Our Earth budget is how much energy we receive from the sun.
So the best answer is A
Answer:
1. distance and period of time.
Explanation:
The speed is calculated using the formula 
"k" is the speed, "d" is the distance and "t" is the time.
You need distance and time to calculate the speed.
Speed is how fast an object is going. The direction is irrelevant to speed, not to be confused with velocity, which is speed in a given direction.
Answer:
Air and ice
Explanation:
convection, process by which heat is transferred by movement of a heated fluid such as air or water.
Everyday Examples of Convection:
radiator - A radiator puts warm air out at the top and draws in cooler air at the bottom.
steaming cup of hot tea - The steam you see when drinking a cup of hot tea indicates that heat is being transferred into the air.
ice melting - Ice melts because heat moves to the ice from the air.
Answer:
in salt water
Explanation:
The buoyant force acting on a body depends on the volume of body immersed, density of liquid in which the body is immersed and acceleration due to gravity.
Buoyant force = Volume immersed x density of liquid x g
As the density of salt water is more than the fresh water so the buoyant force acting on the boat in salt water is more than the fresh water.
(Lo siento si mi español es malo, no es mi primera lengua
)
1. velocidad media = desplazamiento/tiempo
desplazamiento = 0 porque el athelete vuelve al punto inicial en un círculo
velocidad media = desplazamiento/tiempo = 0/10 = 0
2. la distancia entre A y B es 5 cm porque
a^2 + b^2 = c^2 (el teorema de Pitágoras) así:
rapidez media = distancia/tiempo = 5/5 = 1 cm/s o 0.01 m/s
y yo no se cómo hacer 3-5 :( lo siento
3. Creo que es dos triángulo
s AB y CD menos la línea de fondo
5. Creo que es E + F porque B y D b y d cancelarse el uno al otro y C y C tambien pero no lo sé con seguridad.
