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Finger [1]
4 years ago
9

Suppose that, from measurements in a microscope, you determine that a certain bacterium covers an area of 1.50 μm2. Convert this

to square meters.
Physics
1 answer:
Paladinen [302]4 years ago
8 0
1 m = 1 000 000 ym

converted other way we can say that:

1 ym = 10^{-6} m

Now, since we have ym^2 which is ym*ym which means:
1 ym^2 = (10^{-6}) ^2  =  10^{-12} m

we have 1,5 ym^2 which means that answer is:
1.5* 10^{-12} m
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A block slides forward 4.73 m while being pulled back by a 39.7 N force at 142° from the direction of motion. How much work does
lubasha [3.4K]

Answer:

work done by the force, W = -147.97 J

Given:

displacement of the box, s = 4.73 m

angle between force and displacement, \theta = 142^{\circ}

Force, F = 39.7 N

Solution:

Work done by the force can be expressed as the dot product of Force, F and displacement 's' is given by:

W = Fscos\theta

W = 39.7\times 4.73\times cos142^{\circ}

W = -147.97 J

where negative sign indicates that work is done on the block

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4 years ago
WILL GIVE BRAINLEST!!
polet [3.4K]
I think the answer is c
7 0
4 years ago
What Type of relationship exists between the Temperature of a Star and the Wavelength of a Star?
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It is an inversely proportional relationship.
3 0
4 years ago
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What type of force slows you down as you slide across the floor?
Juli2301 [7.4K]
Answer:
B-Friction

How?
Friction is when two surfaces rub against each other. This creates heat and resistance. It would only make sense that this force would slow you down will sliding across floors
6 0
3 years ago
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At the equator, near the surface of Earth, the magnetic field is approximately 80.0 μT northward and the electric field is about
lys-0071 [83]

Answer:

Gravitational force = 89.18 x 10^-31 N

Electric force = 2.4 x 10^-17 N

Magnetic force = 7.68 x 10^-17 N

Explanation:

B = 80 micro tesla = 80 x 10^-6 T  north

E = 150 N/C downward

v = 6 x 10^6 m/s east

Gravitational force = m g = 9.1 x 10^-31 x 9.8 = 89.18 x 10^-31 N

Electric force = q E = 1.6 x 10^-19 x 150 = 2.4 x 10^-17 N

Magnetic force = q v B Sin 90 = 1.6 x 10^-19 x 6 x 10^6 x 80 x 10^-6

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8 0
3 years ago
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