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3 years ago

Why do intermolecular forces exist between water molecules?

Physics

1 answer:

zlopas [31]3 years ago

7 0

Answer:

I think the answer is B

There is no specific reason

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If you were to take the universe's temperature, what would the reading be?

Fiesta28 [93]

I think the correct answer choice is c

6 0

3 years ago

A small ball is attached to one end of a rigid rod with negligible mass. The ball and the rod revolve in a horizontal circle wit

castortr0y [4]

Answer:

mass of the ball will be 1 kg

Explanation:

We have given force F = 0.5 N

This force must be equal to the centripetal force for the ball to revolve in the circle

So $F=F_C=0.5N$

Centripetal acceleration is given as $a_c=0.5m/sec^2$

We have to calculate the mass of the ball

We know that force is given by

$F_C=ma_c$

So $0.5=m\times 0.5$

m = 1 kg

So mass of the ball will be 1 kg

5 0

3 years ago

If a car change the velocity from 36M/S to 28M/S with an acceleration of -2.0 M/S then how much time does it take for the vehicl

leonid [27]

The time it will take if a car change the velocity from 36m/s to 28m/s with an acceleration of -2.0m/s² is 4s.

<h3>How to calculate deceleration?</h3>

Deceleration is the amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity).

The deceleration of a body can be calculated using the following formula:

-a = (v - u)/t

Where;

-a = deceleration
v = final velocity
u = initial velocity
t = time in seconds

-2 = (28 - 36)/t

-2t = -8

t = 4s

Therefore, the time it will take if a car change the velocity from 36m/s to 28m/s with an acceleration of -2.0m/s² is 4s.

Learn more about deceleration at: brainly.com/question/4403243

#SPJ1

6 0

2 years ago

The quality of ____ opposes the flow of electric current through a material .

QveST [7]

The answer is Resistance

3 0

3 years ago

Read 2 more answers

Newly discovered planet has twice the mass and three times the radius of the earth. What is the free-fall acceleration at its su

skad [1K]

Answer:

$g_n=\dfrac{2}{9}g$

Explanation:

M = Mass of Earth

G = Gravitational constant

R = Radius of Earth

The acceleration due to gravity on Earth is

$g=\dfrac{GM}{R^2}$

On new planet

$g_n=\dfrac{G2M}{(3R)^2}\\\Rightarrow g_n=\dfrac{2GM}{9R^2}$

Dividing the two equations we get

$\dfrac{g_n}{g}=\dfrac{\dfrac{2GM}{9R^2}}{\dfrac{GM}{R^2}}\\\Rightarrow \dfrac{g_n}{g}=\dfrac{2}{9}\\\Rightarrow g_n=\dfrac{2}{9}g$

The acceleration due to gravity on the other planet is $g_n=\dfrac{2}{9}g$

4 0

3 years ago

Read 2 more answers