A rock that has magnetic properties is

Which of the following is an example of a renewable natural resource?

borishaifa [10]

Answer:

c. lumber

Explanation:

Lumber is considered a renewable natural resource because it is gotten from trees and trees are grow-able. A renewable natural resource is a resource which can be used repeatedly and replaced naturally. Examples of renewable natural resources are solar energy from the sun, water, oxygen, biomass, trees etc. Trees can be harvested and processed into lumber. The harvested trees can be planted again by humans or they can naturally reproduce through seedlings or fruits that drop and germinate on their own. This renewable germinating process of trees makes lumber a renewable natural resource.

6 0

3 years ago

Suzanne makes a tower out of six identical plastic box. Then she uses a pan balance to measure the mass of the tower. She finds

EleoNora [17]

Take the 72 g and divid it by 6 which would equal 12 g each

5 0

3 years ago

Read 2 more answers

Which person will most likely hear the loudest sound?

Nataliya [291]

Person standing on A will hear the loudest sound

Explanation:

The intensity of a sound wave (which is proportional to the loudness of the sound) follows an inverse square law, which is:

$I\propto \frac{1}{r^2}$

where

I is the intensity of the wave

r is the distance from the source of the sound

This equation means that the intensity of the sound wave (and therefore, its loudness) is inversely proportional to the square of the distance from the source: therefore,

As we get closer to the source of sound, the loudness increases
As we move away from the source of sound, the loudness decreases

Therefore, the person that will hear the loudest sound is the one standing closer to the source, and therefore person A.

Learn more about sound waves:

brainly.com/question/4899681

#LearnwithBrainly

6 0

4 years ago

Read 2 more answers

Objects A and B both start at rest. They both accelerate at the same rate. However, object A accelerates for 3x the time as obje

mylen [45]

Answer:

v_Object A = 3v_Object B

OR

1/3v_Object A = v_Object B

Explanation:

Let's see what variables we have in this problem.

Since the objects both start at rest, we have an initial velocity of 0 m/s.

The objects accelerate, so we will have acceleration.

Object A accelerates for 3x the time as Object B, so we have time.

The problem wants us to compare their final speeds, so we have final velocity.

Check what constant acceleration kinematic equation has these variables:

v = v₀ + at

Let's create values for the unknown variables and compare the final velocities.

v = ?
v₀ = 0 m/s (objects start at rest)
a = 5 m/s²
t = 10 s

Since Object A accelerates for 3x the time as Object B, we can use t = 30 s for Object A.

Let's write the two equations:

v = (0) + (5)(10)
v = (0) + (5)(30)

Simplify these equations.

v = 50 m/s
v = 150 m/s

Let's use another set of values to compare the final velocities to see if the velocities differ by 100 m/s or Object A has 3x the final velocity of Object B.

v = ?
v₀ = 0 m/s (objects start at rest)
a = 3 m/s²
t = 7 s

Write the two equations:

v = (0) + (3)(7)
v = (0) + (3)(21)

Simplify these equations.

v = 21 m/s
v = 63 m/s

Now we can clearly see that the final velocities are differed by 3x. Object A has 3x the final speed compared to that of Object B.

3 0

3 years ago

A wave transports what

Natasha2012 [34]

It’s C. energy shdjqhkdajkdjqod

5 0

3 years ago