A bend in a river shaped like a loop is called a(n) ________________

Physics

2 answers:

Llana [10]3 years ago

8 0

This loop-like bend in a river is called a meander

babymother [125]3 years ago

5 0

Meander

I think that would be it.

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A 6.41 $\mu C$ particle moves through a region of space where an electric field of magnitude 1270 N/C points in the positive $x$

Marat540 [252]

Answer:

The particle's velocity is 212.15 m/s.

Explanation:

Given that,

Charge of particle, $q=6.41\ \mu C=6.41\times 10^{-6}\ C$

The magnitude of electric field, E = 1270 N/C

The magnitude of magnetic field, B = 1.28 T

Net force, $F=6.4\times 10^{-3}\ N$

We need to find the magnitude of the particle's velocity. the net force acting on the particle is given by Lorentz force as :

$F=qE+qvB\\\\v=\dfrac{F-qE}{qB}\\\\v=\dfrac{6.4\times 10^{-3}-6.41\times 10^{-6}\times 1270}{6.41\times 10^{-6}\times 1.28}\\\\v=-212.15\ m/s$

So, the particle's velocity is 212.15 m/s.

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3 years ago

Just for fun, a person jumps from rest from the top of a tall cliff overlooking a lake. in falling through a distance h, she acq

RideAnS [48]

For this we need to use several formulas:
v = a*t
This simply means that after 1 second we will have some speed and if we double time, speed will double as well.

But, relation time-traveled distance isn't linear. Traveled distance we calculate:
s = 1/2*a*t^2 we can say that h=s
so if we double time, traveled distance will increase 4 times because of square relation between time and traveled distance.

New traveled distance (h2) will be: h2=4*h

b) Because distance depends on gravity acceleration in free fall h2 will certainly change but the relation h2=4*h will remain the same.

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3 years ago

Three point charges are placed at distances of d , 2 d , and 3 d from a point P. The particle that is 2 d away from P has a char

mel-nik [20]

Answer:

at d the charge will be 3q and at 3d it will be 9q

Explanation:

for V=Vp-V2d

V=KQ/d=K*6q/2d=3kq/d for potential to 2d at 6q be zero the Vp will equal 3kq/d; hence at d, Q=3q and at 3d, Q=9q

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3 years ago

Which of the following changes will always increase the efficiency of a thermodynamic engine? Choose all correct statements.