Answer:
I think it is 80m/s
Explanation:
d = ½ g t2
= ½ (10 m/s2) (4 s)2
= (5 m/s2) (16 s2)
= 80 ms
75% sure
Hope this helps!!!
1. Sketch a picture of the components of a galaxy. Write the name of our galaxy as the title of your drawing.2. Investigation3. Ervin is a current 5th grade student. One weekend he went on a trip to the beach with his family. After arriving at the beach, his mother put sunscreen on him to protect him from the Sun. Ervin and his older brother decided to go swimming in the ocean. While swimming his brother pointed out how large the Sun appeared. Later in the day, the Sun was covered up by dark clouds. When the Sun got covered, Ervin decided to stop swimming.At school on Monday, Ervin’s class was learning about the Sun. Ms. Chabert, his teacher, posed 3 questions to the class. Ervin was excited because he was able to use what he learned about the Sun at the beach to answer each question correctly. Use what YOU know about the Sun to answer the questions that Ervin’s teacher posed to the class. Answer in complete sentences please.A. Is the Sun a star?B. Why does the Sun appear large and bright?C. Is the Sun the largest star in the sky?D. What types of energy does the Sun give off?E. How does energy help us on a daily basis?
The energy of a machine that is transformed into heat:
is destroyed
can always be used for additional work
usually cannot do any further work
can be transformed back into mechanical energy
the correct answer is A: is destroyed
Biodiversity affects the sustainability of an ecosystem by —
A. always increasing competition for limited resources within the ecosystem.
B. allowing the ecosystem to survive many changes.
C. preventing the ecosystem from surviving many changes.
D. always decreasing competition for limited resources within the ecosystem.
Answer:
A.
Explanation:
A great variety of Gene's and species means that the ecosystem is better able to carry out natural processes in the face of external stress. Thus, the ecosystem is more sustainable
Which of these diagrams is a convex mirror?
Answer:
Which of these diagrams is a convex mirror?
Explanation:
iT was the first pic..edge 2021
Answer:1st one
Explanation:
Right on edge
The graph below plots the temperature and luminosity of stars on the main sequence. (2 points)
Four locations (A, B, C and D) are graphed on a curve representing luminosity vs temperature. The curve begins are high luminosity and high temperature decreasing in luminosity and temperature as it approaches the right side of the curve. From left to right are points representing Location A, Location B, Location C and Location D.
At what location is the star with the least initial mass most likely to be found?
Location A
Location B
Location C
Location D
Answer:
location A
Explanation:
Mixing chemicals in a cold pack creates a reaction that:
absorbs heat
destroys heat
releases cold
none of the above
Answer:
Absorbs heat!! Im sorry if it isn’t correct but yeah
Explanation:
Which of these statements best describes a possible environmental consequence in constructing a large-scale wind farm to generate electricity?
Answer:
es muy difícil no puedo xddddd
Explanation:
jsjskkskskskkskskw
Science Class:
Question 1: A) Which state(s) of matter have a fixed shape? B)A fixed volume?
Question 2: A) Rank the states of matter from most kinetic energy of the particles to least B) Rank from most particle spacing to least
As a Sun-sized star dies, it puts on an exquisite show, shedding its outer layers into space. How long does this process last?
Thousands of years
Billions of years
Millions of years
An unknown amount of time
Help please ♀️ I’m stuck
Answer:
b i guess i mean i dont have much to go off of so imma say b
hope this helps have a great day :)
Answer:
Energy
Explanation:
Which statement would be an example of a climate report for Texas?
a. The average annual temperature in San Antonio is 20°C.
b. There is a good chance that severe thunderstorms will move through Dallas late tonight.
c. Tomorrow will be the hottest day of the year for residents of Houston.
d. People in Galveston can expect the temperature to drop into the low 60s later in the week
Which of the following will most likely be a sustainable environment?
A. An environment with a small variety of plants and animal species
B. An environment with a large variety of plant and animal species
C. An environment with many plant species but with only a few animal species
D. An environment with many animal species but with only a few plant species
Answer:
I think A
Explanation:
What is a bright streak of light that results from a space rock burning in earth’s atmosphere?
A.
Meteor
B.
Asteroid
C.
Meteorite
D.
Meteoroid
Answer:
A
Explanation:
A meteor is a streak of light in the sky caused by a meteoroid crashing through Earth's atmosphere. Meteoroids are lumps of rock or iron that orbit the sun. Most meteoroids are small fragments of rock created by asteroid collisions. Comets also create meteoroids as they orbit the sun and shed dust and debris.
When sodium and chlorine are mixed:
nothing happens
heat and light are released
heat is absorbed from the environment
The correct answer is B: heat and light are released.
How should a line look like if an object is at rest(stopped) on a distance-time graph?
10 is all i have
If an object is at rest, then its distance doesn't change as time goes on.
On the graph, the points for each time are all at the same distance. They form a horizontal line.
Someone pls help with only if you know correct answer!???
Two Bullard balls collided. One was stationary. The other was moving at a velocity of 5 m/sec. The mass of the billiard ball is 0.15kg. The momentum that was transferred to the second ball was___.
A. 0.75 kgxm/sec
B. 33 kgxm/sec
C. 0.03 kgxm/sec
D. 7.5 kgxm/sec
6. When green, blue and red lights flash together what color do you see?
7A. ____________________ means to bounce off, and ____________________ means to take in or soak in .
7B. When no light was reflected from the object to your eyes, what color did you see? __________________________
7C. In order for you to see anything, _____________________ has to reflect (bounce) from the object to your eye.
7D. A red card reflects ________________________ back to your eyes and absorbs what colors?
Answer:
6. When green, blue and red lights flash together what color do you see? White.
7A. __Reflect________ means to bounce off, and _____absorb________ means to take in or soak in .
7B. When no light was reflected from the object to your eyes, what color did you see? ____Black_____________
7C. In order for you to see anything, ___light_______ has to reflect (bounce) from the object to your eye.
7D. A red card reflects ____red__________ back to your eyes and absorbs what colors? Blue and green.
Explanation:
hope this helps :)