What are 2 examples of force? There are many examples of forces in our everyday lives: weight force (i.e. the weight of something) the force of a bat on the ball. the force of the hair brush on hair when it is being brushed. the force of your foot pushing on the pedal when you […]
Does closing vents downstairs help cool upstairs?
What happens to the stars when two galaxies collide?
What happens to the stars when two galaxies collide? When you’re wondering what happens when two galaxies collide, try not to think of objects smashing into each other or violent crashes. Instead, as galaxies collide, new stars are formed as gasses combine, both galaxies lose their shape, and the two galaxies create a new supergalaxy […]
What is the activation energy for a chemical reaction quizlet?
What is the activation energy for a chemical reaction quizlet? Activation energy is the energy required to break existing bonds, and form new bonds. If a collision occurs with more energy than the activation energy, the reaction will occur. What does the activation energy for a chemical reaction represent quizlet? Activation energy is the minimum […]
What are 3 ways to increase buoyancy?
What are 3 ways to increase buoyancy? So, one way to increase the buoyancy would be to reduce the object’s mass and subsequently reduce its weight. The buoyant force itself is directly related to the weight of the fluid displaced by the object…. the density of the fluid, the volume of the fluid displaced, and. […]
Is energy exchanged between your system the device and its surroundings?
Is energy exchanged between your system the device and its surroundings? Yes there is energy exchanged between my system.2.Is matter exchanged between your system (the device) and its surroundings? The law of conservation of energy is the total energy of an isolated system that remains constant. This law means that energy can be created nor […]
What is needed for evaporation process?
What is needed for evaporation process? Answer: Heat (energy) is necessary for evaporation to occur. Energy is used to break the bonds that hold water molecules together, which is why water easily evaporates at the boiling point (212° F, 100° C) but evaporates much more slowly at the freezing point. What is a good example […]
What is the net charge of a parallel plate capacitor?
What is difference between physical change and chemical change?
What is difference between physical change and chemical change? Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. What are 3 similarities between physical and chemical changes? Both: They both invlove changes in the state […]
Why does sodium only have 1 valence electron?
Why does sodium only have 1 valence electron? Sodium has one valence electron. The element has a full innermost electron shell of two electrons and a full shell of eight electrons in the next shell. The third shell, which is the outermost and the valence shell, has only one electron. Valence electrons influence chemical reactivity. […]