That distance is the definition of 1 AU.
Answer:
When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop.
Explanation:
Brainliest???
It would impact the size by how far it is in km or light years
Answer:
the answer is D because it gets the spectrum of light
Answer: A) velocity is negative and acceleration is positive (-, +)
B) velocity is positive and acceleration is positive (+, +)
Explanation: A) It has been stated in the question that upward motion is to the positive y axis which implies that downward motion is to the negative axis.
The elevator is moving downward which implies that all quantities such as velocity, acceleration and height has negative value (time is always positive).
Before the button was pressed, the body is accelerating and moving with a velocity but since we are along the negative axis they are both negative.
Once the button was pressed the elevator starts decelerating making it have a negative acceleration (-a). This negative acceleration is on the negative y axis this making us have - (-a) =+a.
The elevator still moves with the same value of velocity thus making it retain it negative sign due to the negative axis
B) This motion is along the positive y axis since it is an upward motion thus making all physical quantities such as velocity, acceleration and height positive.
The boy throws the baseball up meaning that an initial velocity is needed to start up the motion.
This velocity is positive (+). As the baseball starts it motion it accelerates which is also positive (+), thus making both velocity and acceleration positive.
