Which of the following is the correct SI unit to use to measure a length of rope?

A
Yards

B
Feet

C
Meters

D
Inches

Answers

Answer 1

Answer:

D

Explanation:

Answer 2

Answer:

its d inches

Explanation:


Related Questions

after the Collision the two cars stick together find the initial velocity of the car on the right hand side​

Answers

The car is moving with velocity 1m/s
This is because of conservation of linear momentum.

The the ______ is a disposable micro -camera used to take images of the digestive system

Answers

Answer:

Capsule (endoscopy)

Explanation:

The capsule endoscopy is a procedure whereby a pill containing a micro-camera is swallowed by a diagnostic patient. The capsule conveniently goes through the patient's digestive system tract and takes several thousands of images of the small and large intestines and as it travels through the digestive tract without causing pain or irritation to the patient.

Answer:

The answer is pill-cam.

Explanation:

mastering physics Two stones are launched from the top of a tall building. One stone is thrown in a direction 30.0 ∘ above the horizontal with a speed of 18.0 m/s ; the other is thrown in a direction 30.0 ∘ below the horizontal with the same speed

Answers

Answer:

The stone thrown upward lands farther away from the building.

Explanation:

Given that,

Angle = 30° above the horizontal

Speed = 18.0 m/s

Angle = 30° below the horizontal

Suppose, Which stone lands farther away from the building ?

We need to find which stone lands farther away from the building

Using formula of range

[tex]R=v_{x}t[/tex]

The horizontal velocity for the both stones is equal but the time will be different.

The time of stone thrown upward will be greater than that of downward.

Hence, The stone thrown upward lands farther away from the building.

Devin investigated whether salt reduces the boiling point of water. She poured 1 gallon of 18 degrees Celsius (°C) water into a pot and added 2 cups of salt to it. Devin heated it over a fixed flame and measured the temperature when the water reached a rolling boil. She repeated the experiment with 1 gallon of water and 4 cups of salt under identical conditions. Where did Devin make a mistake in her experimental design?


She did not boil a pot of water without salt.


She waited until the water reached a rolling boil.


She used different amounts of salt in the two pots.


She did not heat the pots of water at the same time.

Answers

Answer:C

Explanation:

She used 2 different amounts of salts so that was her mistake she should of used 1

please help me :/
Describe how Newton's laws relate to real world life experiences. Give an
example of each law and how it relates to real life experiences.

Answers

Answer:

HOW NEWTON'S LAWS RELATE TO REAL WORLD LIFE EXPERIENCE

Newton's law are very important because they tie into almost everything we see in everyday life. These laws tell us exactly how things move or sit still, like why you don't float out of bed or fall through the floor of your house. Newton's laws control how cars work, how water flows, how buildings don't fall down, and basically how everything around us moves.

EXAMPLE OF NEWTON'S LAW:

° First Law: Inertia

°Second Law: Force and Acceleration

°Third Law: Action and Reaction

HOW NEWTON'S LAW RELATE TO REAL LIFE EXPERIENCE

FIRST LAW (INERTIA) :

If you throw a rock straight up, it will not vary from its direction. Inertia enables ice skaters to glide on the ice in a straight line. If the wind is blowing, a tree's branches are moving. A piece of ripe fruit that falls from the tree will fall in the direction the wind is moving because of inertia.

SECOND LAW (FORCE AND ACCELERATION) :

The use of force in our everyday life is very common. We use force to walk on the road, to lift the objects, to throw a cricket ball, or to move a given body by some particular speed or direction. We are very familiar with the various effects of force. We can exert pull and push. And also When the car slows down. When you fall off a bridge. The car turning at the corner is an example of acceleration because the direction is changing. The quicker the turns, the greater the acceleration.

THIRD LAW (ACTION AND REACTION) :

For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air. Engineers too apply Newton's third law when designing rockets and other projectile devices.

This is the object of love in philosophy.
a. wisdom b. learning c. intelligence d. human person

Answers

Answer:

a

Explanation:

Answer A

Explanation

Sound energy: chemical energy: mechanical energy:

Answers

mechanical energy

Explanation:

its right

What is used in food preservation? ​

Answers

Answer:

If you are talking about the chemicals...

Explanation:

"Sugar, salt, nitrites, butylated hydroxy anisol (BHA), butylated hydroxyl toluene (BHT), tert-butylhydroquinone (TBHQ), vinegar, citric acid, and calcium propionate are all chemicals that preserve foods. Salt, sodium nitrite, spices, vinegar, and alcohol have been used to preserve foods for centuries."

Hope this is helpful!!

canning, pasteurization, freezing, irradiation, and chemicals

what is the molar mass of cobalt chloride?

A. 271.17 grams
B. 94.38 grams
C. 129.83 grams
D. 95 grams

Answers

Answer:

The answer is C. 129.83 grams

Answer is C. 129.83 grams

. A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.​

Answers

time period -1/10 frequency-10 hats

What is a disadvantage of the inefficiency of cars?
Group of answer choices

Tire wear

low speeds of cars

time it takes to get somewhere

air pollution
someone help please

Answers

The answer is air pollution

What are two characteristics of a proton?
A. Found outside the nucleus
O B. Found in the nucleus
C. Negative electric charge
I D. Positive electric charge
SUBM

Answers

(B and D) you welcome

Answer:

B and D

Explanation:

A rock was dropped from a bridge over a river
If the rock was released when it was 11.2 m above the water and it took 0.550 s to reach the water, what its velocity when it was released?​

Answers

11.2 = 0.550u + 1/2 * 9.8 * (0.550)^2

u = 17.67 m/s

how many bulldogs to beat 43 dragonss if each bulldog can beat 10 dragons​

Answers

Answer:

5 bulldogs

Explanation:

you need 4 bulldogs to beat 40 dragons, but since you would still need 3 dragons defeated, you would need another bulldog

What is a new technology that is now being used to treat cancer? ​

Answers

Answer:

Another new technology in cancer treatment is Image Guided Radiation Therapy (IMGT), which also employs linear accelerators. IMGT allows for even more precise radiation treatment because it uses technology that can recognize the size and shape of the tumor within the body.

Explanation:

Describe what happens to the gravitational force when the Sun, Earth and Moon
are in a line.

Answers

Answer:

a spring tide occurs

Explanation:

ithe gravitational pull makes that tide happen

Students in a lab were given an unknown sample to find the density of. The volume of the unknown sample was 16.8 ml, the calculated mass of the unknown sample was 134.4. What is the density of the unknown sample?
Note: You only have to fill in the numerical answer.

Answers

Answer:8

Explanation: 134.4 divided by 16.8

How would you measure and compare the size of two balls

Answers

Explanation:

The letter r stands for the radius of the sphere, which is the distance from the center of a sphere to its surface. The radius is exactly half of the diameter , which is the ...

2. In the activities below indicate if friction is useful or not useful? Explain your answer. i. Writing yes it is useful because when your writing because friction helps you see what your writing ii. Rubbing iii. Skiing iv. Rotating a wheel

Answers

Answer:

Please find the answer in the explanation

Explanation:

Friction is a force that opposes motion. One or two of the advantages of friction are break and ability of an object to walk.

Writing yes it is useful because when your writing because friction helps you see what your writing

ii. Rubbing. Yes, it is useful.

friction make it possible for two object to rub each other

iii. Skiing. No. It is not useful because With presence of friction, skiing will not be possible.

iv. Rotating a wheel No. It is not useful because Friction will oppose the rotation of the wheel.

19. A sample of an element has a volume of 78.0 mL and a density of 1.85 g/mL. What is the mass in grams of the sample? identify the information you are given.
A. 42.2 g
B. 76.2 g
sC. 144 g​

Answers

Answer:

The answer is 144 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 78.0 mL

density = 1.85 g/mL

We have

mass = 78 × 1.85 = 144.3

We have the final answer as

144 g

Hope this helps you

Billy needs to get to Pigeon Forge, that is 58.25 miles away from where he is. He is driving at 62.5 mi/hr. How long will it take him to get there?

Answers

Given parameters:

Distance of Pigeon Forge = 58.25miles

Speed  = 62.5mile/hr

Unknown:

Time it will take Billy to get to Pigeon Forge = ?

Solution:

Speed is a physical quantity and it is the rate of change of distance with time.

       Speed  = [tex]\frac{distance}{time}[/tex]

     Now let us input the parameters and find the time;

               62.5  = [tex]\frac{58.25}{t}[/tex]

              58.25  = 62.5t

                   t = [tex]\frac{58.25}{62.5}[/tex]   = 0.93hrs

Time taken for him to get there is 0.93hrs

Suppose you want to determine the electric field in a certain region of space. You have a small object of known charge and an instrument that measures the magnitude and direction of the force exerted on the object by the electric field. (a) The object has a charge of +25.0 μC and the instrument indicates that the electric force exerted on it is 40.0 μN, due east. What are the magnitude and direction of the electric field? E = (b) What are the magnitude and direction of the electric field if the object has a charge of -10.0 μC and the instrument indicates that the force is 40.0 μN, due west? E = (Chp18,p13GO)

Answers

Answer:

(a) 1.6 N/C, due east.

(b) 4 N/C, due east.

Explanation:

The force vector,[tex]\vec {F}[/tex] on the charge, q, in the electric field vector, [tex]\vec{E}[/tex], is

[tex]\vec {F}=\vec{E}q[/tex]

[tex]\Rightarrow \vec{E}=\frac{vec{F}}{q}\;\cdots(i)[/tex]

Let the unit vector towards east is [tex]\hat{i}[/tex], so the unit vector towards west is -

(a) Given that:

[tex]q=+25 \mu C[/tex],

[tex]\vec{F}=40.0 \mu N[/tex], due east

[tex]\Rightarrow \vec{F}=40.0 \mu N (\hat{i})[/tex]

From equation (i)

[tex]\vec{E}=\frac{40.0 \mu N (\hat{i})}{25 \mu C}=1.6(\hat{i}) N/C[/tex]

So, the magnitude of electric field is 1.6 N/C and the direction is towards east.

(b) Given that:

[tex]q=-10.0 \mu C[/tex],

[tex]\vec{F}=40.0 \mu N[/tex], due west

[tex]\Rightarrow \vec{F}=40.0 \mu N (-\hat{i})[/tex]

From equation (i)

[tex]\vec{E}=\frac{40.0 \mu N (-\hat{i})}{-10 \mu C}=-4(\hat{i}) N/C[/tex]

[tex]\Rightarrow \vec{E}=4(\hat{i}) N/C[/tex]

So, the magnitude of electric field is 4 N/C and the direction is towards the east.

parts of the breathing system

Answers

Answer:

it is a branch of tissue and organs . More it includes airways lungs and blood cells The muscles that power our lungs are also part of respiratory system .These parts work together to inhale oxygen and clean out waste materials(carbon dioxide) from our body .

What is the volume of a cube measuring 5.0 m on each side?
a
25 m3
b
125 m3
520 m3
d
5.0 m

Answers

Answer:

A.125

Explanation:

Its correct on Schoology.

Jordan wants to know the difference between using a 60-W and 100-W lightbulb in her lamp. She calculates the energy it would take to use each bulb for 30 s by using this equation: Power = Energy transferred (J)/time (s) What is the difference in the amount of energy transferred by the two bulbs during this time?

Answers

Answer:

The difference in the amount of energy transferred by the two bulbs is 1200 J.

Explanation:

The energy transferred by the two lightbulbs can be calculated with the given equation:

[tex] E = P*t [/tex]

Where P is the power and t is the time

For the 60 W lightbulb:

[tex] E_{60} = P*t = 60 W*30 s = 1800 J [/tex]

For the 100 W lightbulb:

[tex] E_{100} = P*t = 100 W*30 s = 3000 J [/tex]

Hence, the difference in the amount of energy transferred is:

[tex] E_{t} = E_{100} - E_{60} = 3000 J - 1800 J = 1200 J [/tex]

Therefore, the difference in the amount of energy transferred by the two bulbs is 1200 J.

I hope it helps you!

The difference in the amount of energy transferred by the two bulbs during this time is 1200 J.

Calculation of the difference in the amount of energy:

We know that

E = P*t

Here

P means the power and T means the time

So for 60W lightbulb, the energy should be

= 60*30

= 1800J

For 100 W, the energy should be

= 100*30

= 3000 J

So, the difference is

= 3000 -1800

= 1200 J

hence, The difference in the amount of energy transferred by the two bulbs during this time is 1200 J.

Learn more about energy here: https://brainly.com/question/24401678

If a car travels 300 m in 20 seconds how fast is it going?

Answers

Answer:

15mph

Explanation:

Because you've already done distance and time. Speed=distance divided by time. so it would be 300 divided by 20 giving you 15.

1. What is the average speed of a racecar that travels a distance of 230 miles in 2 hours?

Answers

Answer:

s = d/t

s = 230/2

s = 115 mph

Explanation:

Average Speed (s) = Distance travelled (d) / Time elapsed (t)

A car is traveling at 30 m/s when the driver spots an Elk in the road 50 m ahead.

Determine the necessary minimum acceleration to stop just in time. Draw the three

Graphs neatly.

Answers

Answer:

You will need to stop at least 20 m before you hit the elk.

Explanation:

Define heat?!........
.






.......​

Answers

Explanation:

Heat is a form of energy transferred between systems or objects of different temperature.

How far can a dragonfly get if it flies 17 seconds at a speed of 4.2 m/s

Answers

Answer:

The answer is 71.4 m

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

distance = velocity × time

From the question

velocity = 4.2 m/s

time = 17 s

We have

distance = 4.2 × 17

We have the final answer as

71.4 m

Hope this helps you

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