What are three ways that extra carbon is getting to the atmosphere?

A car starting from rest moves with a constant acceleration of 10 mi/hr2 for 1 hour, then decelerates at a constant 5 mi/hr2 unt

Vinvika [58]

Answer:

The total distance traveled by the car (S) = 15 mi

Explanation:

Total acceleration ( $a_{1}$ ) = 10 mi / $h^{2}$

Time (t) = 1 hour

Deceleration ( $a_{2}$ ) = - 5 mi / $h^{2}$

From law of speed we know that V = u + $a_{1}$ t -----------(1)

Where V = Final speed

u = initial speed and t = time period

Car starts from rest so initial speed is zero so u = 0

Then equation 1 becomes V = $a_{1}$ t = 10 × 1 = 10 mi / h ---------(2)

The distance traveled by the car $S_{1}$ = u t + $\frac{1}{2}$ × $a_{1}$ × $t^{2}$ -------------(3)

Put all the values in equation we get $S_{1}$ = 0 + $\frac{1}{2}$ × 10 × $1^{2}$

$S_{1}$ = 5 mi ---------------(4)

This is the distance traveled by the car in 1 hour.

In second case when car starts decelerates the equation of motion becomes

⇒ V = u - a t -----------(5)

final speed in this case = 0 and initial speed (u) = 10 mi / h

⇒ 0 = 10 - 5 t

⇒ 5 t = 10

⇒ t = 2 hours

Distance traveled by the car in to hours $S_{2}$ = u t + $\frac{1}{2}$ × $a_{2}$ × $t^{2}$

⇒ $S_{2}$ = 10 × 2 - $\frac{1}{2}$ × 5 × $2^{2}$

⇒ $S_{2}$ = 20 - 10

⇒ $S_{2}$ = 10 mi

This is the distance traveled by the car in the next two hours.

Thus the total distance traveled by the car = $S_{1}$ + $S_{2}$

⇒ S = 5 + 10 = 15 mi

3 0

4 years ago

The heating curve of an ice-water mixture that is slowly heated to 125??C contains three sloped and two level portions. What do

BigorU [14]

I believe the answer is D. phase changes. The two level portions represents change of state that does not involve change in temperature (at a constant temperature). The first level represents a change of solid to liquid;p where the ice melts and becomes water by gaining the latent heat of fusion, while the other level represents a change of state from liquid to gas; the water changes to steam (water vapor) by gaining the latent heat of vaporization.

8 0

4 years ago

Read 2 more answers

A baseball has a mass of 145 g. A pitcher throws the baseball so that it accelerates at a rate of 80 m/s2 How much force did the

Katena32 [7]

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

mass is in kg

1000 g = 1 kg

145 g = 0.145 kg

From the question we have

force = 0.145 × 80

We have the final answer as

Hope this helps you

6 0

3 years ago

A cosmic ray travels 60.0 km through the earth's atmosphere in 500 μs , as measured by experimenters on the ground. You may want

zavuch27 [327]

Answer:

t' = 458.26 μs

Explanation:

given,

distance traveled by the cosmic ray = 60 Km

time = 500 μs

time taken for the journey according to cosmic ray = ?

now,

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

$v =\dfrac{60\times 10^3}{500\times 10^{-6}}$

v = 1.2 x 10⁸ m/s

according to time dilation formula

$t' = t\sqrt{1-\dfrac{v^2}{c^2}}$

$t' = 500\sqrt{1-\dfrac{(1.2\times 10^8)^2}{(3\times 10^8)^2}}$

t' = 500 x 0.9165

t' = 458.26 μs

6 0

3 years ago

You must make an aqueous solution that will be a good conductor of electricity. You can pick two substances to add to the water.

mr_godi [17]

Answer: The answer is hydrochloric acid

And Salt

Explanation:

4 0

3 years ago