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weeeeeb [17]
3 years ago
8

Can someone help with these/

Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Three

Right Hand Rule

The index finger points in the direction of v

The electric field is designated by the the thumb

The middle finger is B

Paint these directions on your fingers (and thumb).

Using your right hand, B is point out of the page. Your fingers are mutually perpendicular.

Which ever answer says out of the page, is the answer. B

Four

Many critters like dogs are color blind. Those poor unfortunates see only gray. We have a wider range. Our eyes do see color (visible light) but we are not limited. The correct answer is B. We can make devices that respond to visible light like lasers so in effect they are "seeing" visible light. The answer is B.

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Two friends leave a movie theater and take different busses to the same ice cream shop. One bus takes a longer route driving on
lisov135 [29]

Answer: short displacement has shorter road and long displacement has longer displacement . now think your self Which one is right

6 0
3 years ago
Match these items.
viva [34]
-- 'Ca' (Calcium) is an element.
-- The proton has a positive charge.
-- Nuclear fusion results in the synthesis of atoms of new elements.
-- H₂O (water) is a chemical compound. 
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-- The atomic number of an element is the number of protons 
      in each atom of it.
-- I suppose you're using the Greek letter  <span>η  ('eta', not 'nu') 
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6 0
3 years ago
Read 2 more answers
a 2.35 water bucket is swung in a full cirlce of radius 0.824 m just fast enough so that the water doesn't fall out the top mean
tiny-mole [99]

Answer:

2.84 m/s

Explanation:

At the top position of the circular trajectory, the normal reaction is zero:

N = 0

So it means that the only force that is providing the centripetal force is the gravitational force (the weight of the bucket). Therefore we have:

mg = m \frac{v^2}{r}

where

m is the mass of the water bucket

g = 9.8 m/s^2 is the acceleration of gravity

v is the speed of the bucket

r = 0.824 m is the radius of the circle

Solving for v,

v=\sqrt{gr}=\sqrt{(9.8 m/s^2)(0.824 m)}=2.84 m/s

4 0
3 years ago
ITS TIMED PLEASE HELP !!!!!
dusya [7]

Answer: direct linear

Explanation:

3 0
3 years ago
g The international space station has an orbital period of 93 minutes at an altitude (above Earth's surface) of 410 km. A geosyn
krok68 [10]

Answer:

r = 4.21 10⁷ m

Explanation:

Kepler's third law It is an application of Newton's second law where the forces of the gravitational force, obtaining

            T² = (\frac{4\pi }{G M_s} ) r³             (1)

           

in this case the period of the season is

            T₁ = 93 min (60 s / 1 min) = 5580 s

            r₁ = 410 + 6370 = 6780 km

            r₁ = 6.780 10⁶ m

for the satellite

           T₂ = 24 h (3600 s / 1h) = 86 400 s

if we substitute in equation 1

            T² = K r³

            K = T₁²/r₁³

            K = \frac{ 5580^2}{ (6.780 10^6)^2}

            K = 9.99 10⁻¹⁴ s² / m³

we can replace the satellite values

            r³ = T² / K

            r³ = 86400² / 9.99 10⁻¹⁴

            r = ∛(7.4724 10²²)

            r = 4.21 10⁷ m

this distance is from the center of the earth

7 0
3 years ago
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