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4 years ago

9

Who was the first head of the NASA space program was Sergei Korolov, but the Russians never identified him by name. What did the

y call him in public?

1 answer:

larisa86 [58]4 years ago

6 0

Korolev's name became known in the West. I hope this helps.

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What is called the process of finding exact quantity of a substance?

Tema [17]

Answer:

Measurement is called the process of finding exact quantity of a substances.

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2 years ago

Is it using energy when someone stands against a locker that doesn’t move

soldi70 [24.7K]

When someone stands against a locker and is does not moving at all, then there will be no displacement and since displacement = 0

Work done also becomes equal to zero.

Work done is usually defined as change in energy. Since the work done is zero there has been no energy used.

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3 years ago

The electrons of an atom store nuclear energy.

Sladkaya [172]

False. The nuclear energy is found within the nucleus. Electrons are located outside the nucleus.

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3 years ago

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What is the wavelength of microwaves with a frequency of 3x10^10 Hz?

RUDIKE [14]

Answer:

0.01 m

Explanation:

Since the speed of light is 3.0×10^8 m/s

Use the equation,

Wavelength = speed ÷ frequency

Wavelength = 3.0×10^8 ÷ 3×10^10

Wavelength = 0.01m

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3 years ago

Select the correct answer. Eli and Andy want to find out which of the two is stronger. Eli pushes a table with a force of 120 ne

sergiy2304 [10]

Acceleration of the table: B. 0.50 meters/second2

Explanation:

The problem can be solved by using Newton's second law of motion, which states that the net force acting on an object is the product of its mass and its acceleration. Mathematically:

$\sum F = ma$

where

$\sum F$ is the net force

m is the mass

a is the acceleration

For the table in this problem, we have:

$\sum F = 125 N - 120 N = 5 N$ is the net force on the table, because there are two forces of 125 N and 120 N acting in opposite directions

m = 10.0 kg is the mass of the table

Solving for a, we find the acceleration:

$a=\frac{\sum F}{m}=\frac{5}{10.0}=0.50 m/s^2$

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

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3 years ago

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