By adding mass to the car, will we increase the average speed of the car?

Answers

Answer 1

Answer: 50 miles is the speed

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Identify the main renewable energy resources

Answers

The main renewable sources of energy are solar radiation, wind, geothermal, and tides.

The main renewable energy resources are
Tidal energy
Hydroelectric energy
Wind energy
Geothermal energy
Solar energy

You are twice as likely to become good friends with the person who is in the dorm room next to you than the person two doors down. This is due to:A. Proximity.
B. Common Interests.
C. Shared Values.
D. Social Background

Answers

I think A. Proximity
Since the person is closer, you get to see them more often

The correct answer is A

Why is carbon unique among the elements?????

Answers

Because no living organism can exist without carbon. It is the essence if life. Every single living thing that breathes or moves or produce is made up if carbon

Calculate the conductance of a conduit the cross-sectional area of which is 3.0 cm2 and the length of which is 9.0 cm, given that its conductivity is 0.80 ohm-1cm-1.

Answers

Answer: $0.266 ohm^(-1)$

Explanation: Specific conductance or conductivity is the conductance for unit volume of a solution.

$\kappa=C* (l)/(a)$

where,

$\kappa$ =Specific conductance or Conductivity= $0.80ohm^(-1)cm^(-1)$

C = Conductance = ?

l = length= 9.0 cm

a = area = 3.0 $cm^2$

$(length)/(area)$ = cell constant = $(9.0cm)/(3.0cm^2)=3cm^(-1)$

$0.80ohm^(-1)cm^(-1)=C* 3cm^(-1)$

$C=0.266 ohm^(-1)$

for resistance we have R=ρ l/a
thus for conductance we have K=σ a/l
conductance,K=1/R
conductivity,σ =1/ρ

σ = .80 Ω-1 cm-1
l =9 cm
a = 3 cm²
K=.80 ×3/9
=0.26 Ω-1

I need a equation for a problem in using a pulling force a mass a coefficient of static friction a coefficient of kinetic friction and solving for the frictional force

Answers

The minimum pulling force required to start it moving is
equal to the static frictional force.

F = (mass) x (gravity) x (coefficient of static friction).

Once it's moving, the force required to keep it moving at a steady speed,
without speeding up or slowing down, is the force of kinetic friction.

F = (mass) x (gravity) x (coefficient of kinetic friction).

In both equations, [ (mass) x (gravity)] is just the object's 'weight'.

Ix identical square pyramids can fill the same volume as a cube with the same base. If the height of the cube is h units, what is true about the height of each pyramid? a.The height of each pyramid is h units.
b.The height of each pyramid is h units.
c.The height of each pyramid is h units.
d.The height of each pyramid is h units.