Answer:
8.2 m/s
Explanation:
The horizontal component of the velocity is given by:
where
v = 10 m/s is the magnitude of the velocity
is the angle at which the ball has been thrown, with respect to the horizontal
Substituting the values into the equation, we get
Answer:
Earth is made mostly of silicate rock in its crust and mantle, iron-nickel metal in the core. This is like some other planets -- but very unlike others.
When you're talking about gravity, it's easy to identify the equal
opposite forces.
Gravity ALWAYS produces an equal pair of opposite forces.
They both act between the centers of the two objects, one in
each direction.
Consider the equal pair of opposite gravitational forces between
you and the Earth. One force acts on you, and draws you toward
the center of the Earth. We call that force "your weight".
The other one acts on the Earth, and draws it toward the center
of you. Hardly anybody ever talks about that one, but the two
forces are equal ... your weight on Earth is equal to the Earth's
weight on you !
Visible range of electromagnetic radiation
350 x 8,500,000 = 2,975,000,000 = 2.975 x 10^9
0.006 x 4000 = 24 = 2.4 x 10
2,975,000,000 / 24 = 2.975 x 10^9 / 2.4 x 10 =
2.975 x 10^8 / 2.4 = 1.24 (rounded) x 10^8