Answer:
(a) W = 8.66 J
(b) Velocity = 2.40 m/s
Explanation:
(a) Work done is given as the product of force and displacement. That is:
W = F * d * cos(A)
Where F = force applied
d = distance moved
A = angle of ramp
Therefore, work done is:
W = 20 * 0.5 * cos30
W = 8.66 J
(b) Work done is equal to change in Kinetic energy. Since the initial kinetic energy is zero:
W = KE(final)
W = ½ * m * v²
Where v = final velocity
=> 8.66 = ½ * 3 * v²
v² = 5.773
v² = 2.40 m/s
Arboreal
Explanation:
The best term that describes the habitat of bats is arboreal.
The habitat of an organism is its dwelling place in nature. This encompasses the role it plays in the ecosystem.
- Bats spends most of their life time hanging down on trees.
- They are blind flying mammals.
- Animals that lives in trees and trunks are said to be arboreal.
- Other examples are koalas, primates, sloths, spider monkeys, leopards, chameleons etc.
- These animals are adapted for life in tree trunks.
- The have modified body parts that makes them thrive in such habitats.
learn more:
Interactions in the ecosystem brainly.com/question/2321688
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The answer is B: it has made repetitive tasks easier
Answer:
C. 2.0 cm
Explanation:
The magnetic field around the wire at point M is given by Biot-Savart Law:
where,
B = Magnetic field = 50 μT = 5 x 10⁻⁵ T
I = current = 5 A
μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²
R = distance of point M from wire = ?
Therefore,
R = 0.02 m = 2 cm
Hence, the correct option is:
<u>C. 2.0 cm</u>
