Physics, 20.12.2019 19:31, Xavitheking2542
Asteel rod with a length of l = 1.55 m and a cross section of a = 4.45 cm2 is held fixed at the end points of the rod. what is the size of the force developing inside the steel rod when its temperature is raised by ∆t = 37.0 k? the coefficient of linear expansion for steel is α = 1.17×10-5 1/k, and the young modulus of steel is e = 200.0 gpa.
Answers: 3
Physics, 22.06.2019 13:30, kuddlebugsmommy
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
Physics, 22.06.2019 20:40, mathman783
Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.
Answers: 1
Physics, 22.06.2019 22:30, livichavezp2kcd3
Which of these activities increases the amount of carbon in the atmosphere?
Answers: 1
Asteel rod with a length of l = 1.55 m and a cross section of a = 4.45 cm2 is held fixed at the end...
Mathematics, 30.03.2021 19:30
Mathematics, 30.03.2021 19:30
Chemistry, 30.03.2021 19:30
Mathematics, 30.03.2021 19:30