1.which of the following is an example of a second-class lever?
wheelbarrow
broom...
Physics, 05.12.2019 07:31 saucyyyyniahhhhh
1.which of the following is an example of a second-class lever?
wheelbarrow
broom
crowbar
shovel
2.which of the following is an example of a first-class lever?
rake
nut cracker
seesaw
elbow joint
Answers: 2
Physics, 22.06.2019 04:40
How is the gravitational force related to the distance between two objects?
Answers: 1
Physics, 22.06.2019 07:00
How do you tell if someone actually cares about you? and just say they do?
Answers: 2
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
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 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − 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
Biology, 11.10.2020 03:01
History, 11.10.2020 03:01
History, 11.10.2020 03:01
Chemistry, 11.10.2020 03:01
Mathematics, 11.10.2020 03:01
Mathematics, 11.10.2020 03:01
Mathematics, 11.10.2020 03:01
Mathematics, 11.10.2020 03:01
Mathematics, 11.10.2020 03:01
Biology, 11.10.2020 03:01