Answer:
1. D
2.C
3. A
4. B
5. D
I tried my best hopefuly you get good grade :)
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.
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
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.
Learn more about Force here:
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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:
have u ever wanted to just sleep all day and night
Answer:
yes ofc
Explanation:
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.
No links, i will report any absurd answers. Make it a paragraph please- ill give branliest to the best answer
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:
Calculate the energy transferred by a 12V hairdryer, running on a current of 0.50A, that is left on for 8.0 minutes.
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