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3 years ago

11

A well blended mixture that contains at least one solute and one solvent is a _____.

1 answer:

tensa zangetsu [6.8K]3 years ago

4 0

A solution, an example is salt and water. brainliest?

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A spacecraft on its way to Mars has small rocket engines mounted on its hull; one on its left surface and one on its back surfac

lozanna [386]

Answer:

v=545.41 $\frac{m}{s}$

β=-25.93

Explanation:

Give the acceleration in 'x' and 'y' also the time can find the initial velocity using equation of uniform acceleration motion

For axis x

$a_{x}=5.10\frac{m}{s^{2}} \\v_{fx}=3780\frac{m}{s} \\v_{fx}=v_{ox}+a_{x}*t\\v_{ox}=v_{fx}-a_{x}*t\\v_{ox}=3780 \frac{m}{s}-5.1\frac{m}{s^{2} }*645s\\v_{ox}=490.5\frac{m}{s}$

For axis y

$a_{y}=7.30\frac{m}{s^{2}} \\v_{fy}=4470\frac{m}{s} \\v_{fy}=v_{oy}+a_{y}*t\\v_{oy}=v_{fy}-a_{y}*t\\v_{oy}=4470\frac{m}{s}-7.30\frac{m}{s^{2} }*645s\\v_{oy}=-238.5\frac{m}{s}$

Maginuted

$v=\sqrt{v_{xo}^{2} +v_{yo}^{2} } \\v=\sqrt{490.5x^{2} +(-238.5)^{2} }\\v=545.41 \frac{m}{s}$

The direction is knowing when find the angle so

$\beta =tan^{-1}*\frac{v_{yo} }{v_{xo}}\\\beta =tan^{-1}*\frac{-238.5}{490.5}\\\beta =tan^{-1}*-0.48\\\beta =-25.93$

4 0

3 years ago

Determine the pressure P of a 450K Oxygen gas in a gas chamber when its initial pressure is 175Pa has a temp 300K

FrozenT [24]

Answer:

262.5Pa

Explanation:

Given parameters:

P1 = 175Pa

T1 = 300K

T2 = 450K

Unknown:

P2 = ?

Solution:

To solve this problem, we are going to use an adaptation of the combined gas law.

$\frac{P1}{T1}$ = $\frac{P2}{T2}$

Insert the parameters and solve;

$\frac{175}{300}$ = $\frac{P2}{450}$

P2 = 262.5Pa

8 0

3 years ago

A 0.144kg baseball is pitched horizontally at 38.0 m/s. After the baseball is hit by the bat, it moves at the same speed, but in

Hoochie [10]

Answer:

Given:

mass of the ball m = 0.144 kg

velocity v = 38 m/s

now, change in momentum

P = m v- ( - mv)

= 2 mv

=2 x (0.144) x (38)

= 10.944 kg-m/s

Impulse J= F. Δt

change in momentum is equal to impulse

J = 10.944 kg-m/s

we know force is equal to change in momentum per unit time

$F = \dfrac{P}{t}$

$F = \dfrac{10.944}{0.8\times 10^{-3}}$

F = 13.68 x 10³ N

F = 13.68 kN

3 0

3 years ago

2. What do pitch and loudness have in common?

DanielleElmas [232]

Answer:

Both are subject to a persons interpretation

Explanation:

We hear people describe this when somebody is making an irresistible sound. usually people say the baby has a pitch scream.

5 0

3 years ago

insens350 [35]

the middle part in the center of the diagram. the nucleus is always in the center.

3 0

3 years ago