Imagine that you have collided carts on an air-track to investigate conservation of momentum. your results show that momentum after a collision is usually a little less than the momentum before. which statement best explains your observation?
none of the listed answers are correct
the carts did not have enough mass.
momentum changed slightly due to friction.
kinetic energy was converted to gravitational potential energy.
the collisions were not perfectly elastic.
Answers: 3
Physics, 22.06.2019 03:30, itsRyanPlayzMC9660
Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.
Answers: 1
Physics, 22.06.2019 10:00, mathscience9301
Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.
Answers: 2
Physics, 22.06.2019 12:00, P4thing
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
Physics, 22.06.2019 17:00, nathanb126
The force it would take to accelerate an 900-kg car at the rate of 6m/s2
Answers: 1
Imagine that you have collided carts on an air-track to investigate conservation of momentum. your r...
Mathematics, 25.08.2021 19:10
Mathematics, 25.08.2021 19:10
Chemistry, 25.08.2021 19:20
Mathematics, 25.08.2021 19:20