The electromagnetic wave shown above is made of vibrating
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I assume this is why electromagnetic waves can travel through a vacuum, due to lack of matter.
Answer:
Electromagnetic waves are transverse waves that consist of a combined magnetic and electric effect.
Explanation:
wth :^)
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If a basketball travles a distance of 4 meters in 5 seconds whst is the average speed
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When car tires are on hot pavement for too long, the pressure inside will ___________ and the volume within the tire will _____________. A) increase; decrease due to deflation B) decrease; remain unchanged C) increase; increase and possibly result in a blowout D) increase; remain unchanged as long as the temperature is constantly rising
three places magnets are threatening toy cars as shown below then Jerry measures how far is car rolls when she launches it from the same starting point using the same stretched rubber band how will the force of the rubber band affect the cars
Answers
Momentum = (mass) x (speed)
Divide each side by (speed): Mass = (momentum) / speed
Mass = (45,000 kg-m/s) / (30 m/s) =
1,500 kg .
Answer: Momentum = (mass) x (speed)
Divide each side by (speed): Mass = (momentum) / speed
Mass = (45,000 kg-m/s) / (30 m/s) =
1,500 kg .
Explanation:
B) boiling point, volume
C) flammability, volume
D) melting point, reactivity with water
Plz answer this question quickly, it’s really important
Answers
I believe the correct answer is D. melting point, reactivity with water.
Answers
Answer:
This is because of the first Newton's law:
If an object is at rest or at moving with constant velocity, it will remain doing that untill a force is applied on the object.
Now, if the car is still, and then it speeds, the box will want to keep the movement that it was doing before, so it will slide in the seat until the box gets the same speed as the car (this can happen when the box hits the back of the seat, and the back of the seat "pushes" the box)
Now, the same happens when the car stops, now the box has a velocity and when the car stops the box will keep moving forward, because there is no force that stops the box.
B They evolve more quickly than native species.
C They have higher reproductive rates than native species.
D They have no population controls such as predators.
Answers
Answer:
Option (C)
Explanation:
Invasive species usually refer to those species that are new to an ecosystem and cause a great impact on the native species. It also affects the ecosystem, economy and the health of human beings. Examples of some invasive species are zebra mussels, killer algae, green crab and Asian carp.
These species are much stronger than the native species and they have the ability to grow at a much faster rate, increasing their population. This increasing rate of population creates a problem for them to survive in a new location.
Thus, the most appropriate answer is option (C).
Answer:
D
Explanation:
The other species had evolved to be able to survive the predators of the area over the years
16 km north.
11 km west.
6km south.
2 km south
Answers
Answer:
The displacement = 2 km south.
Explanation:
Given:
Displacement vectors.
- (i) Of 4 km south.
- (ii) 2 km north.
- (iii) 5 km south.
- (iv) 5 km north.
Total displacement :Displacement is the shortest distance from the initial point of any vector.
We have to work this in a Cartesian co-ordinate where we have y axis as North and South (negative y-axis).
Lets move 4 km towards south that is 4 units on negative y-axis.
The points will be .
Now move 2 km upward (towards north) that is toward positive y-axis.
So the points are .
From here again 5 km downward (towards south).
Points of the co-ordinates are .
Finally move 5 km upwards (towards north).
Points of the Cartesian are .
So (0,-2) means that the displacement vector is toward south and is 2 km way from the origin that is .
Total displacement is of 2 km in south.