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Oxana [17]
3 years ago
13

Whick of the following quantities are vectors?

Physics
1 answer:
Rufina [12.5K]3 years ago
3 0

Velocity and displacement are vectors. (A and D)

Temperature, volume, and height aren't.

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The altitude of the International Space Station ttt minutes after its perigee (closest point), in kilometers, is given by \qquad
Dmitriy789 [7]

Answer:

T = 92.8 min

Explanation:

Given:

The altitude of the International Space Station t minutes after its perigee (closest point), in kilometers, is given by:

                               A(t) = 415 - sin(\frac{2*\pi (t+23.2)}{92.8})

Find:

- How long does the International Space Station take to orbit the earth? Give an exact answer.

Solution:

- Using the the expression given we can extract the angular speed of the International Space Station orbit:

                                 A(t) = 415 - sin({\frac{2*\pi*t }{92.8} + \frac{23.2*2*\pi }{92.8} )

- Where the coefficient of t is angular speed of orbit w = 2*p / 92.8

- We know that the relation between angular speed w and time period T of an orbit is related by:

                                T = 2*p / w

                                T = 2*p / (2*p / 92.8)

Hence,                     T = 92.8 min

7 0
3 years ago
Please help me out !!!!!!
nikdorinn [45]

Answer:

89

Explanation:

8 0
3 years ago
Describe the factors that cause static friction between two surfaces to increase.
maw [93]

Answer : The static friction depends on two factors

1. Roughness of the surface

2. Force

Explanation : Friction occur when surface is not smooth.

The formula of friction is

F= \mu mg

Static friction depends on the roughness of the surface and force which is trying to push to object along the surface.

Static friction is caused by the attraction between two surfaces that are in contact.  when the surface will rough and the object will heavier then the force will be larger.

4 0
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Which has more kinetic energy, a basketball rolling at a walking pace or a baseball rolling at the pace of someone running? How
icang [17]

Answer:

answer 2 because the baseball has less mass then the 1st one

8 0
2 years ago
Which statement about allele combinations is accurate?
Pepsi [2]

Offspring get two alleles for each trait – one from each parent.

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2 years ago
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