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slava [35]
3 years ago
12

Help a girl out ?! Plz ill give brainlest

Physics
2 answers:
shepuryov [24]3 years ago
5 0

Answer:

I am pretty sure it is B.

Explanation:

I hope this helped if it didn't I am truly sorry

Rashid [163]3 years ago
3 0

Answer: A.

Explanation: If you move it from A to D look closely its a straight line.

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What is the time period of a simple harmonic oscillator with a mass of 0.3kg and a force constant of 5N/m?
ikadub [295]

Answer: 6N/m

Explanation:

8 0
3 years ago
What if water didnt have a negative charge?
ArbitrLikvidat [17]
The water molecule, as a whole, has 10 protons and 10 electrons, so it is neutral. ... The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
8 0
3 years ago
Light strikes a 5.0-cm thick sheet of glass at an angle of incidence in air of 50°. The sheet has parallel faces and the glass h
xxMikexx [17]

Answer:

30.81°

Explanation:

θ₁ = angle of incidence = 50°

θ₂ = Angle of refraction

n₂ = Refractive index of glass = 1.5

n₁ = Refractive index of air = 1.0003

From Snell's Law

Using Snell's law as:

n_1\times {sin\theta_1}={n_2}\times{sin\theta_2}

1.0003\times {sin50}={1.50}\times{sin\theta_2}

Angle of refraction= sin⁻¹ 0.5122 = 30.81°.

3 0
4 years ago
1. A 12 kg barrel is pulled up by a rope. The barrel accelerates at 1.2 m/s2. Find the force exerted by the rope. Show all your
allochka39001 [22]
F-mg=ma
F-(12kg)(9.8m/s^2)=(12kg)(1.2m/s^2)
F-117.6N=14.4N
F=132 Newtons 
5 0
4 years ago
The electric field in a region of space has the components Ey = Ez = 0 and Ex = (4.00 N/C · m) x. Point A is on the y axis at y
igor_vitrenko [27]

Answer:

   V_{b}-V_{a} = -38.72

Explanation:

Consider the axis diagram attached.

Given:

                                        Ey = Ez = 0

                                       Eₓ = - 4x N/C · m

Since electric field is in x direction, potential difference would be:

              V_{b} - V_{a} =-\int\limits^{4.40}_{0} {E_{x} } \, dx

Here we integrate between limits 0 and 4.40 which is distance between A and B along x-axis.  

              V_{b} - V_{a} = -4 \left[\begin{array}{ccc}\frac{x^{2} }{2} \end{array}\right]^{4.40}_{0}

                       V_{b}-V_{a} = -4 (9.68)\\V_{b}-V_{a} = -38.72

5 0
3 years ago
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