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Irina18 [472]
3 years ago
15

Harvesting timber (wood) from a forest does not harm___________.

Physics
2 answers:
Nikitich [7]3 years ago
8 0
It does not harm the buildings or the cars in a nearby city. However, it does harm just about everything in the forest that's anywhere near the (former) tree.
Trava [24]3 years ago
6 0
Your answer would be soil. When you harvest timber (wood), you affect the wildlife around it, not the soil. Cutting down a tree won't make much of a difference to the soil underneath or around it.
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A tennis player swings her 1000 g racket with a speed of 10 m/s. She hits a 60 g tennis ball that was approaching her at a speed
Mashutka [201]

(a)

consider the motion of the tennis ball. lets assume the velocity of the tennis ball going towards the racket as positive and velocity of tennis ball going away from the racket as negative.

m = mass of the tennis ball = 60 g = 0.060 kg

v₀ = initial velocity of the tennis ball before being hit by racket = 20 m/s

v = final velocity of the tennis ball after being hit by racket = - 39 m/s

ΔP = change in momentum of the ball

change in momentum of the ball is given as

ΔP = m (v - v₀)

inserting the above values

ΔP = (0.060) (- 39 - 20)

ΔP = - 3.54 kgm/s

hence , magnitude of change in momentum : 3.54 kgm/s

7 0
3 years ago
What confirms that the process of seafloor spreading is occurring?
olga55 [171]
Mid ocean ridges
The mountain ranges in the middle of the oceans
Sea floor spreading
The process by which new, oceanic crust forms along a mid ocean ridge and older crust moves away from the ridge. :)
3 0
2 years ago
Define amoeba what are your plans ​
cupoosta [38]

Answer:

Amoeba (plural = amoebae) is a well known genus of unicellular organism, a protist. One of its most common species, the Amoeba Proteus, is about 0.2 to 0.3 mm large. The amoeba was first discovered by August Von Rosenhof in 1757.[1] It is a genus of protozoa that moves with false feet, called pseudopodia.

5 0
2 years ago
Read 2 more answers
What is the smallest separation between two slits that will produce a second-order minimum for 762 nm red light?
ipn [44]

Answer:

1524 nm.

Explanation:

Angular separation of n th minima is given by the expression

Sin θ = n λ / a

Where λ is wavelength of light used and a is separation between two slits .

a = n λ / sin θ

For a to be minimum, sinθ has to be maximum .

maximum value of sin of any angle is 1 .

so the relation becomes as follows

a = n λ

n = 2 , λ = 762 nm.

a = 2 x 762 nm

= 1524 nm.

3 0
3 years ago
A man pushes a lawn mower on a level lawn with a force of 186.5 N. If 3.8% of this
Paladinen [302]

Explanation:

The force is 186.5 N.  3.8% of the force is directed downward.  So the vertical component of the force is:

Fᵧ = 0.038 (186.5 N)

Fᵧ = 7.087 N

The horizontal component is found with Pythagorean theorem:

F² = Fₓ² + Fᵧ²

(186.5 N)² = Fₓ² + (7.087 N)²

Fₓ = 186.4 N

So the work done is:

W = Fd

W = (186.4 N) (7.4 m)

W = 1379 J

Round as needed.

4 0
3 years ago
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