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
Yanka [14]
3 years ago
15

You are given a sample of metal and asked to determine its specific heat. You weight the sample and find that its weight is 28.4

n.Ypu carefully add of heat heat energy to he sample and find that its temperature rises.Ehat is the samples specific heat?
Physics
1 answer:
lidiya [134]3 years ago
8 0

Answer:

The samples specific heat is 14.8 J/kg.K

Explanation:

Given that,

Weight = 28.4 N

Suppose, heat energy E=1.25\times10^{4}\ J

Temperature = 18°C

We need to calculate the samples specific heat

Using formula of specific heat

Q=mc\Delta T

c=\dfrac{Q}{m\Delta T}

Where, m = mass

c = specific heat

\Delta T = temperature

Q = heat

Put the value into the formula

c=\dfrac{1.25\times10^{4}}{\dfrac{28.4}{9.8}\times(18+273)}

c=14.8\ J/kg. K

Hence, The samples specific heat is 14.8 J/kg.K

You might be interested in
You need to design a photodetector that can respond to the entire range of visible light. True or False
Rasek [7]

Answer: True

Explanation:

A photo detector that can respond to the entire rang of visible light can be design, it is true.

Photo detector is a device in an optical receiver which receives optical signals and convert it to electric signal. It is the key device position in front of the optical receiver.

7 0
3 years ago
You have a spring-loaded air rifle. When it is loaded, the spring is compressed 0.3 m and has a spring constant of 150 N/m. In j
Feliz [49]

The potential energy of the spring is 6.75 J

The elastic potential energy stored in the spring is given by the equation:

E= \frac{1}{2} kx^2

where;

k is the spring constant

x is the compression/stretching of the string

In this problem, we have the spring as follows:

k = 150 N/m is the spring constant

x = 0.3 m is the compression

Substituting in the equation, we get

E=\frac{1}{2} (150) (0.3)^2

E=6.75J

Therefore. the elastic potential energy stored in the spring is 6.75J .

Learn more about potential energy here:

brainly.com/question/10770261

#SPJ4

6 0
1 year ago
Discuss why Wolpert says we have a brain.
ycow [4]

Answer:

“We have a brain for one reason and one reason only, and that's to produce adaptable and complex movements,” stated Wolpert, Director of the Computational and Biological Learning Lab at the University of Cambridge. ... The evidence for this is in how well we've learned to mimic our movements using computers and robots.

8 0
2 years ago
Read 2 more answers
Which two statements describe how ultrasound technology produces an image of a baby before it is born?
Elan Coil [88]

Answer:a and c

Explanation:

8 0
3 years ago
Read 2 more answers
What forces act to pull the poles of a magnet together, or to push them apart?​
masya89 [10]

Answer:

Gravity,

I hope this correct

4 0
3 years ago
Other questions:
  • An 850-lb force is applied to a 0.15-in. diameter nickel wire having a yield strength of 45,000 psi and a tensile strength of 55
    11·1 answer
  • What is the equilibrium concentration of ibr?
    10·1 answer
  • The north and south poles of a magnetic field produced by an electromagnet will switch when the direction of the BLANK changes.
    5·1 answer
  • how does the electric force between two charged particles change if the distance between them is increased by a factor of 3? a.
    10·2 answers
  • A box sits on the back of a flatbed truck. If the coefficient of static friction between the box and the truck bed is μs = 0.400
    12·1 answer
  • "The International Space Station (ISS) orbits at a distance of 350 km above the surface of the Earth. (a) Determine the gravitat
    7·1 answer
  • The space program contributes a great deal to enrich the lives of Floridians and beyond. One way that NASA brings an income to F
    5·1 answer
  • Explain why water boiling in a container stops<br>boiling momentarily when the lid is removed​
    5·1 answer
  • A computer simulation is an example of what?
    6·1 answer
  • In lab, a radiation detector was used to calculate the background radiation. The
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!