Ethan is helping his father rearrange the furniture in their living room. They have two different tables that are the same size. When Ethan pushes on each table, he finds that it is harder to move table A than it is to move table B. Why does Ethan have to push with more force on table A than on table B?
a
Table A has more mass than table B.
b
Table A is less dense than table B
c
Table A has more volume than table B.
d
Table A weighs less than table B.
a
Table A has more mass than table B.
Even though both tables are the same size, table A is harder to move which suggests that it has a greater mass. Mass refers to the amount of matter in an object and is directly proportional to the force required to move that object. If table A requires more force to get it moving, it likely has more mass. Density and volume are not mentioned as differing between the tables, and since the tables are the same size, (c) is not correct. (d) is incorrect because if table A is harder to move, it likely weighs more than table B, not less, assuming they both experience the same gravitational acceleration. (b) is not relevant in this context since the comparison is not about density (which is mass/volume) but the required force to move the tables.
2 4 sentanc paragaph obut ignios roks
Igneous rocks are formed through the solidification and cooling of molten rock, known as magma or lava. These rocks are characterized by their crystalline structure, as they cool and solidify relatively slowly beneath the Earth's surface or rapidly when erupted from a volcano. Igneous rocks can be found in a wide range of colors and textures, depending on the composition of the magma and its rate of cooling. Some common examples of igneous rocks include granite, basalt, and obsidian. These rocks play a significant role in Earth's geology and have important uses in construction, as they are often strong and durable. Additionally, studying igneous rocks provides valuable insights into the geologic history and processes that have shaped our planet over millions of years.
19 + 35.3
*
37.2
54
54.3
16.3