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2 years ago

6

Which components of the atom has a positive charge

1 answer:

djyliett [7]2 years ago

7 0

Protons have a positive charge

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For a substance to change from a gas to a liquid what must happen to its particles

baherus [9]

Answer: The answer is A!

Explanation:

Just took the Apex quiz.

5 0

3 years ago

Read 2 more answers

Lewiston and Vernonville are 208 miles apart. A car leaves Lewiston traveling towards Vernonville, and another car leaves Verno

iragen [17]

Answer:

Average speed of the car A = 70 miles per hour

Average speed of the car B = 60 miles per hour

Explanation:

Average speed of the car A is $v_{A} =\frac{x_{A} }{t_{A} }$ (Equation A) and Average speed of the car B is $v_{B} =\frac{x_{B} }{t_{B} }$ (Equation B), where $x_{A}$ and $x_{B}$ are the distances and $t_{A}$ and $t_{B}$ are the times at which are travelling the cars A and B respectively.

We have to convert the time to the correct units:

1 hour and 36 minutes = 96 minutes

$96 minutes . \frac{1 hour}{60 minutes} = 1.6 h$

From the diagram (Please see the attachment), we can see that at the time they meet, we have:

$v_{A} = \frac{208-x}{1.6h} + 10\frac{miles}{h}$ (Equation C)

$v_{B} = \frac{208-x}{1.6h}$ (Equation D)

From Equation A and C, we have:

$\frac{208-x}{1.6}+10 = \frac{x}{1.6}$

208-x+16 = x

208 + 16 = 2x

$x = \frac{224}{2}$

x = 112 miles

Replacing x in Equation A:

$v_{A} = \frac{112miles}{1.6h}$

$v_{A} = 70 miles per hour$

Replacing x in Equation B:

$v_{B} = \frac{208miles-112miles}{1.6h}$

$v_{B} = \frac{96miles}{1.6h}$

$v_{B} = 60 miles per hour$

3 0

3 years ago

For rectilinear motion the relationship between displacement, s, velocity, v, acceleration, a, and time, t, s = s0 + v0t + (1/2)

stiv31 [10]

The rectilinear motion is given as:

s = s0 + v0 t + (1/2) a t^2

We can see that the variables stand for:

s = final distance

s0 = initial distance

v0 = initial velocity

t = time

a = acceleration

<span>We can see that all these variable are always constant EXCEPT acceleration. The rectilinear motion can only be applied if and only if acceleration is CONSTANT.</span>

6 0

3 years ago

Which is an electric circuit that produces a magnetic field?

snow_tiger [21]

Answer:

its and electromagnet

6 0

2 years ago

A glacier advanced down a mountain from an elevation of 2010 m to 1780 m in 5 years. What was the glaciers rate of change in a y

Ivanshal [37]

Answer:

The solution of the given problem is provided in the following subsection.

Explanation:

According to the question,

The change in the height of the glacier will be:

= $1780-2010$

= $-230$

Change in time,

= 5 years

Now,

The rate of change will be:

= $\frac{m}{years}$ ∵ (1 year = 12 months)

= $\frac{230}{5}$

= $-46 \ m/years$

or,

The rate of change will be:

= $\frac{m}{months}$ ∵ (5 years in months = 5×12 months)

= $\frac{-230}{5\times 12}$

= $\frac{-230}{60}$

= $=3.83 \ m/months$

6 0

2 years ago