Answer:
A. A volcano erupts on a small island.
C. Flooding loosens dirt and rocks along a hillside.
Explanation:
Tectonic activities and mass wasting will greatly lead to a change in land forms on earth's surface.
When a volcano erupts on a small island, a change in landform often results. Also, flooding can lead to changes in land form.
- Volcanic eruptions generally adds new materials to the earth surface.
- Magma that reaches the surface called lava deposits rock materials unto the surface.
- During an extensive period of flooding, materials are carried from one place to another and this greatly sculpts the surface of the earth.
Answer:
Renewable energy sources 1.Cost more then nonrenewable resources and 2.Are so far not as reliable as nonrenewable energy.
Explanation:
Momentum of an object = (its mass) x (its speed) .
Since speed is a factor of momentum, an object that
isn't moving doesn't have any.
-- The moving player has momentum.
-- The stationary one doesn't.
Answer:
True
Explanation:
because if your body image is negative your holistic health is will affect
Answer:
The magnitude of the acceleration of the 19 kg block is 1.414 m/s²
Explanation:
From Newton's second law of motion;
where;
m is the mass of the objects involved, kg
a is the acceleration of the object, m/s²
different forces on the block and string
⇒force due to 15 kg block
=mgcosθ = 15×9.8×cos20 = 15×9.8×0.9396
= 138.12 N
⇒Tensional Force on 19 kg mass:
T = mg = 19×9.8 = 186.2 N
186.2 - 138.12 = a(15+19)
48.08 = a(34)
a = 48.08/34
a = 1.414 m/s²
Therefore, the magnitude of the acceleration of the 19 kg block is 1.414 m/s²
