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3 years ago

1 What happens to the direction of the force on a current-carrying wire if the

Physics

1 answer:

sertanlavr [38]3 years ago

5 0

Answer:

<h2>If the forefinger points in the direction of the magnetic field and the middle finger in the direction of the current, then, the thumb points in the direction of the force exerted on the conductor.So, if the current is reversed in the conductor placed in a magnetic field the direction of force is also reversed..</h2>

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What is the average velocity in m/y of a tectonic plate that has traveled 9000 km to the south in 60 million years

alexandr402 [8]

9,000,000 ÷ 60,000,000 = 0.15m/y

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3 years ago

How is a mesa formed

mina [271]

Mesas form by weathering and erosion of horizontally layered rocks that have been uplifted by tectonic activity. Variations in the ability of different types of rock to resist weathering and erosion cause the weaker types of rocks to be eroded away, leaving the more resistant types of rocks topographically higher than their surroundings. This process is called differential erosion.

Hope it helps!

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3 years ago

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The student concluded that the current in the LDR is inversely proportional to the potential difference across the LDR. Explain

Andrej [43]

Answer:

The graph shows direct proportion because it is a straight line

through the origin.

Explanation:

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4 years ago

A 1.0-kg cue ball traveling at 15 m/s strikes a stationary billiard ball of mass 1.5 kg. After the collision, the cue ball remai

Igoryamba

Answer:

Other ball's velocity is 10 m/s

Explanation:

We can use conservation of momentum:

$P_{1i} +P_{2i} =P_{1i} +P_{2i}\\1 * 15 + 1.5 * 0 = 1 * 0 + 1.5 * v\\15 = 1.5 * v\\v=\frac{15}{1.5} \,\frac{m}{s} \\v=10 \,\frac{m}{s}$

8 0

3 years ago

A current of 200 mA through a conductor converts 40 joules of electrical energy into heat in 30 second

Komok [63]

Answer:

V = 6.65 [volt]

Explanation:

First, we must calculate the power by means of the following equation, where the voltage is related to the energy produced or consumed in a given time.

$P=E/t\\P = 40/30\\P = 1.33[s]$

Using the power we can calculate the voltage, by means of the following equation that relates the voltage to the current.

$P=V*I$

where:

V = voltage [Volts]

I = current = 200 [mA] = 0.2 [A]

$V = 1.33/0.2\\V = 6.65 [volt]$

8 0

3 years ago