Answer:
Answer. An atom that has fewer neutrons than protons and more electrons than protons is an anion. Ion are charged particles. ... Electrons are negatively charged particles, therefore, there excess will be define an ion as anion.
Explanation:
so yea
Answer:
C. Its velocity is perpendicular to its acceleration
Explanation:
Because acceleration is always perpendicular to the velocity when the velocity will change direction without change it's magnitude
In 1842, Julius Robert Mayer discovered The law of conservation of Energy. It its most compact form, it it now called The first law of Thermodynamics
Energy can neither be created nor destroyed, it can only be changed to another form of energy.
You probably know that i is x and j is y. So if you put them on a triangle where they should be, you see that you are basically finding the hypotenuse of the triangle. Use Pythagorean theorem, solve for H.
The motion of the light is a uniform motion with constant speed
, therefore we can use the basic relationship between speed, space and time:
(1)
where S is the distance covered and t is the time taken. The light takes t=1.3 s to travel from the moon to Earth, therefore by rearranging eq.(1) we can find the distance between the Moon and the Earth: