3. A rescue plane drops a package to a stranded party of explorers. The plane is traveling horizontally at a velocity of
100.0 m/s at a height of 50.0 m above the ground.
a. How long will it take for the package to hit the ground?

Answers

Answer 1

Hi there!

For this part, we can disregard the horizontal velocity because horizontal and vertical motion are INDEPENDENT.

We can used the simplified equation to solve for time:

[tex]t = \sqrt{\frac{2h}{g}}[/tex]

Where:

h = height

g = acceleration due to gravity (assume g = 10 m/s²)

Plug in given values:

[tex]t = \sqrt{\frac{2(50)}{10}} = \sqrt{10}[/tex]

t ≈3.162 sec


Related Questions

how are sound vibrations amplified in a vertebrate ear?

Answers

Answer:

by movement of the bones of the middle ear and by differences in the surface area of the eardrum versus the oval window.

Explanation:


Consider the diagram of a pendulum's motion shown above. A pendulum can be used to model the change from potential energy
to kinetic energy and back to potential energy. Locate the place in the diagram where kinetic energy is the greatest.
A.point A
B.point B
C.point c
D.both points A and B

Answers

Answer: D

Explanation: Potential stores Kinetic Energy so, Point C will have Kinetic turned into Potential.

Answer: the answer is D

Explanation:

If you wanted to find an element that
would react similarly to chlorine (CI),
where would you look and why?

Answers

Answer:  Fluorine (F) and chlorine (Cl) are two good choices.  See reasoning below.

Explanation:  Mendeleev arranged the elements in the periodic table in a manner that each group, or vertical column, contained elements that exhibited similar chemical properities.  He even reserved spaces for undiscovered elements when none of the known elements had properties similar to those above or below the known elements in a group.  An interesting event illustrates this property.  In December 2010, NASA announced an important new discovery that was to be broadcast on live TV, creating much speculation (e.g., UFO's are real and we'll see the aliens sequestered at Roswell!!!  I knew it.).  

The actual announcement:

"Dec. 2, 2010:  NASA-supported researchers have discovered the first known microorganism on Earth able to thrive and reproduce using the toxic chemical arsenic. The microorganism, which lives in California's Mono Lake, substitutes arsenic for phosphorus in the backbone of its DNA and other cellular components."

A look at the periodic table shows arsenic just below phosphorus, in the same group.   This was an unexpected find, but it might have been predicted with an understanding of how the elements are organized.  

Side note:  look how close silicon is to carbon.  Can there be a life form whose being is made up of silicon instead of carbon?  Sure . . . why not?  Maybe not on Earth, but . . . wait . . . did that marble statue just wink?

1. Starting today. I will now change my behavior/s like ______________ because _________________

2. As an adolescent, I promise that _________

3.changes happening during puberty stage are ____________

4. I enjoy the puberty stage because _____________


Kukumplituhin nyo lang po yan base po sainyo
SALAMAT ❤️

Answers

Answer:

be mature, it's the only way to be called independent, I will help my parents with doing chores, you will meet new friends

Explanation:

it's just my own understanding

Answer:

1eating junk food

2 I will be a good girl

briefly explain about electrophorus​

Answers

Answer:

a device for repeatedly generating static electricity by induction.

Explanation:

atoms and molecules in matter are always_______

Answers

I think atoms and molecules in matter are always in motion because of kinetic energy.

Answer:

in motion.

Explanation:

In chemistry, we often explain the states of matter in terms of the kinetic molecular theory (KMT). The word kinetic refers to motion and the kinetic molecular theory suggests that atoms and molecules are always in motion. The energy associated with this motion is termed kinetic energy.

Point out the following about solids: The particles (atoms or molecules) are attracted to each other. The particles (atoms or molecules) vibrate but do not move past one another. The solid retains its shape.

They are not always in motion. They are always in motion if and only if the temperature of the surroundings is greater than absolute zero ( 0 K ).

Not only are molecules really small but they are in constant motion. The motion is called “thermal motion” because it's caused by temperature. Increase the temperature around them and the molecules move faster.

what is a molecule?

Answers

Answer:

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.

Explanation:

Ellipses have only one focus. Question 14 options: True False

Answers

Answer:

False. This is because ellipses have 2 focus points and not only one.

A refrigerator is 3cm by 3cm by 6cm wat is the volume of the refrigerator?

Answers

Explanation:

volume= 3cm×3cm×6cm=18cm3

What does Newton's Second Law state and what are the formulas used?

Answers

Answer:

Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

A ball is projected horizontally from the top of a hill with a velocity of 30m/s if it reaches the ground 5sec later the height of the hill is???

Answers

Answer:

The hill is a total of 150 meters tall

Explanation:

30×5=150

A car’s gas tank holds 16 gallons of gasoline. If 1 gal = 3.785 L, how many liters of gasoline does the tank hold?

Answers

Answer: 60.56

Explanation: Just multiply 3.785 by 16.

describe a good speech choir.​

Answers

Speech choirs are performance groups that recite speeches in unison, often with elements of choreography and costuming to help bring the speech to life. Much like musical choirs, dynamic -- volume -- range, expression and accurate coordination of syllables are all important for a successful performance.

How many dots belong in the electron dot diagram of a boron (B) atom?

three
five
eight
thirteen
BTW ITS SCEINCE

Answers

THREE IS THE ANSWER

HOPE THIS HELPS

Answer:

3

Explanation:

7. The______
is used for short approaches from the rough and fairways of less than 125 yards.
No. 4 iron
No. 7 wood
putter
pitching or sand wedge

Answers

Answer:

Putter

Explanation:

I looked it up. It said golf club but putter is the same thing I believe. :)

Answer:

pitching or sand wedge

Explanation:

his club can also be used to get out of sand traps.

The precision of a balance is ±0.02 g. The accepted value for a measurement is 26.86 g. Which measurement is in the accepted range?

26.02 g
26.82 g
26.87 g
26.90 g

Answers

[tex]\sf{ 26.87~g}[/tex]

Explanation:

The precision of a balance is ±0.02 g.

The accepted value for a measurement is 26.86 g.

The accepted range is: =[26.86-0.02, 26.86+0.02] = [26.84, 26.88]  

So,26.87 g is correct

write 9.423 x 10^-9 in expanded form

Answers

Answer:

Very large and very small numbers written in standard form take up a large amount of space. They are hard to read and understand and are difficult to use in mathematics. One way to write a very large or very small number is to use a different form of notation. Converting to a workable number is done using scientific or engineering notation.

Explanation:

Which gas law describes the relationship between temperature and pressure at a constant volume?

Boyle’s law
Charles’s law
Gay-Lussac’s law
combined gas law

Answers

Answer:

Charles's law

Explanation:

When the pressure of a gas is held constant, its volume and temperature can be related using answer B.Charles' law.

Question 8 of 35
A car has a mass of 1000 kg and is travelling at a speed of 26 m/s. Calculate the kinetic energy of the
car. Use the word equation below to help you.
kinetic energy = 0.5 x mass x (speed)?

Answers

Answer:

338,000 J

Explanation:

The kinetic energy of an object can be found by using the formula

[tex]k = \frac{1}{2} m {v}^{2} \\[/tex]

m is the mass

v is the velocity

From the question we have

[tex]k = \frac{1}{2} \times 1000 \times {26}^{2} \\ = 500 \times 676 \\ = 338000[/tex]

We have the final answer as

338,000 J

Hope this helps you

If an object falls far enough, it will reach terminal velocity. At this velocity, the force of air
resistance is equal to the force of gravity on the object. The forces on the falling object are
balanced. What will happen to the object and why?

Answers

Answer:

The object will contine to fall, but at a constant velocity.  There will be no more acceleration.

Explanation:  When the force of gravity is equal to the reverse force of air resistance, there will will be no net force on the falling obect.  F = ma, and F (net) = 0.  It will continue at the same speed until those forces become imbalanced again (such as when the force pushing up from the ground is greater than the force of gravity pulling it down).  The metric term for this sudden resistance is "crash/bang/clunk/yieouch."

How are forces, motion and energy related?

Answers

When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward. 3. Potential energy is stored energy. ... A force is a push or pull that causes an object to move, change direction, change speed, or stop.

. In a wave, …………………… is carried from one place to another.

Answers

Answer:

which wave sound wave or water wave

From the roof of the Daily Planet, Superman spots a child in distress. In the first second after taking off, he travels 1500 m east and 500 m downward. What is the angle below the horizontal that superman is heading?

Answers

Answer:

90 degrees

Explanation:

A charge of 24 C pass a certain point in a conductor in 10 s. What is the size of current in the conductor?

Answers

Answer:

write the name of any five districts of nepal

Answer:

2.4A

Explanation:

I = Q/t

I = 24/10

= 2.4A

A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of 11 m/s in a time of 28 s. The combined mass of the boat and trailer is 410 kg. The frictional force acting on the trailer can be ignored. What is the tension in the hitch that connects the trailer to the car

Answers

The tension on the hitch that connects the trailer to the car is 160 N.

From the information provided;

Initial velocity = 0 m/s (the car started from rest)

Final velocity = 11 m/s

Time taken = 28 s

From the formula;

a = v - u/t

a = 11 - 0/28 = 0.39 ms-2

The force that acts on the trailer  = tension in the hitch that connects the trailer to the car

Force = mass × acceleration

Force = 410 kg × 0.39 ms-2

Force = 160 N

Learn more: https://brainly.com/question/24857760

which machine have 100% efficiency​

Answers

A simple machine, such as a lever, pulley, or gear train, is "ideal" if the power input is equal to the power output of the device, which means there are no losses. In this case, the mechanical efficiency is 100%.

Hope it helps you :)

Explanation:

a simple machine such as a level pulley, or gear train ,is ideal if the power input is equal to the power output of the device ,which means there are no losses.in this case the mechanical efficiency is 100 percent .

The graph in Figure 4.15 shows the position and time for two runners in a race. Who has the faster speed, Robin or Joel? Explain how to answer this question without doing calculations.

Answers

Answer:

Joel has the faster speed.

Explanation:

Joel has a steeper slope on the graph. The steeper a slope is, the faster speed will be. Therefore, Joel's slope is steeper which increases overall speed.

You travelled from Ras al Khaimah to Abu Dhabi by road in 3 hour. The distance between the two cities is 270 km, whereas the aerial (by air) distance is 210 km.
note: Aeroplane always flies in straight line.

Please choose one of these answers:

A) average velocity is 60 km/h
B) average velocity is 70 km/h
C) average velocity is 80 km/h
D) average velocity is 90 km/h

Answers

Average velocity is 90km/h

write the energy conversion when climbing a ladder​

Answers

A child climbing a ladder is transforming kinetic energy into potential energy.

find the components to write this vector in unit vector notation: 63.5 A ​please help

Answers

Vector is perpendicular to x axis or i component.

Hence i component is 0

j component is 63.5

[tex]\\ \sf\longmapsto \overrightharpoon{A}=0\hat{i} +63.5\hat{j}[/tex]

Other Questions
Carina loved running, and she loved winning too. She was the captain and star athlete of her track and field team. Although Carina wasnt an excellent runner when she first joined the team two years earlier, she practiced all the time and soon began to win almost every race in which she competed. Carina was doing so well that she thought she might become the winningest track and field athlete in her schools history!2One afternoon at track practice, Coach Winder nabbed everyones attention to introduce a new athlete. This is Roberto," he said. "He just transferred to our school from Greensboro Middle School. Please welcome Roberto to the team! 3The members of the team clapped and jostled each other as they tried to shake Robertos hand. As the team captain, Carina shook Robertos hand first. She introduced herself and told Roberto that she was excited to have another team member. Roberto told Carina that he had been reluctant about joining the team, but Carina assured him that he would have a marvelous time. 4The next day, the members of the track team stretched before running some sprints. Carina told Roberto that he could race with her. Dont worry, she said. Ill go easy on you because its your first practice. 5Carina and Roberto lined up at the starting blocks. When they heard the CRACK of the starting pistol, Roberto and Carina started. After a short distance, Carina realized that Roberto was no longer beside her. She turned to see how far behind he had fallen, but to her amazement, Roberto was not behind her. She looked up and saw Roberto surging ahead. His feet moved as fast as lightning! When Carina realized that she was about to lose, she ran as vigorously as she could; however, it wasnt enough. Roberto triumphed. Carina seemed almost paralyzed with shock, but she managed to smile and congratulate him. 6Over the next few weeks, Roberto became a phenomenon on the track. No matter how hard Carina trained, she could never beat Roberto. 7One evening after a track meet, Carina was desolate. Roberto had won first place, and Carina had come in third! She considered hanging up her running shoes and quitting the team. Just as she was about to call Coach Winder, her father entered the living room. Carina explained her situation to him. 8If winning is so important to you that you cant merely have fun being a member of the team, said Carinas father, then I guess quitting is your only option. But, before you make your decision, think about why you originally joined the team. 9The next day, Carina walked into Coach Winders office and handed him a slip of paper. Coach Winders eyes widened as he read it. Then, he closed the note and shook his head approvingly. 11Thats right, Carina said with a smile, Id like Roberto to serve as co-captain of the team. WHATS THE MAIN CONFLICT IN THE STORY A] carnina doesn't want to be on the track team any moreB] over the past 2 years, carnina has become an excellent racer C] the coach doesn't want carnina and Roberto competing in an upcoming event D] a new student joins the track team and becomes competition for carnina 2. WHAT IS THE THEME FOR THIS STORY ? A] having fun is more important than winning B] when someone does better than you, practice more so you can beat themC] never settle for second place D] if someone is better than you at something, u should just quit energy in kicking the ball? What is one way that the movement of matter through an ecosystem is differentfrom the transfer of energy? Question below. Plz help Please help! What system of linear equations is shown in the graph? 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