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Sav [38]
3 years ago
5

Which of these is a chemical control used to help control invasive species?

Physics
1 answer:
astraxan [27]3 years ago
4 0

Answer:

a

Explanation:

Using fences.................................

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There are four stages in an economic recovery. In which order do these stages occur
Klio2033 [76]

The answer is 2,1,3,2

1. increased production 2. rising demand (occurs twice) 3. increased hiring

hope this helps :)

7 0
3 years ago
Please someone please help me out
Alexus [3.1K]
You should move this to Biology. Sorry I can't give you an answer though. Its been years since I have taken Biology.
If I had to guess though I would think the answer would be B. Take that with a grain of salt though.
3 0
3 years ago
Read 2 more answers
You are on vacation in San Francisco and decide to take a cable car to see the city. A 5800-kgkg cable car goes 260 mm up a hill
Stella [2.4K]

Answer:

4.325\times10^6J

Explanation:

Mass of the cable car, m = 5800 kg

It goes 260 m up a hill, along a slope of \theta=17^o

Therefore vertical elevation of the car = 260sin\theta=260sin17^o=76.0166m

Now, when you get into the cable car, it's velocity is zero, that is, initial kinetic energy is zero (since K.E. = \frac{1}{2} mv^2). Similarly as the car reaches the top, it halts and hence final kinetic energy is zero.

Therefore the only possible change in the cable car system is the change in it's gravitational potential energy.

Hence, total change in energy = mgh = 5800\times9.81\times76.0166J=4.325\times10^6J

where, g = acceleration due to gravity

h = height/vertical elevation

4 0
3 years ago
An ostrich can run at speeds of up to 72 kilometers per hour. How long will it take an ostrich to run 1.5 kilometers at this top
tatiyna
S=d/t
T=d/s
= 1.5/72
= 0.02 hours
6 0
3 years ago
You are conducting an experiment inside a train car that may move along level rail tracks. A load is hung from the ceiling on a
Triss [41]

Here the weight is hung from the thread inside the ceiling of train

now the FBD of train is analysed

We can say

Tcos\theta = mg

Tsin\theta = ma

now by ratio of two equations we have

a = gtan\theta

this shows that train must be in accelerating condition due to which the thread is making an angle with the vertical

now we will have

2 The train is not an inertial frame of reference.

Since train is accelerating so it must be non inertial frame

5 The train may be moving at a constant speed in a circle.

Since its moving in circle so it is in accelerating condition

8 The train must be accelerating.

3 0
3 years ago
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