HELP PLEASE Example: Convert 25°C to °F.

Formula: °F = (9/5) (°C) + 32  °C is given so I am solving for °F.
°F = (9/5) (25) + 32
=(1.8*25)+ 32
=45+32
=77
Answer= 77°F is equal to 25°C

A. Convert 35°C to °F

B. Convert 80°F to °C

C. Convert 15°C to °F

D. Convert 25°F to °C

Answers

Answer 1

Answer: Angel ! You have a formula, and you have an example that's
completely worked out. The ONLY POSSIBLE reason that you
could still need help is that you're letting math scare you.

I'll do 'A' for you, 'B' most of the way, and get 'C' set up.
If THAT's not enough for you to run with and finish them all,
then you and I should both be embarrassed.

Write the formula on the wall:

   °F = (9/5) °C + 32°

A). Convert 35° C °F = (9/5)(35°) + 32°

(9/5)(35) = 63 °F = 63° + 32°

   °F = 95°
____________________________________

B). Convert 80°F to °C
       The formula: °F = (9/5) °C + 32°

°F = 80    80 = (9/5)°C + 32

Subtract 32 from each side: 48 = (9/5)°C

Multiply each side by 5 : 240 = (9) C

Now you take over:
_________________________________________

C). Convert 15°C to °F.
       The formula: °F = (9/5) °C + 32°

°C = 15 °F = (9/5) 15° + 32

(9/5) (15) = 27
   Go !    °F =

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Facts about Alessandro Volta?

Answers

Alessandro Volta :

- He was born on February 18, 1745 in Côme (Italia).
- He died on March 5, 1827 in Côme (Italia).
- Inventor of the electric battery. (voltaic pile)
- He was an Italian scientist.

Do not forget to vote for a "best answer" to recover a quarter of your points! =)

Invented the battery
Italian
Has 3 kids

Explain the Impulse-Momentum Theorem.

Answers

The impulse-theorem states that the change in momentum of an object is equal to the impulse exerted on it

Explanation:

The impulse-theorem states that the change in momentum of an object is equal to the impulse exerted on it.

Mathematically, we have:

- The impulse is defined as the product between the force exerted (F) and the duration of the collision ( $\Delta t$ ):

$I=F \Delta t$

- The change in momentum is equal to the product between the mass of the object (m) and the change in velocity ( $\Delta v$ ):

$\Delta p = m \Delta v$

So, the theorem can be written as

$F\Delta t = m \Delta v$

This theorem can be proved by using Newton's second law. In fact, we know that

$F=ma$ (1)

where a is the acceleration of the object. However, we can re-write the acceleration as the rate of change of velocity:

$a=(\Delta v)/(\Delta t)$

Therefore, (1) becomes:

$F=m(\Delta v)/(\Delta t)$

And by re-arranging,

$F\Delta t = m \Delta v$

Which is exactly the formula of the impulse theorem.

Learn more about impulse and momentum:

brainly.com/question/9484203

#LearnwithBrainly

Determine the quantity of work done when a crane lifts a 100-N block from 2 m above the ground to 6 m above the ground. A.
100 J

B.
200 J

C.
400 J

D.
600 J

Answers

Answer:

C. 400 J

Explanation:

In physics, work is defined as

$W=F * \Delta d$

Where $W$ is the word done, $F$ is the force that move the object and $\Delta d$ is the change of the position of the object.

In this case, we have

$F= 100 \ N$

$\Delta d= 6m - 2m = 4m$ , remember that the difference refers to the actual subtraction between the final point and the initial point of the object.

Replacing these values, we have

$W= 100 \ N * 4m\nW=400 \ Joules$

Therefore, the right answer is C. The work done is 400 Joules

Answer:

400 J

Explanation:

I just took the test and can confirm this.

what is required to bring about a phase change 1.an increase or decrease in pressure 2.an increase or decrease in energy 3.an increase in energy only 3.a decrease in energy only

Answers

Answer: An increase or decrease in energy!

Explanation: I just took the quiz, I got it wrong with the increase or decrease of pressure. This is the right answer nowww.

A metal ball of mass 2 kg is supported by a massless inextensible string, 12 cm long. A horizontal force displaces the ball by 30oto the vertical so that the string remains taut. Find:a) the horizontal force.b) the tension in the thread.

Answers

As it is given that 2 kg mass is suspended by 12 cm long thread and then a horizontal force is applied on it so that it remains in equilibrium at 30 degree angle

So here we can use force balance in X and Y directions

now for X direction or horizontal direction we can use

$F = Tsin30$