1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilya [14]
3 years ago
5

The specific heat of a certain type of metal is 0.128 J/(g⋅∘C).0.128 J/(g⋅∘C). What is the final temperature if 305 J305 J of he

at is added to 94.0 g94.0 g of this metal, initially at 20.0 ∘C?
Physics
1 answer:
Makovka662 [10]3 years ago
6 0

Answer:

45.3°C

Explanation:

Heat gained = mass × specific heat × increase in temperature

q = mC (T − T₀)

Given C = 0.128 J/g/°C, m = 94.0 g, q = 305 J, and T₀ = 20.0°C:

305 J = (94.0 g) (0.128 J/g/°C) (T − 20.0°C)

T = 45.3°C

You might be interested in
Average running speed is 8km/h. Convert this to m/s :
rosijanka [135]

Answer:

Im not sure if you mean miles per hour or meters per hour but if it is miles it is 4.97 miles per hour and if it is meters then it is 8000 meters per hour

Explanation:

Sorry if I'm wrong

6 0
3 years ago
Read 2 more answers
The first physicist gets a second physicist to help. They both push on the crate, parallel to the surface of the incline, and it
Romashka-Z-Leto [24]

Answer:

F_aplied = fr

Explanation:

Newton's second law states that the force is proportional to the acceleration of the system, as in this case they indicate that the body moves at constant speed, the acceleration is zero, therefore

                 F_applied - fr = 0

                 F_aplied = fr

therefore the force applied by people is equal to the friction force

3 0
3 years ago
A motorcycle moving 18.8 m/s has<br> 57800 J of KE. What is its mass?<br> (Unit = kg)
Nady [450]

Answer:10

Explanation:

3 0
3 years ago
Read 2 more answers
An unwary football player collides with a padded goalpost while running at a velocity of 5.70 m/s and comes to a full stop after
ollegr [7]
The relationship between the initial velocity, final velociy, distance, and deceleration can be expressed in the following equation.
          
                     2(a)(0.270 m) = 0² - (5.70 m/s)²

The value of a (which is the deceleration) is 0.06 m/s². Thus, the answer is that the deceleration value is approximately 0.06 m/s².
6 0
4 years ago
Consider a 10 gram sample of a liquid with specific heat 2 J/gK. By the addition of 400 J, the liquid increases its temperature
stich3 [128]

40 J/g is the heat of vaporization of the liquid.

Answer: Option D

<u>Explanation:</u>

Given that mass of liquid sample: m = 10 g

And, Specific heat of the liquid: S = 2 J/g K

Also, the increase in the temperature of the liquid,  \Delta T = T_{2}-T_{1} = 10 K

Therefore, the total amount of heat energy required is given by:

              q_{1} = m \times S \times\left(T_{2}-T_{1}\right) = 10 \times 2 \times 10 = 200 J

According to the given data in the question,

Total heat energy supplied, q = 400 J

Rest of heat would be q_{2}=q-q_{1}=400-200=200 \mathrm{J}

Now, 200 J vaporizes the mass, half of the liquid from full portion boiled away. So,

                 m^{\prime} = \frac{10}{2} = 5 \mathrm{g}

Latent heat of vaporization of the liquid is L_{v}. It can be calculated as below,

                       q_{2} = m^{\prime} L_{v}

                       L_{v} = \frac{q_{2}}{m^{\prime}} = \frac{200}{5} = 40 \mathrm{J} / \mathrm{g}

5 0
3 years ago
Other questions:
  • How far must the point charges q1 = +7.22 µc and q2 = -32.5 µc be separated for the electric potential energy of the system to b
    9·1 answer
  • Special relativity cannot be used to study an object in which frame of reference
    6·2 answers
  • A circuit consists of a lightbulb, capacitor, battery, and open switch all in series. After the switch is closed, describe what
    7·1 answer
  • Which measure of central tendency refers to the value that appears most frequently in a data set?
    12·2 answers
  • A car slows down at -5.00 m/s² until it comes to a stop after travelling 15.0 m. What was the initial speed of the car?
    15·1 answer
  • Please need help with this
    13·1 answer
  • A block is at rest on the incline shown in the gure. The coefficients of static and kinetic friction are 0.6 and 0.51, respec- t
    11·1 answer
  • Images formed by a convex mirror are always ​
    10·1 answer
  • Electron spin: Radio astronomers can detect clouds of hydrogen too cool to radiate optical wavelengths of light by means of the
    5·1 answer
  • What occurs when the moon blocks the view of the sun
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!