The Milky Way is a _____ galaxy.
Answer: The Milky Way is a BARRED SPIRAL galaxy.
The buoyancy of an object depends on its density relative to the density of the fluid it's placed in, typically water in everyday scenarios. When an object is placed in a fluid (like water), it will float if its average density is less than that of the fluid. In other words, if the object is less dense than the fluid, it will float.
In this case, both pieces of wood have the same density of 0.90 grams per milliliter (g/ml), which is less dense than water. Therefore, both the 1-pound piece of wood and the 10-pound piece of wood will float in water.
However, it's important to note that the buoyant force acting on these objects will be the same for a given volume of wood because they have the same density.
The 10-pound piece of wood will displace more water (have a larger volume) to support its weight, while the 1-pound piece of wood will displace less water (have a smaller volume) to support its weight. The 10-pound piece of wood will have more of its volume submerged compared to the 1-pound piece due to the weight difference, but both will float.
Answer:
option A
Explanation:
given,
momentum of blue car in west direction = Pa = 2 kg.m/s
momentum of red cart in east direction = Pb = 3 kg.m/s
total momentum of the two cart = ?
Pa = 2 Kg.m/s
Pb = -3 kg.m/s
Total momentum
P = Pa + Pb
P = 2 - 3
P = - 1 kg.m/s
hence, the total momentum of the two carts after the collision is 1.0 kg•m/s
The correct answer is option A