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olasank [31]
4 years ago
12

Can someone please put these vocab terms in the right boxes

Physics
1 answer:
umka2103 [35]4 years ago
7 0

Conduction:

The handle of a pot becoming too hot to grab as it cooks on the stove.

Grabbing a warm coffee mug to warm your hands.

Putting an ice pack on an injury.

Burning yourself by touching boiling water.

Convection:

An oven that cooks by cycling warm air through the bottom and out the top.

Warm water rising to the surface of the ocean and cooler water sinking.

Cooking popcorn using a microwave.

Radiation:

Heat from a fire warming your hands.

Warm air rising off of the pavement.

Heat from the sun hitting a solar panel.

Hope this helps ☝️☝☝

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Importance of SI system in points​
monitta

Answer:

SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit system.

4 0
3 years ago
Directions: Fill in the blank with the correct word. Choose from the list of possible answers in the word bank below:
Alexxx [7]

Answer:

1).atoms (3). mixture. (5). Element

2). particles (4). molecules (6). suspension

Explanation:

(7). Homogeneous (8). Heterogeneous

(9). compound (10). solutions

8 0
3 years ago
What causes changes in weather?
MrRissso [65]
Climate change caused<span> by human activities that emit greenhouse gases into the air is expected to affect the frequency of extreme </span>weather<span> events such as drought, extreme temperatures, flooding, high winds, and severe storms.</span>
8 0
4 years ago
Read 2 more answers
If the rods with diameters and lengths listed below are made of the same material, which will undergo the largest percentage len
seraphim [82]

Answer:

The highest percentage of change corresponds to the thinnest rod, the correct answer is a

Explanation:

For this exercise we are asked to change the length of the bar by the action of a force applied along its length, in this case we focus on the expression of longitudinal elasticity

               F / A = Y ΔL/L

where F / A is the force per unit length, ΔL / L is the fraction of the change in length, and Y is Young's modulus.

In this case the bars are made of the same material by which Young's modulus is the same for all

              ΔL / L = (F / A) / Y

the area of ​​the bar is the area of ​​a circle

               A = π r² = π d² / 4

               A = π / 4 d²

we substitute

              ΔL / L = (F / Y) 4 /πd²

changing length

               ΔL = (F / Y 4 /π) L / d²

The amount between paracentesis are all constant in this exercise, let's look for the longitudinal change

a) values ​​given d and 3L

               ΔL = cte 3L / d²

               ΔL = cte L /d²  3

To find the percentage, we must divide the change in magnitude by its value and multiply by 100.

                ΔL/L % = [(F /Y  4/π 1/d²) 3L ] / 3L 100

                ΔL/L  % = cte 100%

 

b) 3d and L value, we repeat the same process as in part a

               ΔL = cte L / 9d²

               ΔL = cte L / d² 1/9

               ΔL / L% = cte 100/9

               ΔL / L% = cte 11%

   

c) 2d and 2L value

               ΔL = (cte L / d ½ )/ 2L

               ΔL/L% = cte 100/4

               ΔL/L% = cte 25%

d) value 4d and L

               ΔL = cte L / d² 1/16

                ΔL/L % = cte 100/16

                ΔL/L % = cte 6.25%

   

The highest percentage of change corresponds to the thinnest rod, the correct answer is a

5 0
3 years ago
Two electric motors drive two elevators of equal mass in a three-story building 10 meters tall. Each elevator has a mass of 1,00
lukranit [14]

The work done by each motor is c) 9.8\cdot 10^4 J

Explanation:

The work done when lifting an object is equal to the change in gravitational potential energy of the object:

W=mg \Delta h

where

m is the mass of the object

g is the acceleration of gravity

\Delta h is the change in height of the object

In this problem, each motor is lifting one elevator, so the mass of each elevator is

m = 1000 kg

and we have

g=9.8 m/s^2

\Delta h = 10 m

Therefore, the work done by each motor is

W=(1000)(9.8)(10)=9.8\cdot 10^4 J

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

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