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3 years ago

1. Where is the magnetic field most nearly uniform?

Physics

2 answers:

goldenfox [79]3 years ago

7 0

One

A wire carrying a current creates a circular field. Not A.

B is pretty uniform. I would pick it.

C The lines bend around the north and south poles. Not C

D Same Remark as C.

Two

The force exerted by the magnetic field is the palm of your right hand.
Your thumb is the direction of the charged stream
The fingers are the direction of B which I take to be into the page.

If all these are in agreement with what you think you have been given then A is the correct answer. The proton will be defected in the direction of the palm.

Three

As stated in One the fingers point in the direction of B, The thumb is the direction of the charge and the palm is the direction of the force when the item is a plus charge. When the travelling charge is minus as this one is, use the back of your hand. In that case, The electron will be deflected downward. This assumes the Magnetic field is pointing into the page.

The answer is A.

lakkis [162]3 years ago

6 0

Answer: did you happen to get the rest of the answers? I’m struggling

Explanation:

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mihalych1998 [28]

Tycho Brahe ( 1546 - 1601 ) was a Danish astronomer known for his accurate astronomical and planetary observations. Tycho tried to produce a model with the best of both Ptolemy ( earth-centered solar system ) and Copernicus ( sun-centered solar system ).
Answer: B ) observation.

3 0

3 years ago

The power dissipated in a resistor is given by P = V 2 / R , which means power decreases if resistance increases. Yet this power

klasskru [66]

Answer:

Explanation:

Power Dissipated in a resistor is given by two methods i.e.

$P=\frac{V^2}{R}$ and

$P=I^2\cdot R$

where $V=Potential\ difference$

$R=resistor$

$I=current$

both formula gives Power but Former is used when voltage is constant i.e. when resistors are in parallel and the later is used when the resistor are in series .

Though $P=\frac{V^2}{R}$ can also be used in series but we have to calculate the Potential drop across each resistor then we can apply the formula.

Similar is with $P=I^2R$

First we have to calculate current through each resistor then we can apply the Formula

5 0

3 years ago

An empty capacitor is capable of storing 1.0 × 10-4 J of energy when connected to a certain battery. If the distance between the

dangina [55]

Answer:

Explanation:

Energy stored in a capacitor

= 1/2 C₁V²

capacity of a capacitor

c = εK A / d

k is dielectric and d is distance between plates .

When the distance between the plates is halved and then filled with a dielectric (κ = 4.3)

capacity becomes 4.3 x 2 times

New capacity

C₂ = 8.6 C₁

Energy of modified capacitor

1/2 C₂ V²= 1/2 x 8.6 c x V²

Energy becomes

8.6 times.

Energy stored = 8.6 x 10⁻⁴ J

3 0

4 years ago

Visible light transmitting through a certain medium.

Verizon [17]

I think its A: Translucent hope this helps if I'm wrong I'm sorry

8 0

3 years ago

Two trucks with equal mass are attracted to each other with a gravitational force of 5.3 x 10 -4 N. The trucks are separated by

HACTEHA [7]

Answer:

7327 kg or 7.3 tons

Explanation:

We have Newton formula for attraction force between 2 objects with mass and a distance between them:

$F_G = G\frac{M_1M_2}{R^2}$

where $G =6.67408*10^{-11} m^3/kgs^2$ is the gravitational constant on Earth. $M = M_1 = M_2$ is the masses of the 2 objects. and R = 2.6m is the distance between them.

$F_G = 5.3*10^{-4}N$ is the attraction force.

$5.3*10^{-4} = 6.67408*10^{-11}\frac{M^2}{2.6^2}$

$7941265 = \frac{M^2}{2.6^2}$

$M^2 = 53682948.76$

$M = \sqrt{53682948.76} \approx 7327 kg$ or 7.3 tons

3 0

4 years ago