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Oxana [17]
4 years ago
7

Velocity describes both speed and direction; therefore, it is __________.

Physics
2 answers:
nikklg [1K]4 years ago
5 0
The same as acceleration.
german4 years ago
4 0
Velocity describes both speed and direction; therefore, it is a force arrow
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You used a telescope and other mathematics to discover that Jupiter is 5.20 au from the sun. Use the equation to find its orbita
meriva

Answer:

11.9 years

Explanation:

We can find the orbital period by using Kepler's third law, which states that the ratio between the square of the orbital period and the cube of the average distance of a planet from the Sun is constant for every planet orbiting aroudn the Sun:

\frac{T^2}{r^3}=const.

Using the Earth as reference, we can re-write the law as

\frac{T_e^2}{r_e^2}=\frac{T_j^2}{r_j^3}

where

Te = 1 year is the orbital period of the Earth

re = 1 AU is the average distance of the Earth from the Sun

Tj = ? is the orbital period of Jupiter

rj = 5.20 AU is the average distance of Jupiter from the Sun

Substituting the numbers and re-arranging the equation, we find:

T_j=\sqrt{\frac{T_e^2 r_j^3}{T_j^2}}=\sqrt{\frac{(1 y)^2 (5.2 AU)^3}{(1 AU)^3}}=11.9 y


4 0
3 years ago
Read 2 more answers
Earth Atmosfear is uniqe amongst the planets and is able to support life because it contains a large amount of __?
kiruha [24]

Answer:

A

Explanation:

The abundance of oxygen in our atmosphere and the presence of liquid water on the surface of our planet makes our "Pale Blue Dot" stand out in contrast to the other planets in the solar system — a unique and fragile home for life.

3 0
2 years ago
Which statement best defines work? (2 points) Group of answer choices
Irina18 [472]

Answer:last choice is correct. Work is equally to force times distance

Explanation:to generalize, W is equal to to force as a function of distance integrated over distance. Work is equivilent to energy. See work/force equivalency

4 0
2 years ago
A pizza delivery person drives 3 miles North then 5 miles West and then 3 miles South to deliver a pizza. What is the person's d
AleksAgata [21]

Answer:11

Explanation:

Just did it

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3 years ago
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Softa [21]

Answer:

When an object moves in a straight line, it is said to be in linear motion. By Newton's first law of motion, a body tends to be in rest or motion in a straight line until a net non-zero force acts on it.

Rate of change of position with respect to time is known as velocity. Uniformly accelerated motion refers to the motion where the rate of change of velocity with respect to time is constant.

Kinematic equations can be used to measure different aspects of a linear motion:

v = u + a t

s = u t + 0.5 a t²

v²= u² + 2 a s

where, u is initial velocity, v is final velocity, a is acceleration, t is time and s is displacement.

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3 years ago
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