Physics, 24.09.2021 14:00 herbal420medici
Calculate the displacement and velocity at times of (a) 0.520, (b) 1.50, (c) 1.75, and (d) 2.25 s for a ball thrown straight up with an initial velocity of 17.0 m/s. take the point of release to be yo=0
Answers: 3
Physics, 22.06.2019 15:10
Suppose that f : rn โ rm and that a โ k, where k is a connected subset of rn . suppose further that for each x โ k there exists a ฮดx > 0 such that f(x) = f(y) for all y โ bฮดx (x). prove that f is constant on k; that is, f(x) = f(a) for all x โ k
Answers: 1
Physics, 22.06.2019 19:30
If the area of a square has increased by a factor of 16, by how much has each side increased?
Answers: 3
Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 ร 10-6 ฯยทm. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ยข per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to itโs resistivity when at operating temperature? explain.
Answers: 3
Physics, 22.06.2019 21:10
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius ํ
=0.381meters and mass ํ=3.1ํํ. initially ํ"is on the ground and ํ#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of ํ#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
Calculate the displacement and velocity at times of (a) 0.520, (b) 1.50, (c) 1.75, and (d) 2.25 s fo...
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08
Mathematics, 24.03.2020 00:08