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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Make a 29 day timeline. Along the timeline draw and label the phases of the Moon starting with a full moon, crescent, first quarter, gibbous and full. Finish the second half showing the waning moons back to the new moon.
PLEASE Include the drawing and your answer to the question above
PLEASE NO FAKE ANSWERS.
have u ever wanted to just sleep all day and night
Answer:
yes ofc
Explanation:
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
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:
The difference in electrical potential energy between two places is called:
a. resistance
b. friction
c. induction
d. voltage
The correct option is, (d) voltage.
The difference in electrical potential energy between two places is called voltage.What is the difference in electrical potential energy between the two places?The external effort required to move a charge in an electric field from one position to another is known as an electric potential difference, or voltage. A test charge with a value of +1 will experience an electric potential difference, which is a shift in potential energy.What is a difference in electric potential energy?The electric potential difference is the difference in electric potential (V) between the final and the initial location when work is done upon a charge to change its potential energy.What is the potential difference between two charges?The word "potential difference" refers to the magnitude of the electrostatic force acting between two charged objects. Depending on the polarity of the objects, a charged body will attempt to travel in one direction if it is placed between two objects with a potential difference.Learn more about electrical potential energy here:
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Using The graph to answer 12 and 13. Number 14, 16, and 17 answer don't have to use graph. Please Help ASAP.
12- In The graph Below what events do these arrows mark? What happens during these events?
13- What event appears to have had the greatest impact? Explain your answer in terms of the Graph
14- What are two possible reasons why large poulations of organisms die?
16- Why did new and existing aquatic organisms flourish during the Mesozoic era? Use The terms glaciers, Pangaea, and sea level in your explanation.
17- Approximately how long did Precambrian time last?
A- 0.5 Billion years
B- 3.5 Billion years
C- 4.0 Billion years
D- 4.25 Billion years
Answer:
B 3.5 billion years
Explanation:
3.5 Billion years ago
Which characteristics belong to Whittaker’s classification system? Select two options.
a.three domains
b.six domains
c.two kingdoms
d.five kingdoms
e.five levels
f.seven levels
g.eight levels
Answer:
Five kingdoms & Seven levels
Explanation:
Robert H. Whittaker proposed five kingdom classical system for living organisms in 1969. These were: Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Animalia, and Kingdom Plantae. His work was the improvement of earlier work conducted by Carl Linnaeus who proposed three kingdom classification system (Animalia, Plantae, and Protista).
Whittaker's system further categorized each kingdom to seven levels. These were: Kingdom → Phylum → Class → Order → Family → Genus → Species. This categorization was based on similarities in organisms at different levels.
PS: The scientific name of each organism is the combination of genus and family name.
URGENTTT PLEASE HELP
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.
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.
name all of the processes of the rock cycle... and number them by the picture.... no links
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 .!!
The Humbolt squid can travel 410 meters in 60 seconds. The squids average speed is ____. (Round to the nearest tenth)
Answer:
They swim at speeds up to 24 km/h (15 mph; 13 kn).
Explanation:
No links, i will report any absurd answers. Make it a paragraph please- ill give branliest to the best answer
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
Answer:
C
Explanation:
This is a schematic for a clothes dryer appliance. This appliance dries clothes primarily by converting--
A) Thermal energy into electrical energy
B) Electrical energy into thermal energy and mechanical energy
C) Kinetic energy into thermal energy
D) Electrical energy into mechanical energy
The cloth dryer appliance works on the energy transformation from electrical energy into mechanical energy and thermal energy. Hence, option B is correct.
What is energy transformation?According to energy conservation law, energy can neither be created nor be destroyed but it can be transformed from one form to the other. Thus, energy lost by one form can be gained in other form.
In electrical devices, electrical energy is converting to various other forms. For instance, in lamps, electrical energy is converted to the light energy. Similarly in fan electrical energy is converted to the mechanical energy.
In a cloth dryer the electrical energy is converted to the mechanical energy to make it operate and this further produces the thermal energy sufficient to dry the clothes.
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I don't get this, you don't really need to explain, I just need the answer.
Thanks!
Answer:
august 19 - low tide, high tide
august 20 - low tide, low tide
The dots in electron dot diagrams represent ____ ____.
A core electrons
B electrical charge
C valence electrons
Answer:
C. valence electrons
Explanation:
Each dot is a valence electron.
Also, in my school, we called them Lewis Dot Structures.
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.
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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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
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.
PLZZZZZ! HELP! I'll give brainliest to the first correct answer, five stars, and a heart!
Answer:
frequency: 2nd choice
period: 4th choice
amplitude: 1st choice
wavelength: 3rd choice
speed: 5th choice
Calculate the energy transferred by a 12V hairdryer, running on a current of 0.50A, that is left on for 8.0 minutes.
Which is the source of variations in a population of organisms? No files or links 8th Grade. Please help ASAP.
A- Changes in enviroment
B- Changes in genes
C- The interaction of genes with an enviroment
D- The interaction of individuals with an enviroment
While playing hockey in gym class, Timmy is trying to send a plastic puck across the floorand into the goal. Which of the following best describes the forces acting on the plastic puck as it travels across the floor and into to the goal?
A.electromagnetic and gravity
B.gravity and friction
C.mechanical force and friction
D.magnetism and friction
Answer:
C. mechanical force and friction
Explanation:
Timmy's muscles are striking the puck through the stick. The force from the muscles moves the sick, which hits the puck. (EDIT) In addition, the puck is slowed as it travels across the floor, via friction.
Answer:
gravity and friction
Explanation:
If Jay pushes on a box with a force of 20N to the right and Bradley pushes on a box 15N to the left, what is the net force on the box?
Answer:
454665
Explanation:
Answer:
5N right
Explanation:
20-15=5
