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snow_tiger [21]
3 years ago
7

Which scientist explained why binary stars change colors?

Physics
1 answer:
motikmotik3 years ago
5 0

Answer:

C

Explanation:

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Which has more momentum, a small object moving 10 miles per hours or a large object at rest?
xeze [42]
Well the object will have no Momentum since it is not moving, so a small object that is going 10 mph will have Momentum.
3 0
4 years ago
Car A has twice the mass of Car B; both travel at the same speed. Compared to Car B. Car A has:
krek1111 [17]

Answer:

Car A has twice the energy of car B.

Explanation:

The kinetic energy of an object is given by :

K=\dfrac{1}{2}mv^2

Where

m is the mass

v is the speed of the object

Car A has twice the mass of Car B. Both travel at the same speed i.e.

m_A=2m_B

So,

\dfrac{K_A}{K_B}=\dfrac{(1/2)m_Av^2}{(1/2)m_Bv^2}\\\\=\dfrac{2m_B}{m_B}\\\\\dfrac{K_A}{K_B}=2\\\\K_A=2\times K_B

So, the kinetic energy of car A is twice of the kinetic energy of car B.

4 0
3 years ago
Read 2 more answers
How did each scientist contributed to cell theory?
LekaFEV [45]

Answer:

Matthias Schleidan

Explanation:

because Matthias Schleiden found that all plants are composed of cells, and communicated the finding to Schwann, who had found similar structures in the cells. Other researchers confirmed the similarity, as explained in his book, where he concluded, "All living things are composed of cells and cell products.

This became the cell theory.

I learn that in my old school.

6 0
3 years ago
A flat sheet is in the shape of a rectangle with sides of lengths 0.400 m and 0.600 m. The sheet is immersed in a uniform electr
ch4aika [34]
Freeeeeeeeeeeeeeeeeeeeee
6 0
3 years ago
a cepheid variable star is a star whose brightness alternately increases and decreases. suppose that cephei joe is a star for wh
MrRissso [65]

After one day, the rate of increase in Delta Cephei's brightness is;0.46

We are informed that the function has been used to model the brightness of the star known as Delta Cephei at time t, where t is expressed in days;

B(t)=4.0+3.5 sin(2πt/5.4)

Simply said, in order to determine the rate of increase, we must determine the derivative of the function that provides

B'(t)=(2π/5.4)×0.35 cos(2πt/5.4)

Currently, at t = 1, we have;

B'(1)=(2π/5.4)×0.35 cos(2π*1/5.4)

Now that the angle in the bracket is expressed in radians, we can use a radians calculator to determine its cosine, giving us the following results:

B'(1)=(2π/5.4)×0.3961

B'(1)≈0.46

To know more about:

brainly.com/question/17110089

#SPJ4

7 0
1 year ago
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