3 years ago

What is the force exerted by a solid surface that opposes gravity?

Physics

2 answers:

jonny [76]3 years ago

6 0

Electromagnetic force between the molecules!

Ann [662]3 years ago

6 0

The force exerted upward that opposes gravity is the Normal Force.

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Which statement describes a characteristic of an experimental design that

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Explanation:

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2 years ago

Answer both and i’ll venmo u rn if ur right pls pls

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Answer:

2.5

Explanation:

25-22.5n= will give you 2.5

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2 years ago

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A truck traveling at a constant speed of 28 m/s passes a more slowly moving car. The instant the truck passes the car, the car b

choli [55]

Answer:

the velocity of car when it passes the truck is u = 16.33 m/s

Explanation:

given,

constant speed of truck = 28 m/s

acceleration of car = 1.2 m/s²

passes the truck in 545 m

speed of the car when it just pass the truck = ?

time taken by the truck to travel 545 m

time = $\dfrac{distance}{speed}$

time = $\dfrac{545}{28}$

time =19.46 s

velocity of the car when it crosses the truck

$S = ut + \dfrac{1}{2}at^2$

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u = 16.33 m/s

the velocity of car when it passes the truck is u = 16.33 m/s

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3 years ago

When an electron in a certain excited energy level in a one-dimensional box of length 2.00 Å makes a transition to the ground st

Fiesta28 [93]

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Calculate the wavelength associated with an electron with energy 2000 eV.

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2 years ago

A force of 8.0 N is along x direction, another force of 6.0 N is along +y direction. If both forces are acting on a point object

Darya [45]

Answer:

Resultant force, R = 10 N

Explanation:

It is given that,

Force acting along +x direction, $F_x=8\ N$

Force acting along +y direction, $F_y=6\ N$

Both the forces are acting on a point object located at the origin. Let the resultant force of the object is given by R. So,

$R=\sqrt{F_x^2+F_y^2+F_xF_y\ cos\theta}$

Here $\theta=90^{\circ}$

$R=\sqrt{F_x^2+F_y^2}$

$R=\sqrt{8^2+6^2}$

R = 10 N

So, the resultant force on the object is 10 N. Hence, this is the required solution.

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3 years ago