When comparing a star’s absolute magnitude to its apparent magnitude, which is usually the case? select all that apply.
a star’s absolute magnitude can be brighter than its apparent magnitude.
a star’s apparent magnitude can be brighter than its absolute magnitude.
a star’s absolute magnitude can be equal to its apparent magnitude.
no star’s apparent magnitude is greater than the sun’s apparent magnitude.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!