Physics, 28.09.2021 16:10 Brainly264
Which procedure could be used to demonstrate that matter is conserved
during a physical change? *
1. Find the mass of an apple. Cut the apple and remove the core. Find the mass of the
Remaining apple.
2. Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.
3. Find the mass of a cup of water. Boil the water. Find the mass of the water that
remains.
4. Find the mass of a raw egg. Cook the egg. Find the mass of the cooked egg.
Answers: 2
Physics, 21.06.2019 20:30
When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m
Answers: 2
Physics, 22.06.2019 02:30
Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.
Answers: 2
Physics, 22.06.2019 15:50
Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air
Answers: 3
Physics, 22.06.2019 17:00
What equation is used to calculate the weight of an object on a plant ?
Answers: 1
Which procedure could be used to demonstrate that matter is conserved
during a physical change? *<...
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