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Serggg [28]
3 years ago
10

Which is heavier , a kilogram of lead or a kilogram of a polystyrene beads ?​

Physics
2 answers:
poizon [28]3 years ago
7 0

Answer:

they both are the same

Explanation:

they both weigh 1 kg

Mars2501 [29]3 years ago
3 0

Answer:

They weight the same, they're both 1 kilogram

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The motion of the light is a uniform motion with constant speed v=3 \cdot 10^5 km/s, therefore we can use the basic relationship between speed, space and time:
v= \frac{S}{t} (1)
where S is the distance covered and t is the time taken. The light takes t=1.3 s to travel from the moon to Earth, therefore by rearranging eq.(1) we can find the distance between the Moon and the Earth:
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Why does conduction occur mainly in the lower atmosphere
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3 years ago
One object is thrown vertically upward with an initial velocity of 100 m/s and
gavmur [86]

We have that for the Question it can be said that The maximum height reached  by the first <em>object</em> will be  100 times  that of the other.

  • (H_{max})_1=100*(H_{max})_2

From the question we are told

One object is thrown vertically upward with an initial velocity of 100 m/s and  another object with an initial velocity of 10 m/s. The maximum height reached  by the first object will be

that of the other.

a. 10,000 times

b. none of these

<em>c. </em><em>1000 times</em>

d. 100 times

<em>e.</em><em> 10 times</em>

Generally the equation for the velocity is mathematically given as

v=\frac{d}{t}\\\\Where\\\\\frac{H_{max}_1}{H_{max}_2}=\frac{(V_1)^2}{(v_2)^2}\\\\\frac{H_{max}_1}{H_{max}_2}=\frac{10000}{(10}\\\\

(H_{max})_1=100*(H_{max})_2

Therefore

The maximum height reached  by the first <em>object</em> will be  100 times  that of the other.

(H_{max})_1=100*(H_{max})_2

For more information on this visit

brainly.com/question/23379286

8 0
3 years ago
Your mobile charger is an example of<br>a.transformer<br>b.solenoid<br>c.motor.<br>d.generator<br>​
lianna [129]

Answer:

Your mobile charger is an example of (d.) a generator.

Explanation:

Your mobile charger generates energy to charge your device.

5 0
3 years ago
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The current through a certain heater wire is found to be fairly independent of its temperature. If the current through the heate
irina [24]

Answer:

(c) increase by a factor of four

Explanation:

energy = power x time, and power = resistance x current ^2. 2^2 = 4.

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3 years ago
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