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AlexFokin [52]
3 years ago
7

2. In each of A, B, C, & D below, a sphere is moving from left to right next 20 points

Physics
1 answer:
laila [671]3 years ago
8 0

Answer:

zero

rank the magnitude of the average velocity over the first 2 second

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60 is the speed of the car

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If an astronaut travels to different planets, which of the following planets will the astronaut’s weight be the same as on Earth
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<h2>Astronaut travels to different planets - Option 4 </h2>

If an astronaut travels to different planets, none of the planets will the astronaut’s weight be the same as on Earth. On jupiter, weight will be more than the weight on earth. For instance if an astronaut has 100kg on earth then he will have 252 kg on jupiter.

On Mars, weight will be less than the weight on the earth. For instance, if an astronaut has 68 kg on earth then he will has 26 kg on mars. On Mercury, weight of an astronaut will be less than the weight on earth. Example if he has 68 kg on earth then he will have 25.7kg on mercury.

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2 years ago
4) You have a 10 ohm resistor connected in series with an ammeter. The voltage applied to the whole circuit is 1.2 volts. At the
GuDViN [60]

Answer:

0.6 Ω

Explanation:

As shown in the diagram below,

Since the resistance and the ammeter are connected in series,

(i) The same amount of current flows through them.

(ii) The sum of their individual individual voltage is equal to the total voltage of the circuit.

Applying ohm's law,

V = IR................ Equation 1

Where V = Voltage across the ammeter, I = current flowing through the ammeter, R = resistance of the ammeter.

make R the subject of the equation

R = V/I............... Equation 2

Given: V = 1.2-0.9 = 0.3 V, I = 0.5 A.

Substitute into equation 2

R = 0.3/0.5

R = 0.6 Ω

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B. Earth’s outer surface is cooler than its interior layers.

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  • The heat loss is due to the absorption of heat during its transfer. Hence, option B is the answer.
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