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damaskus [11]
3 years ago
9

What important characteristics of planets and moon are studied by astronomers?

Physics
1 answer:
kondor19780726 [428]3 years ago
5 0

mass density orbit time temperature surface conditions

distyance from sun

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What is the volume of gold with the mass of 1500g if the density of gold is 19.32g ml?
Svetradugi [14.3K]

Answer:

<h3>The answer is 77.6 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question

mass = 1500 g

density = 19.32 g/mL

We have

volume =  \frac{1500}{19.32}  \\  = 77.6397515...

The answer is

<h3>77.64 mL</h3>

Hope this helps you

7 0
3 years ago
A man is dragging a trunk up the loading ramp of a mover’s truck. The ramp has a slope angle of 20.0°, and the man pulls upward
AleksandrR [38]

Answer:

(a)  104 N

(b) 52 N

Explanation:

Given Data

Angle of inclination of the ramp: 20°

F makes an angle of 30° with the ramp

The component of F parallel to the ramp is Fx = 90 N.  

The component of F perpendicular to the ramp is Fy.

(a)  

Let the +x-direction be up the incline and the +y-direction by the perpendicular to the surface of the incline.  

Resolve F into its x-component from Pythagorean theorem:  

Fx=Fcos30°

Solve for F:  

F= Fx/cos30°  

Substitute for Fx from given data:  

Fx=90 N/cos30°

   =104 N

(b) Resolve r into its y-component from Pythagorean theorem:

     Fy = Fsin 30°

   Substitute for F from part (a):

     Fy = (104 N) (sin 30°)  

          = 52 N  

5 0
3 years ago
What is arthritis <br><br><br> ty for answers
sergejj [24]

Answer:

That is when your fingers are bent in a weird way and are distorted...

Explanation:

6 0
3 years ago
As the wavelength increases, the frequency (2 points) decreases and energy decreases. increases and energy increases. decreases
frozen [14]
Bohr's equation for the change in energy is
\Delta E= \frac{hc}{\lambda}
where
h = Planck's constant
c == the velocity of light
λ = wavelength.

The velocity is related to wavelength and frequency, f, by
c = fλ

Let us examine the given answers on the basis of the given equations.

a. As λ increases, f decreases and ΔE decreases.
     TRUE

b. As λ increases, f increases and ΔE increases.
    FALSE

c. As λ increases, f increases and ΔE decreases.
    FALSE

Answer: 
As the wavelength increases, the frequency decreases and energy decreases.

3 0
4 years ago
Read 2 more answers
How to show your work for 0.04% of 245
Harlamova29_29 [7]
0.04*245 is the work
7 0
3 years ago
Read 2 more answers
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