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alekssr [168]
3 years ago
11

If you drew magnetic field lines for this bar magnet, which statement would be true

Physics
2 answers:
faltersainse [42]3 years ago
4 0
Arrows point away from north and toward south.

and

Field lines loop around the magnet starting at the north pole and ending at the south pole.
serious [3.7K]3 years ago
4 0
Field lines correct for future weiins

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Which is NOT a waste that is removed from the body by the excretory system?
oksian1 [2.3K]

Answer:

C. Blood

Explanation:

All the other ones are removed from the body normally.

8 0
3 years ago
Read 2 more answers
Desde una altura de 120 m se deja caer un cuerpo. Calcular a los 2,5 s i) la rapidez que lleva; ii) cuánto ha descendido; iii) c
stira [4]

Answer:

i) 24.5 m/s

ii) 30,656 m

iii) 89,344 m

Explanation:

Desde una altura de 120 m se deja caer un cuerpo. Calcule a 2.5 s i) la velocidad que toma; ii) cuánto ha disminuido; iii) cuánto queda por hacer

i) Los parámetros dados son;

Altura inicial, s = 120 m

El tiempo en caída libre = 2.5 s

De la ecuación de caída libre, tenemos;

v = u + gt

Dónde:

u = Velocidad inicial = 0 m / s

g = Aceleración debida a la gravedad = 9.81 m / s²

t = Tiempo de caída libre = 2.5 s

Por lo tanto;

v = 0 + 9.8 × 2.5 = 24.5 m / s

ii) El nivel que el cuerpo ha alcanzado en 2.5 segundos está dado por la relación

s = u · t + 1/2 · g · t²

= 0 × 2.5 + 1/2 × 9.81 × 2.5² = 30.656 m

iii) La altura restante = 120 - 30.656 = 89.344 m.

6 0
3 years ago
A magnet has ___________ poles. Like poles__________each other and unlike poles __________. An electromagnet is used to separate
Stels [109]

Answer:

2 repel attracts light water

3 0
3 years ago
Read 2 more answers
Consider a block of mass m attached to two springs, one on the left with spring constant k1 and one on the right with spring con
Andrew [12]

Answer:

T= 2\pi\times sqrt(m/(k1+k2))

Explanation:

When the block is displaced by x units

F= spring force

two springs are connected parallel

F =-k_1x - k_2x

Writing Newtons second law, F = ma

-k_1x - k_2x =ma

-k_1x - k_2x = mx''

a= x" ( differentiating x w.r.t time twice)

x''+(k_1/m + k_2/m) x=0

this the standard form of equation of oscillation spring mass system

This is the differential equation, x'' means that double differentiation of x , i.e, x'' is acceleration

since,  Period T=2\pi\sqrt{\frac{m}{K_{eq.}} }

therefore,

T= 2\pi\times sqrt(m/(k1+k2))

3 0
3 years ago
Moving with a speed of v km/hour, a train travels the distance between the points A and B, which is 600 km, in t hours. Find the
NARA [144]
<h2>Formula which describes v in terms of t is v=\frac{600}{t}km/hr</h2>

Explanation:

A train travels the distance between the points A and B, which is 600 km

Distance between A and B = 600 km

Speed of train = v

Time taken by train = t

We know that

              Distance traveled = Speed of travel x Time taken

              600 = v x t

               v=\frac{600}{t}km/hr

Formula which describes v in terms of t is v=\frac{600}{t}km/hr

3 0
3 years ago
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