Answer:
8. sketches and models helped the astronauts in their training program as they prepare for their missions
9. before building the Mars lander , students need to sketch their design
Answer:
1.7 g/cm³
Explanation:
Given that:
Density of substance = 3.4 g/cm³
Relative density to another substance = 2
Density of second substance=?
Let density of second substance = x
Relative density = density of substance / density of second substance
Relative density = density of substance / x
2.0 = 3.4g/cm³ / x
2 * x = 3.4 g /cm³
x = 3.4 g/cm³ ÷ 2
x = 1.7 g/cm³
<span>A. An impulse of a force changes the momentum of a body and has the same units and dimensions as momentum.</span>
The <span>asthenosphere is under the lithosphere.</span>
Answer: B) Light
Explanation: light waves are Electromagnetic waves. Visible light is one of the many types of electromagnetic waves. The others are mechanical waves.
