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DENIUS [597]
3 years ago
15

A quantity that has both direction and magnitude is known as what

Physics
1 answer:
RideAnS [48]3 years ago
8 0

Answer:

A vector is a quantity that has both magnitude and direction. DEF: A scalar is a quantity that has magnitude but NO direction.

Explanation:

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tatuchka [14]
It is b! the lithosphere is the crust and upper mantle
6 0
3 years ago
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Suppose that the sun shrank in size but that its mass remained the same. What would happen to the orbit of the earth?
Minchanka [31]

Answer:

Nothing

Explanation:

The radius of the orbit of the Earth does not depend on the radius of the sun.

In fact, the gravitational attraction between the Earth and the Sun provides the centripetal force that keeps the Earth in orbit:

G\frac{Mm}{r^2} = m\frac{v^2}{r}

where

G is the gravitational constant

M is the mass of the sun

m is the mass of the Earth

r is the radius of the orbit of the Earth

v is the orbital speed of the earth

Re-arranging the equation for r:

r=\frac{GM}{v^2}

Also,

v=\omega r

where \omega is the angular velocity of the Earth's orbit. So we can rewrite the equation as

r=\frac{GM}{\omega^2 r^2}\\r^3 = \frac{GM}{\omega^2}

As we see, the radius of the orbit of the Earth, r, does not depend on the mass of the Sun, so if the sun shrank in size, the orbit remains the same.

6 0
3 years ago
If you measure the mass of a model car to be 230 grams, but the actual mass is 218 grams, what is your percent error?
konstantin123 [22]

Mass of a model car you measured = 230 grams

Actual mass = 218 grams

Percent error = ?

First subtract the actual value from the value you measured,

230 grams – 218 grams = 12 grams

Now divide 12 grams by the actual mass that is 218 grams:

12 / 218 = 0.055                             

Now multiply 0.055 with 100 to get the percent error;

0.055 x 100 = 5.5%

So, the Percent error is 5.5%.

8 0
4 years ago
(03.05 LC)
Lynna [10]
Honed I don’t know where the question is
7 0
3 years ago
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What is the unit of measurement for power?<br> A. m/s2<br> B. watts<br> C. joules<br> D. newtons
anyanavicka [17]

Power is the rate of doing work or using energy.

The unit of power is the watt.

         1 watt  =  1 joule per second
 
8 0
3 years ago
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