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
forsale [732]
3 years ago
13

On a winter day with a temperature of -10°C, 500g of snow (water ice) is brought inside where the temperature is 18 °C. The snow

warms, then melts to water, and then warms to room temperature. What is the total amount of heat energy absorbed by the snow in this process?
Physics
1 answer:
Serjik [45]3 years ago
7 0

Answer:

Explanation:

Mass of ice m = 500g = .5 kg

Heat required to raise the temperature of ice by 10 degree

= mass of ice x specific heat of ice x change in temperature

= .5 x 2093 x 10 J

10465 J

Heat required to melt the ice

= mass of ice x latent heat

0.5 x 334 x 10³ J

167000 J

Heat required to raise its temperature to 18 degree

= mass x specific heat of water x rise in temperature

= .5 x 4182 x 18

=37638 J

Total heat

=10465 +167000+ 37638

=215103 J

You might be interested in
a child is riding a bike at a speed of 0.6m/s with a total kinetic energy of 12.4J.If the mass of the child is 30kg, what is the
Nesterboy [21]
Ek=kinetic energy  (J)
m=mass of object (Kg)
v=speed of object  (m/s)

We have the following formula:

Ek=(1/2)mv²   ⇒ m=2(Ek)/v²

In this case:
m= mass of the child + mass of the bike
m=30 kg + m₁       (m₁=mass of the bike).

We would have to modify our formula like this:

m=2(Ek)/v²
m=30 kg + m₁


30 kg +m₁=2(Ek)/v²
m₁=2(Ek)/v²-30 kg

We have the following data:

v=0.6 m/s
Ek=12.4J
m=30 Kg + m₁

Therefore:

m₁=2(Ek)/v²  - 30 kg
m₁=2(12.4 J)/(0.6 m/s)²  - 30 kg
m₁=24.8 J/(0.36 m²/s²)  -30 kg
m₁=68.89 Kg - 30 kg
m₁=38.89 Kg

Answer: the mass of the bike is 38.89 Kg. 



8 0
3 years ago
Read 2 more answers
A box moves 5m horizontally when force F=10N is applied at an angle 0=30°.
True [87]

Answer:

43.3J

Explanation:

Given parameters:

Force  = 10N

Distance  = 5m

Angle  = 30°

Unknown:

Work done  = ?

Solution:

Work done is the force applied to move a body through a particular distance;

 Work done  = Force x distance cos Ф

Now insert the parameters and solve;

     Work done  = 10  x 5 cos 30 = 43.3J

7 0
3 years ago
Im pretty sure I know which one just makin sure
AleksandrR [38]

Answer:

shivering raises your body temperature

4 0
3 years ago
Plyometric helps strengthen your bones true or false
MatroZZZ [7]
Plyometric does indeed help strengthen your bones
3 0
3 years ago
Which of the following statements is not true regarding atmospheric pressure?
NISA [10]
When atmospheric pressure is higher than the absolute pressure of a gas in a container.
8 0
3 years ago
Read 2 more answers
Other questions:
  • A bag is gently pushed off the top of a wall at A and swings in a vertical plane at the end of a rope of length l. Determine the
    12·1 answer
  • Rearrange the Coulomb's Law formula to find distance(r)
    12·2 answers
  • Can you check this? Samantha swam upstream for some distance in one hour. She then swam downstream the same river for the same d
    14·2 answers
  • Water that flows from behind a large dam can cause machines to produce electricity. What change take place? Heat energy into mec
    12·2 answers
  • Your grandfather clock's pendulum has a length of 0.9930 m. if the clock loses 60 seconds per day, should you increase or decrea
    7·2 answers
  • Traditional explosives use the energy released by chemical reactions. Nuclear weapons use the energy released by nuclear reactio
    14·2 answers
  • Which of the following is an example of kinetic energy being converted to potential energy? A. At an ice rink, an ice skater giv
    12·2 answers
  • A fisherman sees 7 wave crests go by in 10.0 s. The crests are 2.43 m apart. Find the period of the wave. (Unit = s)​
    11·2 answers
  • Help me besties PLEASE ;-;​
    8·1 answer
  • What would the acceleration of a car be from a stoplight if it started at 0 m/s and reached a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!