All categories

3 years ago

How can energy be transferred in a car?

2 answers:

5 0

Answer: The internal combustion engine in the car converts the potential chemical energy in gasoline and oxygen into thermal energy which is transformed into the mechanical energy that accelerates the vehicle (increasing its kinetic energy) by causing the pressure and performing the work on the pistons.

Step-by-step explanation: hop this helps

Levart [38]3 years ago

5 0

Answer:

turn the ac on

Step-by-step explanation:

put key in the hole then twist then hit max ac there you go enjoy

You might be interested in

Which of the following steps were applied to ABC obtain AA'B'C'?

pickupchik [31]

C. is your answer please give brainliest!

4 0

3 years ago

A scientist begins with 250 grams of a radioactive substance. After 250 minutes, the sample has decayed to 32 grams. Rounding to

s2008m [1.1K]

Answer:

Part 1 : $A=250 e^{-0.008223t}$

Part 2 : Half life is 84 minutes ( approx )

Step-by-step explanation:

Part 1 : Suppose the function that shows the amount( in grams ) of the substance after t minutes,

$A=A_0 e^{kt}$

If t = 0 min, A = 250 grams,

$250=A_0 e^{0}$

$\implies A_0 = 250$

If t = 250, A = 32 grams,

$32 = A_0 e^{250k}$

$32 = 250 e^{250k}$

$0.128 = e^{250k}$

Taking ln both sides,

$\ln(0.128) = 250k$

$\implies k =\frac{\ln(0.128)}{250}=-0.008223$

Hence, the equation that shows this situation,

$A=250 e^{-0.008223t}$

Part 2 : If A = 250/2 = 125,

$125 = 250 e^{-0.008223t}$

$0.5 = e^{-0.008223t}$

Taking ln both sides,

$\ln(0.5) = -0.008223t$

$\implies t =\frac{\ln(0.5)}{-0.008223}\approx 84$

Therefore, the half life of the substance would be 84 minutes.

8 0

3 years ago

What is the equation of a line perpendicular to the line y=(4/9)x-2 that passes through the point (4,3)?

Hoochie [10]

y=(4/9)x-2
This is in slope intercept form (y=mx+b), where m is the slope.
A perpendicular line will have the opposite reciprocal of the slope.
So if the slope here is 4/9, then the perpendicular line's slope will be -9/4.

Now that you have the slope (-9/4) and a point (4, 3), you can use the point-slope formula to find the equation.
y - y₁ = m(x - x₁)
y - 3 = (-9/4)(x - 4)
y - 3 = (-9/4)x + 9
y = (-9/4)x + 12

So the answer will be:
C. y= -(9/4)x+12

3 0

4 years ago

WORTH 60 POINTS! PLZ HELP! BRAINLIEST OPPORTUNITY!

makkiz [27]

Answer:

x = 10

Step-by-step explanation:

2) -3x + 17 = -x - 3

4) 20 = 2x

1) -3x + 12 + 5 = -x -3

5) 10 = x

3) 17 = 2x - 3

-3(x - 4) + 5 = -x - 3

-3x + 12 + 5 = -x - 3

-3x + 17 = -x -3

+3x +3x

17 = 2x - 3

+3 + 3

20 = 2x

10 = x

I hope that this helps! :)

5 0

3 years ago

The set of ordered pairs below represents a linear function.

Doss [256]

Pretty sure ( -2,-7) because from -1 you go over one then each y is going down 3 so -4 - 3 is -7

8 0

3 years ago