nc are 2.00 cm apart center to
A biologist keeps a specimen of his favourite beetle embedded in a cube of polystyrene plastic. What is the beetle's actual distance beneath the surface
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