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3 years ago

The force that pulls planets torwards the sun is called

Physics

1 answer:

Studentka2010 [4]3 years ago

7 0

Answer:

gravity

Explanation:

Gravity pulls the planets toward the Sun. Gravity pulls the moon toward Earth. Gravity pulls us toward the Earth. Gravity is a force. Inertia.

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A trio of students push a 65 kg crate. The first student pushes 31 N [e], the second student pushes 28 N [s] and the third stude

Verdich [7]

Answer:

The free body diagram is attached.

Explanation:

A force of 31[N] to the east, the second force goes to the south and it is equal to 28[N], the third force goes to the west and it is equal to 39 [N].

We can consider the crate as a particle. And all the forces are acting over the particle.

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3 years ago

What can you say about a solution of the equation y' = (1/2)y2 just by looking at the differential equation?

noname [10]

The function y must be equal to 0 on any interval on which it is defined. The function y must be increasing (or equal to 0) on any interval on which it is defined.

Analysis of solution by seeing differential equation:

Given differential equation is: y' = (1/2)y2

How do deduce the results just by seeing them?

The equation tells us that:

rate = positive of ( y^2 )

rate = positive of (positive or zero) = positive or zero

Thus, the rate is positive or zero no matter what value we put in the place of y from its valid domain, since.

When the rate is positive or zero, that means the function will never grow upwards. Thus, either increasing or staying at the same level.

Learn more about differential equations here:

brainly.com/question/25731911

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6 0

2 years ago

Is parenting nature or nurture

xxTIMURxx [149]

Parenting is nurture hope this helps!

5 0

3 years ago

Read 2 more answers

The voltage across a membrane forming a cell wall is 74.0 mV and the membrane is 8.40 nm thick. What is the electric field stren

Readme [11.4K]

Answer:

Electric field strength=8.81×10⁶V/m

Explanation:

Given Data

voltage v= 74.0 mV

Membrane thickness d=8.40 nm

To find

Electric field strength E=?

Solution

Electric field strength =voltage/Membrane thickness

$E=v/d\\E=\frac{74.0*10^{-3} }{8.40*10^{-9} }\\ E=8.81*10^{6}V/m$

8 0

3 years ago

A small mirror is attached to a vertical wall, and it hangs a distance of 1.86 m above the floor. The mirror is facing due east,

Katyanochek1 [597]

Answer:

$t=2.044\ hr$

Explanation:

From the schematic we can visualize the situation and the position of the rays falling on the floor.

Considering the given data from the lowest edge of the mirror.

We get a triangle with height of 1.86 meters.

In the first instance the base of the triangle is 3.8 meters.

While in the second instance the base is 1.22 meters.
Speed of rotation of earth, $\omega=15^{\circ}\ hr^{-1}$

Now applying the trigonometric ratio to known sides in the first instance:

$tan\ \theta_1=\frac{1.86}{3.8}$

$\theta_1=26.08^{\circ}$

Applying the trigonometric ratio to known sides in the second instance:

$tan\ \theta_2=\frac{1.86}{1.22}$

$\theta_2=56.74^{\circ}$

Now by the law of reflection we know that the angle of incidence is equal to the angle of reflection. So the sun would have been at the same angle on the opposite side of the normal.

Hence the change in angle of the sun with respect to the mirror (also the earth)

$\Delta \theta=\theta_2-\theta_1$