A 3-kg rock falls for 5 sec. What is its speed after falling for 5 sec? Reminder - Acceleration due to gravity, on Earth = 9.8 m/s/s

Please answer asap

Answers

Answer 1
Here too when an object is dropped, we know the initial velocity is zero when in free fall. So V =g*t this implies V= 9.8 *5=49m/s..... do you get it?

Related Questions

URGENTTT PLEASE HELP

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This doesn’t make any sense

I don't get this, you don't really need to explain, I just need the answer.
Thanks!

Answers

Answer:

august 19 - low tide, high tide

august 20 - low tide, low tide

NO MFKN LINK AND YOU WILL ET THE BRAINLIEST IF CORRECT!!!
10.A force that is applied to an object by a person or another object is called?
(10 Point)

A. Applied Force

B. Unbalanced Force

C. Balanced Force

Answers

Answer:

That is-

A. Applied Force

hope this helped! :)

A Applied Force
If its not A den its
C but I think its A

Draw a motion time graph. Write a story to go along with your graph

Answers

Ignore my not so good art skills lol

if a reaction starts with 30 grams how many should it end with?

Answers

thirty grams is how many

help please rlly easy

Answers

Answer:

If its that easy do it yourself not tryin to be mean but this is just a stem and leaf diagram

Explanation:

Calculate the energy transferred by a 12V hairdryer, running on a current of 0.50A, that is left on for 8.0 minutes.

Answers


Step 1
List all the information in symbol form and change into appropriate and consistent SI units if required.
V=12V
I=0.5A
t = 8.0 minutes
= 8 × 60
= 480s
E=?
Step 2
Use the correct formula.
E=IVt
Step 3
Calculate the answer by putting the numbers into the formula.
E = IVt
= 0.5 × 12 × 480
= 2880J
The answer is 2880J :) hope this helps!

name all of the processes of the rock cycle... and number them by the picture.... no links

Answers

Answer:

1. magma

2. igneous rock

3. sediments

4. sedimentary rock

5. metamorphic rock

6. melting

7. cooling, heating

8. weathering and erosion

9. compaction and cementation

10. heat and pressure

11. heat and pressure

12. weathering and erosion

Explanation:

just trust me .!!

A Motion Demonstration Model is shown in the diagram. At which of these positions does the ball have both the greatest potential energy and the least kinetic energy?
A) Position W
B) Position X
C) Position Z
D) Position Y

Answers

Answer:

C

Explanation:

Since potential energy is the energy stored inside an object or item due to its height/location/position, and kinetic energy is the energy and object has do to its motion/movement, the answer would be:
C) position z
Because the ball is no longer moving and is at the highest position that it can be (compared to w, x, and y).

Any absurd answers will be reported, no links either. Ill give branliest to someone with the best answer and someone who answered them all correctly

Answers

Answer:

1. D

2.C

3. A

4. B

5. D

I tried my best hopefuly you get good grade :)

Why does autumn start in different months of the year in North America and South America?
A) The earth is tilted on its axis creating different seasons in the North & Southern Hemispheres at different points in its revolution around the sun
B) The earth is at a different distance from the sun due to its revolution
C) The sun is stronger during autumn due to the earth's elliptical orbit.
D) The earth’s tilt causes the Northern Hemisphere to receive more sun year-round Eliminate

Answers

Answer:

D

Explanation:

Autumn start in different months of the year in North America and South America due to the tilt in earth's axis creating different distance from the sun for different regions.

What are seasons ?

A season is a time of year that can be identified by unique climatic features. Spring, summer, fall, and winter all occur in regular succession. Each has distinctive seasonal variations in light, temperature, and weather.

Each seasons starts at different month in two hemispheres of  earth. This s due to the fact that, earth's axis is not perfectly circular and it is slightly tilted towards sun.

When the Northern Hemisphere is tilted toward the sun in June, more of the day is spent being illuminated by the sun's rays than it is in winter. As a result, there are longer daylight hours.

There are fewer daylight hours in December because the Northern Hemisphere is tilted away from the sun. Similarly the autumn season also differ from that of the southern hemisphere.

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A balloon holds 50.0 mL of nitrogen at 25° C and a pressure of 736 mm Hg.
According to Boyle's Law, answer the following questions for 2 points each:

What will be the effect on the pressure inside the balloon if the volume is decreased to 25 mL?
Explain how this would demonstrate Boyle's Law.
Explain Boyle's Law in terms of the kinetic energy of molecules.

This is a written question
No link answers please!!!

Answers

Answer:

A container holds 50.0 mL of nitrogen at 25° C and a pressure of 736 mm Hg. What will be its volume if the temperature increases by 35° C?

✓ For this problem we would use the equation for Charles' Law which compares the direct relationship between Volume and Temperature when Pressure is …

ill give 50 points aNd brainiest to who ever gives the best answer, its due in 30 minutes , please help

Explain in 200 words the process that causes dew to form on blades of grass.

no links or saying random things.
dont answer just for points i will report ur answer.

Answers

Answer:dew is formed on grass

Explanation:Dew forms when the object, such as the glass, cools down to the dew point temperature. Water molecules in the air continually bombard surfaces, like blades of grass. ... If the object gets cold enough, and there is enough moisture in the air, condensation is much greater than evaporation and the film grows into dew drops.

Answer:

Hope the answer helps you!!

Have A nice day!!

Pls mark as Brainliest

Explanation:

Dew forms when the object, such as the glass, cools down to the dew point temperature. Water molecules in the air continually bombard surfaces, like blades of grass. ... If the object gets cold enough, and the air contains enough moisture, condensation exceeds evaporation, and the film grows into dew drops

As fall begins, we have lots of mornings with dew on the grass. To explain this, we start with the fact that air contains water in the gas phase, called water vapor. Dew is made of liquid water that has condensed from that water vapor.

Dew occurs when objects cool, such as when drops of liquid form on the outside of an ice-cold drink glass. Dew forms when the object, such as the glass, cools down to the dew point temperature.

Water molecules in the air continually bombard surfaces, like blades of grass. Some of the molecules stick, forming a very thin film of water. This film may not last long, as the water is also evaporating. The evaporation rate depends on the water temperature, which equals the temperature on the grass.

So condensation depends on the state of the atmosphere (primarily temperature and moisture), while evaporation depends on the temperature of the object. If the object gets cold enough, and the air contains enough moisture, condensation exceeds evaporation, and the film grows into dew drops.

Each night the weather report includes the temperature and the dew point temperature. If the two temperatures are close, dew is likely during the night. Because wind and cloudy skies keep the ground from cooling, dew also tends to form on calm nights with clear skies.

A baseball is thrown at 90 mph from east to west over a distance of 60 ft. What is
true of the ball's motion?
Its speed is 90 mph to the west.
Its acceleration is 30 mph.
Its velocity is 90 mph to the west.
Its acceleration is 150 mph.

Answers

Answer:

Its acceleration is 30 mph.

Explanation:

The true of the ball's motion will be that the velocity is 90 mph to the west. Velocity is the vector quantity. Because it shows the direction.

What is acceleration?

Acceleration is defined as the rate of change of the velocity of the body. Its unit is m/sec². It is a vector quantity. It requires both magnitudes and direction to define.

The given data in the problem is

The velocity of  baseball is,V=  90 mph

The distance travelled in mile is; d=0.0113636 mile

The time period is obtained as;

[tex]\rm t = \frac{d}{v} \\\\ \rm t = \frac{0.0113636}{90} \\\\ t=1.2 \times 10^{-4} \ hr[/tex]

The acceleration is obtained is 0.00108 mile/hr².

Hence, the true of the ball's motion will be that the velocity is 90 mph to the west.

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An archer shot a 0.07 kg arrow at a target. The arrow accelerated at 4,000 m/s2 to reach a speed of 50.0 m/s as it left the bow. During this acceleration, what was the net force on the arrow?
A) 280 N
B) .0000175 N
C) 57,142 N
D) 3.5 N

Answers

the answer is A ) 280 N

The net force which has to be applied on the arrow of 0.07kg to accelerate at the rate of 4000m/s² is 280N. Thus, the correct option is A.

What is Force?

A force is an influence which can be a push or a pull that can change the motion of an object. A force can cause an object with some mass to change the velocity, i.e., results into acceleration. A force is a vector quantity as it has both the magnitude and direction.

Force applied on an object can be calculated by the formula:

f = m × a

where, f = force applied,

m = mass of the object,

a = acceleration of the object

Therefore, the force applied on the arrow is:

f = m × a

m = 0.07kg

a = 4000m/s²

f = 0.07 × 4000

f = 280N

Therefore, the correct option is A.

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The Humbolt squid can travel 410 meters in 60 seconds. The squids average speed is ____. (Round to the nearest tenth)

Answers

Answer:

They swim at speeds up to 24 km/h (15 mph; 13 kn).

Explanation:

The answer to your problem is 6.8 meters

While at the beach, Lee collected this pile of rocks. How could Lee find out whether the rocks contain the same minerals?

A) Compare their sizes.
B) Compare their shapes.
C) Compare their masses.
D) Compare their colors.

Answers

The answer:
D) Compare their colors
compare their colors

NEED IN 5 MINUTES
Why do you think it’s necessary for meteorologists (weather scientists) to study multiple types of data when
predicting upcoming weather? Which types of data are important

Answers

sorry i didnt get this intime.....i hope you did well in whatever you did

Explanation:

5 min, Im late. :D good luck tho

NO MFKN LINK
9.The distance something travels in a certain amount of time, such as 45mph, is
(10 Point)

A. Velocity

B. Speed

C. Time

Answers

Speed is the answer

Answer:

The answer is A

Explanation:

Velocity is the rate of change of its position with respect to a frame of reference, and is a function of time.

Science 8 - Electromagnetic Spectrum Worksheet

Answers

Answer:

1. Electromagnetic spectrum

2. Electromagnetic radiation

3. Radiant energy

4. Infared  waves

5. Electricmagnetic radiation or Infared waves

6. Radio waves

7. Gamma rays

8. Radio waves

9. Ultraviolet rays

10. This is because it doesn’t contain water or a substance.

11. You should use sunscree and a hat to protect your skin from UV light that might  cause skin cancer.

Hope this helps

Giving brainliest if you answer correct1!1!1!1!1!

What happens to the atoms of a substance when it burns?

Answers

Answer:All the atoms rearrange to form a different substance or different substances

Explanation:An atom is the smallest unit from which a matter can be made.

When the atoms in a substance get heated, the atoms release energy.

The atoms and molecules combine.

So all the atoms rearrange to create a different substance or different substances.

Density of iron is 800 kg per cubic meter . calculate the mass of iron contained by a 5 cubic meter of iron block . Also calculate it's relative density..​

Answers

Answer:

this is your answer look it once.

Answer:

hope it is helpful to you

explanation is in the attachment

This is a written question.
No link answers please!!!

1.Predict the change seen in the balloon in the freezer

2.Explain your prediction

3.Use the equation to provide additional support for your prediction

Answers

Answer:

2

Explanation:

it freezes from liquid to solids

Use the diagram below to answer the questions that follow for 1 point each. Predict the change seen in the balloon in the freezer Explain your prediction Use the equation to provide additional support for your prediction


NO LINK ANSWERS

Answers

Answer:

The particle model of matter is one of the most useful scientific models because it describes matter in all three states. Understanding how the particles of matter behave is vital if we hope to understand science!

The model also helps us to understand what happens to the particles when matter changes from one state to another.

The following diagram shows different changes of state, as well as which processes are the reverse of each other. Melting and freezing are the reverse processes of each other and so are evaporation (boiling) and condensation.

Explanation:

I really need help with this!! Will give brainliest if you help T^T

Answers

Answer:

What inferences can you make about the melting points of the different substances and the motion of their particles, based on the data? (ignore that needed it here so i could see it better.)

Explanation:

Butter has a lower melting point than the cheese and the wax. The motion of the cheese were a little separated while the butter articles have more space in between. The wax had the closest particles.

I dont know if that makes sense? 

What is a disadvantage of using nuclear power to produce electricity?

A.
Nuclear waste must be safely stored for many years.

B.
Nuclear fission produces less energy than burning coal or oil.

C.
Nuclear waste must be burned which produces carbon emissions.

D.
Nuclear fission releases more air pollution than burning coal.

Answers

Answer:

A

Explanation:

What inferences can you make about the melting points of the different substances and the motion of their particles, based on the data?

Answers

Here’s the answer now hand over the brainilyiest

The wax has the greatest melting point than butter and cheese after the wax the cheese has the greater melting point than butter.

Melting point is the state at which the solid is converted into liquid on application of heat. Wax has greatest force of attraction among the wax particles which increases the melting point of the wax, that means higher temperature is required to break the bonds between the wax atoms. Butter has the lowest melting point, there is weak force of attraction between butter atoms the bonds between them break because of application of very little amount of heat. On application of heat on the cheese initially the cheese cube does not change in shape but become flattened due to application of heat. Hence, the wax has the greatest melting point than butter and cheese after the wax the cheese has the greater melting point than butter.

Learn more about melting point:

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Select the statement below that best describes how environmental conditions affect an individual’s likelihood of survival and reproduction.

Explain why you chose the answer you did to the question above.

Answers

Answer:

I need more information it depends on the conditions.

I chose this answer because different people have different illnesses and that can effect how their bodies respond to the environmental conditions

Answer: The 2nd box from the top

Explanation: I know because I just did this

A parallel circuit has a 125 Volt battery connected with 3 resistors. R1= 20 Ω, R2= 100 Ω, and R3= 50 Ω. Find the total current of this parallel circuit.

Hint: Find Total Resistance of a parallel circuit first then use Ohms Law I = V/R

10 A


1.5 A


8 A


16 A

Answers

Answer:

10A

Explanation:

to calculate r

1/R=1/20+1/100+1/50=2/25

r=25/2=12.5

I=125/12.5=10A

No links, i will report any absurd answers. Make it a paragraph please- ill give branliest to the best answer

Answers

Wait, wait, wait. What are we supposed to do here? What are the directions and I'll try to comment an answer. Do I write a paragraph about one of the two paragraphs given?
nehshfkajz
Find it there
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Pls answer. I will mark brainliest. help!? :( ILL GIVE U BRAINLIST THANK YOU5STARS + U GET THE POINTS!! plz help :(_________________________________________3. Tom took 3/4 of a pie. He could only eat 1/2 of what he took. What fraction of the pie did Tom eat?_________________________________________4. Use the area model below to calculate each product.(1/3 x 1/4= _______) (2/5 x 3/4= ______) (3/5 x 1/4=_______) (3/5 x 1/2=_______)(3/5 x 1/2=_______)__________________________________________Look for a pattern in the numbers. Describe a relationship between the numerator and the denominator of each answer fraction and those of the fractions being multiplied. ___________________________________________5. Determine each product.a) 3/4 x 2/5 = ________ b) 5/8 x 2/3= ________c) 4/7 x 2/3= ________ d) 2/3 x 7/10= ___________________________________________________ a. Convert the following Fahrenheit temperatures to Celsius (you may use a calculator):98.6F (normal body temperature)68F (room temperature)20F (a cold day)b. Convert the following Celsius temperatures to Fahrenheit:10C30C-40C (thats cold!) please help I will mark brainliest I'm failing these class plz( In the song Firework by Katy Perry identified all of the figurative languages)plz helpppp Which sentence contains an oxymoron? A. The bird that flew into the Smith's house was an uninvited guest. B. Jon pulled the corners of the top sheet until it was as tight as a drum. C. The rain poured down in buckets and drenched everyone at the picnic. D. He gave me the run-around before finally confessing the entire truth. 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The introduction screen to your application will contain a few lines of text to set up a story and then leave the user with a choice. Below the text, you will present two buttons that correspond to the different choices.For example, you might see the following text on the main screen:You are walking down the street when a tiger runs up and takes your lunch and then runs away...Do you want to chase the tiger or run away?ChaseRun AwayThe user must then tap one of the buttons. This will move the user to a new screen with a few more lines of the story and another choice and two more buttons. You will create three (3) turning points in your story. This means that your story will have eight (8) different possible outcomes and a total of 15 screens.RequirementsThe story must ask three (3) questions, no matter how the user answers the previous question. All the questions must be different and result in a different story text.The story must have eight (8) possible different final outcomes.The story must include a minimum of 15 screens in total.Create content that is appropriate and not-offensive. We will share these and play them together.For extra credit you can add an extra screen and use inputs to capture data from the user such as a name, favorite food, or lucky number and use this data in the story. Ummm....... Can u pls help me?secret society members attacked foreigners and Chinese Christians in BeijingThank you Links/ wrong answers = NOT TOLERATEDHave a nice day!!!! :) Question 4 of 10When the input is x = 3 for the parent function f(x) = x, what is the output?O A. f(x) = 3O B. f(x) = -3O C. f(x) = 0O D. f(x) = 1