3 years ago

Which of the following is an example of a primary source?

Physics

1 answer:

Oduvanchick [21]3 years ago

8 0

Answer:

i think its no c.

a textbook written by a scientist. because its a first hand data.

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Which of the following is the correct description of momentum?

victus00 [196]

Answer:

The product of mass and velocity is the correct answer

Explanation:

Momentum is defined as mass × velocity

p = mv

7 0

2 years ago

PLEASE ANSWER ASAP!!!

Mice21 [21]

The total momentum of the system has to be conserved to satisfy the principle of conservation of momentum. Before the ball hits the bottle, the momentum of the system is 0.4 x 18 = 7.2 kg m/s

The momentum of the bottle after being hit is 0.2 x 25 = 5 kg m/s

So the momentum of the ball now is 7.2 - 5 = 2.2 kg m/s

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3 years ago

1HP is written in an electric motor. what does it mean?

romanna [79]

Answer:

1HP is 1 Horse Power,

Explanation:

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3 years ago

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If you weigh 637 N on Earth's surface, how much would you weigh on the planet Mars?

vivado [14]

Answer:

To get your answer multiply 637N by 10N/kg to get 6370kg

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2 years ago

An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 2010 × 103 seconds (about

vazorg [7]

Answer:

Radial acceleration of moon is $a_{r} = 2.246\times 10^{-3}$ $\frac{m}{s^{2} }$

Explanation:

Given :

Time period $T = 1.987 \times 10^{6}$ sec

Distance from center of moon to planet $r = 225 \times 10^{6}$ m

From the equation of radial acceleration,

$a_{r} = r\omega ^{2}$

Where $\omega = 2\pi f = \frac{2\pi }{T}$

So $\omega = 3.16 \times 10^{-6} \frac{rad}{s}$

Now moon's radial acceleration,

$a_{r} = 225 \times 10^{6} \times (3.16 \times 10^{-6} )^{2}$

$a_{r} = 2246.76 \times 10^{-6}$

$a_{r} = 2.246\times 10^{-3}$ $\frac{m}{s^{2} }$

7 0

3 years ago