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4 years ago

Explain how gravity and inertia interact to cause the Earth to revolve around the Sun.

Physics

1 answer:

eduard4 years ago

5 0

Answer:

The gravity of the sun and the planets works together with the inertia to create the orbits and keep them consistent. The gravity pulls the sun and the planets together, while keeping them apart. The inertia provides the tendency to maintain speed and keep moving. The planets want to keep moving in a straight line because of the physics of inertia. However, the gravitational pull wants to change the motion to pull the planets into the core of the sun. Together, this creates a rounded orbit as a form of compromise between the two forces.

Explanation:

Hope this answer helps you....

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A canoe floats in a lake. Inside the canoe is a 25 kg steel solid ball. If the ball is thrown into the lake, does the level of t

Rus_ich [418]

Answer:

Explanation:

volume of ball bearing = 4/3 π r³

= 4/3 x 3.14 x 1.5³

= 14.13 cc.

if D be the density of steel , weight of the ball bearing

= 14.13 x D x g

For the first case , water will be displaced to keep it floating

weight of displaced water will be equal to weight of steel

weight of displaced water = 14.13 Dg

mass of displaced water = 14.13 D

volume of displaced water = mass / density of water

= 14.13 D / d ; (where d is density of water) .

Now when the steel ball bearing is dipped in water , it will displace water equal to its volume only and it will be drowned

its volume = 14 .13 cc

14.13 D / d > 14.13 ( because D/d is more than one , since D > d )

volume of water displaced in first case is greater

water level will go up higher in first case .

Hence in the second case water level will go down .

Same will happen in case of 25 kg steel .

4 0

3 years ago

A helium-neon laser (λ = 633 nm) illuminates a single slit and is observed on a screen 1.50 m behind the slit. The distance betw

mario62 [17]

Answer:

$0.2$ mm

Explanation:

As we know that

$Y = \frac{m\lambda * D}{d}$

where

m represents the order of minimum

y represents the distance on the screen of the minimum from central axis

λ is the wavelength of the light

D is the distance between screen-to-slit

d represents the width of the slit

For first minima

$y_1 = \frac{1 * 633 * 10^{-9}*1.5}{d}$

For second minima

$y_2 = \frac{2 * 633 * 10^{-9}*1.5}{d}$

$Y_2 - Y_1 = 0.00475m\\\frac{633 * 10^{-9} * 1.5 }{d} = 0.00475\\d = 0.0002 m\\d = 0.2 mm$

3 0

3 years ago

What is 95°F on the Celsius scale?

svetlana [45]

95 degrees Fahrenheit in Celsius scale is 35 degrees Celsius

6 0

3 years ago

What property is a characteristic of a pure substance that can be observed with out changing the substance into something else

WARRIOR [948]

physical property is a characteristics of a pure substance that can be observed without changing the substance into someone else.

4 0

3 years ago

A catfish is spotted at the bottom of a creek. The depth of the water is 2 m. A hunter (with no knowledge of optics) fires a rif

Harlamova29_29 [7]

Answer:

$\Delta d=0.9743\ m$

Explanation:

Given:

depth of fish, $h=2\ m$

angle of incidence, $\angle i=90-40=50^{\circ}$

refractive index of water, $n=1.33$

Apparent distance from the normal projection at the bottom of entrance at air-water surface to the fish:

$d'=h.tan\ \theta$

$d'=2\times tan\ 50$

$d'=2.3835\ m$

Now according to Snell's Law:

$n=\frac{sin\ i}{sin\ r}$

$1.33=\frac{sin\ 50}{sin\ r}$

$\angle r=35.168^{\circ}$

Now the actual distance of the fish from the bottom surface at the normal:

$d=h.tan\ \theta$

$d=2\times tan\ 35.168$

$d=1.4092\ m$

Now distance between bullet hole and fish:

$\Delta d=d'-d$

$\Delta d=2.3835-1.4092$

$\Delta d=0.9743\ m$

7 0

3 years ago