Physics, 28.07.2019 23:00 kimjooin02
Jayden was given a marshmallow and a syringe in class to experiment with. she placed the marshmallow in the syringe and sealed the end. when she depressed the plunger of the syringe what happened to the marshmallow and why? a) the increased pressure, pushed the molecules closer together, and caused the marshmallow to shrink. b) the decreased pressure, pushed the molecules closer together, and caused the marshmallow to shrink. c) the increased pressure, allowed the molecules to spread apart, and caused the marshmallow to grow larger. d) the decreased pressure, allowed the molecules to spread apart, and caused the marshmallow to grow larger.
Answers: 2
Physics, 22.06.2019 10:00
There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.
Answers: 1
Physics, 22.06.2019 10:30
Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.
Answers: 3
Physics, 22.06.2019 11:50
The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e
Answers: 1
Physics, 22.06.2019 14:20
A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.
Answers: 3
Jayden was given a marshmallow and a syringe in class to experiment with. she placed the marshmallow...
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