Physics, 31.08.2019 01:30 jjaerere6609
How much energy, in joules, is released when 17 kilograms of granite is cooled from 45°c to 21°c?
a. 785,662.8 j
b. 901,980.3 j
c. 365,575.3 j
d. 327,992.8 j
Answers: 2
Physics, 21.06.2019 22:30, dawood7068
Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane
Answers: 1
Physics, 21.06.2019 23:10, khush77
Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net
Answers: 1
Physics, 22.06.2019 00:20, pooperjooper
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
How much energy, in joules, is released when 17 kilograms of granite is cooled from 45°c to 21°c? <...
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