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MaRussiya [10]
3 years ago
8

If an object is dropped from a tall building and hits the ground 3.0 s later, how tall is the building?

Physics
1 answer:
allsm [11]3 years ago
6 0
D = 1/2 g t^2. It works out to 44.1 meters.
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A magnetically soft material is placed in a strong magnetic field. What is the most likely outcome?
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D-It will become a temporary magnet because the domains will easily realign.

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3 years ago
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An object is moving at a constant velocity of 4 m/s. What is it's initial velocity?
AysviL [449]

Answer:

How does sperm cells get out of the genitals of the male's?  What produces the sperms? Why does women have to hope on the genitals?

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sgo]er]'gr'kspdzg'

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4 0
3 years ago
An oxygen molecule is adsorbed onto a small patch of the surface of a catalyst. It's known that the molecule is adsorbed on of p
FromTheMoon [43]

The given question is incomplete. The complete question is as follows.

An oxygen molecule is adsorbed onto a small patch of the surface of a catalyst. It's known that the molecule is adsorbed on 1 of 36 possible sites for adsorption. Calculate the entropy of this system.

Explanation:

It is known that Boltzmann formula of entropy is as follows.

             s = k ln W

where,   k = Boltzmann constant

              W = number of energetically equivalent possible microstates or configuration of the system

In the given case, W = 36. Now, we will put the given values into the above formula as follows.

                  s = k ln W

                    = 1.38 \times 10^{-23} ln (36)        

                    = 4.945 \times 10^{-23} J/K

Thus, we can conclude that the entropy of this system is 4.945 \times 10^{-23} J/K.

4 0
3 years ago
vehicles equipped with disc brakes incorporate a mechanically operated drum-style parking brake in the center of the rear disc b
umka21 [38]

Vehicles equipped with disc brakes incorporate a mechanically operated drum-style parking brake in the center of the rear disc brake rotors, commonly called a top hat parking brake.

<h3>What is top hat parking brake?</h3>

The top hat drum style of parking brake system is called the top hat rotors because of how big the middle part is compared to regular rotors.

In this type of parking brake system, the vehicle is equipped with disc brakes which incorporate a mechanically operated drum-style parking brake in the center of the rear disc brake rotors.

Thus, vehicles equipped with disc brakes incorporate a mechanically operated drum-style parking brake in the center of the rear disc brake rotors, commonly called a top hat parking brake.

Learn more about top hat parking brake here: brainly.com/question/21854030

4 0
2 years ago
When a wire 1.5 m long carries a 24-A current in the +x direction in a uniform external magnetic field, the magnetic force exert
VLD [36.1K]

Answer:

Explanation:

Let the magnetic field be

B = B_xi +B_yj +B_z k

For magnetic force , the expression is

F = L ( I x B )

= 1.5 ( 24i x B_xi +B_yj +B_z k )

F = 36 B_y k - 36 B_z j

Given

F = 3 j + 2 k

Equating equal terms

we have

B_y = 2 / 36 , B_z = - 3 / 36

Now the direction of current is changed to y direction

so F = 1.5[ 24j \times ( B_xi +B_yj +B_z k )]

Given

F = - 3 i - 2 k

Equating equal terms

we have

B_x = 2 / 36 , B_z = - 3 / 36

So B = 2/36 i + 2/36 j - 3/ 36 k

Magnitude of B

= 4.1 / 36 T

8 0
3 years ago
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