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Nataliya [291]
3 years ago
15

Is time a vector, scalar, both, neither

Physics
1 answer:
disa [49]3 years ago
5 0

Answer:

neither

Explanation:

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The angular separation of two stars is 0.1 arcseconds and you photograph them with a telescope that has an angular resolution of
gizmo_the_mogwai [7]

Answer:

Will see them as only one star

Explanation:

Solution:

- The angular resolution of a telescope means the minimum quantity that can be visualized. Since their angular separation ( 0.1 arcseconds ) is smaller than the telescope's angular resolution (1 arcseconds ), your photograph will seem to show only one star rather than two.

7 0
3 years ago
8. John has to hit a bottle with a ball to win a prize. He throws a 0.4 kg ball with a velocity of 18 m/s. It hits a 0.2 kg bott
nasty-shy [4]

<u>Answer:</u> The ball is travelling with a speed of 5.5 m/s after hitting the <u>bottle.</u>

<u>Explanation:</u>

To calculate the speed of ball after the collision, we use the equation of law of conservation of momentum, which is given by:

m_1u_1+m_2u_2=m_1v_1+m_2v_2

where,

m_1,u_1\text{ and }v_1 are the mass, initial velocity and final velocity of ball.

m_2,u_2\text{ and }v_2 are the mass, initial velocity and final velocity of bottle.

We are given:

m_1=0.4kg\\u_1=18m/s\\v_1=?m/s\\m_2=0.2kg\\u_2=0m/s\\v_2=25m/s

Putting values in above equation, we get:

(0.4\times 18)+(0.2\times 0)=(0.4\times v_1)+(0.2\times 25)\\\\v_1=5.5m/s

Hence, the ball is travelling with a speed of 5.5 m/s after hitting the bottle.

5 0
3 years ago
Sail's size and material can make a difference in the effectiveness of how it works because?
Lunna [17]
You need to give more info to your answer so i can help u
7 0
3 years ago
Find avrage speed for a horse that traveled east 25 km in 4 hours
inysia [295]

Answer:

6.25 mph

Explanation:

You would divide 25 by 4 to get the average miles per hour.

3 0
3 years ago
Economic growth as measured by gross domestic product does not really tell us much about citizens' general well-being. Consider
kotegsom [21]

Answer:

b

i remember this question from when i had a test to take.

4 0
3 years ago
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