Density = Mass / Volume
Density of stone = 100 / 10 = 10 g/mL
If the density is higher than water, then the object will sink. If the density of the object is lower than water, then the object will float.
Since the density of the rock is 10g/mL and the density of the water is 1g/mL, the stone will sink.
Answer:
current = 10A
Explanation:
recall the formula, Power = current * voltage
120 W = current * 12V
current (A) = 120 W / 12V
current = 10A
In an attempt to reduce our dependence on non-renewable resources, and cut down on the harm to the environment, we could burn biomass to produce electricity.
The materials that are conductors are Metal doorknob, Silver, Gold, Copper, Metal coat hanger, Paper clip, while insulators are Carpet, Wood, Rubber, Bulletin board, Clothing, Plastic.
<h3>
What are electric conductors?</h3>
Conductors are materials that allow electric current to pass through them.
<h3>What are Insulators?</h3>
Insulators are materials that do not allow electric current to pass through them.
<h3>Examples of conductors</h3>
- Metal doorknob
- Silver
- Gold
- Copper
- Metal coat hanger
- Paper clip
<h3>Examples of insulators</h3>
- Carpet
- Wood
- Rubber
- Bulletin board
- Clothing
- Plastic
Learn more about conductors and insulators here: brainly.com/question/492289
Answer:
8.0 Ns
Explanation:
Change in momentum is given as:
Final momentum - Initial momentum
= m*v - m*u
Where m = mass of ball
v = final velocity
u = initial velocity
Change in momentum = (2.0 * 3.0) - (2.0 * 7.0)
= 6.0 - 14.0 = -8.0 Ns
The magnitude will be |-8.0| = 8.0 Ns
