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jekas [21]
3 years ago
3

What is the average acceleration of the particle between 0 seconds and 4 seconds?

Physics
1 answer:
mariarad [96]3 years ago
5 0
Thats a wonderful question!!

The answer is c                                               

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Two wires, both with current out of the page, are next to one another. The wire on the left has a current of 1 A and the wire on
Soloha48 [4]

Answer:

C. The left wire attracts the right wire and exerts as much force as the right wire does.

Explanation:

To know what is the answer you first take into account the magnetic field generated by each current, for a distance of d:

B_1=\frac{\mu_oI_1}{2\pi d}=\frac{\mu_o}{2\pi d}(1A)\\\\B_2=\frac{\mu_oI_2}{2\pi d}=\frac{\mu_o}{2\pi d}(2A)=2B_1\\\\

Next, you use the formula for the magnetic force produced by the wires:

\vec{F_B}=I\vec{L}\ X \vec{B}

if the direction of the L vector is in +k direction, the first wire produced a magnetic field with direction +y, that is, +j and the second wire produced magnetic field with direction -y, that is, -j (this because the direction of the magnetic field is obtained by suing the right hand rule). Hence, the direction of the magnetic force on each wire, produced by the other one is:

\vec{F_{B1}}=I_1L\hat{k}\ X\ B_2(-\hat{j})=I_1LB_2\hat{i}=(2A^2)\frac{L\mu_o}{2\pi d}\hat{i}\\\\\vec{F_{B2}}=I_2L\hat{k}\ X\ B_2(\hat{j})=I_2LB_1\hat{i}=-(2A^2)\frac{L\mu_o}{2\pi d}\hat{i}

Hence, due to this result you have that:

C. The left wire attracts the right wire and exerts as much force as the right wire does.

6 0
4 years ago
What is the potential energy of a one kilogram box of chocolates hidden on a
sveta [45]

Answer:

um it well it will be 19.6 d) 9.8 J

Explanation:

7 0
3 years ago
Read 2 more answers
If there was no gravity acting on the object and it was launched at an upwards angle of 30 degrees, explain its path.
matrenka [14]
C. Generally, gravity is the only force acting on a projectile (causing it to fall down towards the earth). If you took this away, it would have no forces acting on it and, according to Newton's 1st law of inertia, it would continue moving indefinitely
4 0
3 years ago
How does sea floor spreading provide an explanation for how continents may move over earths surface?(I know this isn't Physics,
Neporo4naja [7]
Alfred Wegner first proposed the idea that all the seven continents were once one super continent called "Pangea". Everyone considered his idea as a joke until he proved his theory with evidence of matching fossils, matching mountain ranges, and how all the continents fit together like puzzle pieces. Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Seafloor spreading helps explain continental drift in the theory of plate tectonics.
3 0
3 years ago
When a spring is compressed 2.50 × 10^–2 meter
kompoz [17]
     The working of a spring is given by:

T_{el}= \frac{k\Delta x^2}{2}
 
     Entering the unknowns, we have:

T_{el}=\frac{k\Delta x^2}{2} \\ 1.25*10^{-2}*2*J=k(2.5*10^{-2}m)^2 \\ k= \frac{2.5*10^{-2}*J}{(2.5*10^{-2}m)^2} \\ k=40* \frac{J}{m^2} \\ k=40 \frac{N*m}{m^2}  \\ \boxed {k=40* \frac{N}{m} }
 
If you notice any mistake in my english, please let me know, because i am not native.
4 0
3 years ago
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