Answer: True but not all activity
Explanation:
Answer:
A. True. But its not valid for everything
need help with this please
Answer:
It cannot be moving without any force pushing behind it as it is only slightly vibrating unless it is a liquid or a gas which in that case is consantly moving around.
Explanation:
PLS HELP!!!
Coral reefs are threatened by such atmospheric conditions as
A) the growing hole in the ozone
B) carbon dioxide emissions and global warming
C) increases in UV radiation and the amount of reflected light
D) increased particulate matter resulting in decreased UV rays
Pls give explanation behind if possible
Answer:
B
Explanation:
Carbon dioxide is resposible for the greenhouse effect
There are many uses for permanent magnets and temporary magnets like an electromagnet. Electric appliances with electric motors use magnets to turn electricity into motion. Other examples include electric toothbrushes, fans, lawnmowers, and anything else containing a motor.
Magnets are used to hold doors closed, such as in refrigerators, kitchen cabinets and others. Magnets are also used to read and write data on a computer's hard drive or on old-fashioned cassette tapes. There are more magnets in headphones and stereo speakers which help to turn stored music back into the sounds you can hear.
In summary, magnetism is another property of some kinds of matter. There are two poles to a magnet, the south pole and the north pole. Like poles repel and unlike poles repel. There are two different kinds of magnets, temporary and permanent. A temporary magnet can be made by using electricity. All magnets contain an invisible electromagnetic field which surrounds the magnet. There are many uses for magnets, from holding doors closed to helping music sound better with the magnets inside of speakers.
Based on the information provided above how would you describe a magnet?
Answer:
A magnet is a piece of metal with a strong attraction to another metal object. The attraction a magnet produces is called a "magnetic field."
This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, and so on. and attracts or repels other magnets.
Most magnets are made of iron, and magnets are used in many common items like cassette tapes, credit cards, toys, and compasses. Magnets are used to make a tight seal on the doors to refrigerators and freezers.
mag·net a peice of iron etc
an airplane of mass 50 tonnes is flying at a speed of 5 km\s at a height of 50 km above the ground. what is the total energy it has on reaching the ground
Answer:
sorry, but the Question at hand is to hard for my delicate mind
Explanation:
The __________________ is a network of cells and fibers that send messages to different parts of the body.
A.
endocrine system
B.
nervous system
C.
skeletal system
D.
muscular system
Answer:
Nervous System
Explanation:
By the way this is Biology not Physics!!!
Hope that I helped you!Answer:
B. Nervous system
Explanation:
Caleb is investigating the effect of friction on the motion of an object. He uses the following supplies for the investigation:
a wooden block
three ramps, each ramp is the same height and length but has a different surface (smooth wood, carpet, rough sandpaper)
a stopwatch
Caleb tests his hypothesis that the smooth wood ramp surface causes less friction than the carpet and that the carpet causes less friction than the rough sandpaper.
(THERE IS A PART "A,B,C")
PLS HELP!! YOU CAN SKIP THE INFO IF YOU WANT!!
When rain falls to the earth, it just doesn't sit there. Instead, the rain water starts moving. Some of the precipitation seeps into the ground to replenishing groundwater. However, most of it flows downhill as runoff. Runoff is important in filling rivers and lakes, but it also changes the landscape by erosion and can be a powerful mover. Flowing water is a powerful force, capable of moving boulders and carving out canyons. Runoff has an impact on streams and rivers, but it also has an impact on the ocean system. What can you infer about the impact of runoff on Ocean life? Choose ALL that apply.
A) Runoff drops a lot of sediment in the ocean, decreasing salinity.
B) Runoff builds up the coastline, depositing sediment, disrupting habitats of marine wildlife.
Runoff can lead to overgrowth of algae that can cause oxygen deprivation and create a dead zone.
C) Runoff carries pollutants into the ocean, causing illness and death of vulnerable marine populations.
D) Runoff can carry bacteria, viruses, and other pathogens from pet and livestock waste that can harm shellfish and other marine organisms.
Pls give explanation behind if possible
NO SPAM
Answer:
B,C,D
Explanation:
As a runoff flows over the land surface, stormwater picks up potential pollutants that may include sediment, nutrients (from lawn fertilizers), bacteria (from animal and human waste), pesticides (from lawn and garden chemicals), metals (from rooftops and roadways), and petroleum by-products (from leaking vehicles). Pollution originating over a large land area without a single point of origin and generally carried by stormwater is considered non-point pollution. In contrast, point sources of pollution originate from a single point, such as a municipal or industrial discharge pipe. Polluted stormwater runoff can be harmful to plants, animals, and people.
Hope this helps!
HELP!!! GIVING BRAINLIEST AND MANY POINTS!!!
Answer:
first and second photo
speed = distance/time
s = d/t
Segment:
A — 90/30 = 3 m/s
B — 120/60 = 2 m/s
C — 250/50 = 5 m/s
D — 120/40 = 3 m/s
E — 60/20 = 3 m/s
total distance = 90+120+250+120+60 = 640m (meters)
total time = 30+50+60+40+20 = 200 (seconds)
average speed = 640/200 = 3.2 m/s
Third photo:
route
A: travelled east 90 meters
B: travelled north 120 meters
C: travelled east 250 meters
D: travelled north 120 meters
E: travelled west 60 meters
speed for each segment was done in pictures 1 and 2
average speed for whole trip was done in pictures 1 and 2
velocities For route: (im Not completely sure)
A: 3m/s
B: 2m/s
C: 5m/s
D: 3m/s
E: -3m/s
Answer:
first and second photo
speed = distance/time
s = d/t
Segment:
A — 90/30 = 3 m/s
B — 120/60 = 2 m/s
C — 250/50 = 5 m/s
D — 120/40 = 3 m/s
E — 60/20 = 3 m/s
total distance = 90+120+250+120+60 = 640m (meters)
total time = 30+50+60+40+20 = 200 (seconds)
average speed = 640/200 = 3.2 m/s
Third photo:
route
A: travelled east 90 meters
B: travelled north 120 meters
C: travelled east 250 meters
D: travelled north 120 meters
E: travelled west 60 meters
speed for each segment was done in pictures 1 and 2
average speed for whole trip was done in pictures 1 and 2
velocities For route: (im Not completely sure)
A: 3m/s
B: 2m/s
C: 5m/s
D: 3m/s
E: -3m/s
Explanation:
How is the levitation of the SCMagLev train achieved? Just write a sentence.
Answer:
The SCMaglev (superconducting maglev, formerly called the MLU) is a magnetic levitation (maglev) railway system developed by Central Japan Railway Company (JR Central) and the Railway Technical Research InstituteAnswer:
In the case of passive levitation, the levitating-effect is achieved by speed.
Explanation:
what's a good conclusion for these three paragraphs? it's a science essay and due in thirty minutes!!
Answer:
you can write this
Explanation:
as a conclusion, newton have 3 laws of motion, law of intertia, low of force and motion and law of action and rection
In which layer of the atmosphere is the ozone layer located?
Answer: im pretty sure its the stratosphere.
Explanation:
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Answer:
Yes.
Explanation:
Sarah and Charlie both investigated the properties of rocks they found while on a walk. Take a look at the table with their observations. What was the difference between the two sets of observations?
Sarah's Observations Charlie's Observations
The mineral was metallic. The mineral was non-metallic.
The mineral had cleavage. The mineral did not have cleavage.
The mineral was red. The mineral was red.
The mineral had luster. The mineral had luster.
a Sarah observed that the mineral was metallic and red.
b Charlie observed that the mineral was red and had luster.
c Sarah observed the mineral had cleavage and was metallic.
d Charlie observed the mineral was non-metallic and had luster.
Answer:
b
Explanation:
Answer: C. Sarah observed the mineral had cleavage and was metallic.
Explanation: The answer is C because the question is asking about the difference in their observations. Sarah claimed the mineral had cleavage and was metallic, while Charlie said the opposite.