Physics, 25.02.2021 22:10 ghadeeraljelawy
Claudia uses 100 N of force on a rope attached to a pulley to lift an anvil that weighs 400 N. What is the Mechanical Advantage of the pulley?
Answers: 3
Physics, 22.06.2019 07:30
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
Answers: 1
Physics, 22.06.2019 20:20
The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 ā t2)k (iv) r (t) = 2t j + (50 ā t2)k (v) r (t) = (50 ā 2t) i + 2t j + (50 ā t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?
Answers: 2
Physics, 23.06.2019 00:30
Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero
Answers: 3
Claudia uses 100 N of force on a rope attached to a pulley to lift an anvil that weighs 400 N. What...
English, 17.12.2020 22:00
Biology, 17.12.2020 22:00
Chemistry, 17.12.2020 22:00
Mathematics, 17.12.2020 22:00
Mathematics, 17.12.2020 22:00
Chemistry, 17.12.2020 22:00
Mathematics, 17.12.2020 22:00
Business, 17.12.2020 22:00
Mathematics, 17.12.2020 22:00
English, 17.12.2020 22:00
Mathematics, 17.12.2020 22:00
Mathematics, 17.12.2020 22:00
Biology, 17.12.2020 22:00