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lyudmila [28]
2 years ago
10

When a solid compound dissolves in water,

Physics
1 answer:
rewona [7]2 years ago
6 0
The answer is d. Each of its particles becomes surrounded by water molecules.

Notice that when you dissolve a solid compound in the water, it is no longer visible in or eyes, it mixes in the water, it is because it is being divided into smaller particles and each particles were surrounded by the water molecules.
You might be interested in
A water skier lets go of the tow rope upon leaving the end ofa
ANTONII [103]

Answer:

1.35m

Explanation:

At the highest point of the jump, the vertical speed of the skier should be 0. So the 13m/s speed is horizontal, this speed stays the same from the jumping point to the highest point. The 14m/s speed at jumping point is the combination of both vertical and horizontal speeds.

The vertical speed at the jumping point can be computed:

v_v^2 + v_h^2 = v^2

v_v^2 + 13^2 = 14^2

v_v^2 = 196 - 169 = 27

v_v = \sqrt{27} = 5.2 m/s

When the skier jumps to the its potential energy is converted to kinetic energy:

E_p = E_k

mgh = mv_v^2/2

where m is the skier mass and h is the vertical distance traveled, v_v is the vertical velocity at jumping point, and h is the highest point.

Let g = 10m/s2

We can divide both sides of the equation by m:

gh = v_v^2/2

h = \frac{v_v^2}{2g} = \frac{27}{2*10} = 1.35 m

3 0
3 years ago
A ray of light contains two colors: red with wavelength of 660 nm and blue with wavelength 470 nm. The ray passes through two na
densk [106]

Answer:

The distance on the screen between the first-order bright fringes  for each wavelength is 3.17 mm.

Explanation:

Given that,

Wavelength of red = 660 nm

Wavelength of blue = 470 nm

Separated d= 0.30 mm

Distance between screen and slits D= 5.0 m

We need to calculate the distance for red wavelength

Using formula for distance

y=\dfrac{\lambda D}{d}

Where, D = distance between screen and slits

d = separation of slits

Put the value into the formula

y=\dfrac{660\times10^{-9}\times5.0}{0.30\times10^{-3}}

y=11\ mm

For blue wavelength,

Put the value into the formula again

y'=\dfrac{470\times10^{-9}\times5.0}{0.30\times10^{-3}}

y'=7.83\ mm

We need to calculate the distance on the screen between the first-order bright fringes for each wavelength

Using formula for distance

\Delta y=y-y'

\Delta y=11-7.83

\Delta y=3.17\ mm

Hence, The distance on the screen between the first-order bright fringes  for each wavelength is 3.17 mm.

4 0
3 years ago
How many foot-pounds of work does it take to throw a baseball 90 mph? a baseball weighs 5 oz, or 0.3125 lb?
NARA [144]

Kinetic energy of the ball is (mv²) / 2, where m is the mass and v is the velocity

So plugging in the mass and the velocity into the kinetic energy expression, you get:

Kinetic energy of the ball = (mv²) / 2

(0.3125/32) times (132)² divided by 2 = 85 ft-lbs


Kinetic energy of the ball = 85 ft-lbs


5 0
3 years ago
A submarine is 20m below the surface of the sea. the pressure due to the water at this depth is P. on another day, the submarine
satela [25.4K]

Answer:

1.7p

Explanation:

8 0
3 years ago
How is it technically correct to say that a car making a u-turn can have a constant speed but cannot have a constant velocity?
saw5 [17]

During the "U" part of the turn, the car would follow an approximately circular path, and if it's moving at a constant speed, it would have to accelerate toward the center of the circle in order to change its direction.

5 0
2 years ago
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