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Lady_Fox [76]
4 years ago
15

What does this symbol mean? I need to know so I can prepare for Monday....

Physics
1 answer:
Free_Kalibri [48]4 years ago
5 0
<span>This symbol is a square. it has 4 equal sides that are all congruent. each side of the symbol has a 90 degree angle. all the sides are adjacent and equal eachout. the symbol is vetical. it can be called polygon or convex.</span>
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A wire is wrapped multiple times around a galvanized or aluminum nail and then each end of the wire connected to a battery for s
galina1969 [7]
Its A The paper clip is repelled away from the nail because an electromagnetic field magnetized to the nail
6 0
4 years ago
Read 2 more answers
Which statement describes the energy transformation that occurs when a person eats a sandwich to gain energy for a long hike?
ikadub [295]

Answer:

D

Explanation:

chemical energy in food is used for hiking which is kinetic energy

5 0
3 years ago
Which therapies are associated with ultrasound? Check all that apply.
goldenfox [79]

Answer:

Need a picture

-Malignant tissue

-Over the lower abdomen

-during pregnancy

-Over an infection

Explanation:

IDK if this helps bc there is no picture, but here ya go

3 0
4 years ago
A cosmic ray muon with mass mμ = 1.88 ✕ 10−28 kg impacting the Earth's atmosphere slows down in proportion to the amount of matt
anyanavicka [17]

Answer:

a. the magnitude of the force experienced by the muon is 2.55 × 10⁻¹⁹N

b.  this force compare to the weight of the muon; the force is 1.38 × 10⁸ greater than muon

Explanation:

F= ma

v²=u² -2aS

(1.56 ✕ 10⁶)²=(2.40 ✕ 10⁶)²-2a(1220)

a=1.36×10⁹m/s²

recall

F=ma

F = 1.88 ✕ 10⁻²⁸ kg × 1.36×10⁹m/s²

F= 2.55 × 10⁻¹⁹N

the magnitude of the force experienced by the muon is 2.55 × 10⁻¹⁹N

b.  this force compare to the weight of the muon

F/mg= 2.55 × 10⁻¹⁹/ (1.88 ✕ 10⁻²⁸ × 9.8)

= 1.38 × 10⁸

6 0
3 years ago
I'm very confused. Thanks for whoever helps me :)
sergij07 [2.7K]
(C). Remember gravity provides an acceleration of 9.81m/s^2, so the y component of velocity initial is zero because it isn’t already falling, and we have the height, so basically we use the kinematic equation vf^2=vi^2+2ad, substitute given values and you get vf^2=2(9.81)(65) which is 1275, when you take the square root you get 35.7m/s for final velocity
(B). Then you use vf=vi+at to get the equation 35.7=(9.81)t, when you divide out you get 3.64s for time t
(A). Finally, since we assume that there is no acceleration or deceleration horizonatally, we just multiply the time taken for it to hit the ground and the initial speed ((3.64)(35.7)) to get 129.96, with significant figures I would round that to 130 metres.
**this is in the order that I felt was easiest to answer**
6 0
3 years ago
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