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
Art [367]
3 years ago
7

increase of green house gases is warming the oceans and melting sea ice at the poles. This causes changes in climate. Name three

earth spheres which interact in this process. Justify your answer.
Physics
1 answer:
Ahat [919]3 years ago
4 0

core, surface atmosphere

You might be interested in
A sports car is advertised to be able to stop in a distance of 50.0 m from a speed is 99.0km/h. What is its acceleration in m/s2
Shtirlitz [24]
99.0km/h =27.5m/s (this is the initial speed)
The final speed is zero
The distance is 50.0m
Therefore you use the formula:
vfinal²=vinitial²+2ad
a=(vfinal²-vinitial²)/2d
 = (0²-27.5²)/(2x50.0)
 =-7.5625 or in correct sigdigs -7.56m/s²
Hope this helps!
4 0
3 years ago
A hot-water bottle contains 787 g of water at 75∘C. If the liquid water cools to body temperature (37 ∘C), how many kilojoules o
IgorC [24]

Answer:

Q = 787 gr * 1 \frac{cal}{gr C} *(37-75)C = -29906 cal

So then the answer for this case would be 29906 cal but we need to convert this into KJ and we know that 1 cal = 4.184 J and if we convert we got:

29906 cal *\frac{4.184 J}{1 cal}* \frac{1KJ}{1000 J}= 125.127 KJ

Explanation:

For this case we know the mass of the water given :

m = 787 gr

And we know that the initial temperature for this water is T_i =75 C.

We want to cool this water to the human body temperature T_f = 37 C

Since the temperatures given are not near to 0C (fusion point) or 100C (the boling point) we don't need to use latent heat, then the only heat involved for this case is the sensible heat given by:

Q= m c_p \Delta T

Where c_p represent the specific heat for the water and this value from tables we know that c_p =1 \frac{cal}{gr C} for the water.

So then we have everything in order to replace into the formula of sensible heat and we got:

Q = 787 gr * 1 \frac{cal}{gr C} *(37-75)C = -29906 cal

So then the answer for this case would be 29906 cal but we need to convert this into KJ and we know that 1 cal = 4.184 J and if we convert we got:

29906 cal *\frac{4.184 J}{1 cal}* \frac{1KJ}{1000 J}= 125.127 KJ

8 0
3 years ago
Read 2 more answers
Which f the following are true for gravity
alisha [4.7K]

Answer:

Explanation:

number A

6 0
3 years ago
Why solar panels are usually painted black​
spayn [35]

Answer:

The silicon used to make monocrystalline solar cells has a high level of purity. ... Because of the way light interacts with a monocrystalline silicon layer, monocrystalline solar panels appear black in color.

3 0
2 years ago
The direction of the magnetic field is parallel to the field line at any point in space. A small compass will point in a directi
Slav-nsk [51]
I think the answer is false
6 0
2 years ago
Other questions:
  • You jump off a platform 134 m above the Neuse River. After you have free-fallen for the first 40 m, the bungee cord attached to
    10·2 answers
  • A person is standing on a scale placed on the floor of an elevator. At time t1, the elevator is at rest and the reading on the s
    11·2 answers
  • Please help me with this homework
    10·2 answers
  • Please help on this one? :)
    7·1 answer
  • Estefan has determined his BMI at 31. Explain how he can apply the FITT training principles to improve his body composition.
    6·1 answer
  • If you calculate the thermal power radiated by typical objects at room temperature, you will find surprisingly large values, sev
    8·1 answer
  • Select the statements that describe a vector. Check all that apply
    7·2 answers
  • A test charge is introduced into the electric field of a charge. It feels a force of 2 F where the electric feild is 4 E. What w
    13·1 answer
  • Which formula describes Boyle's law?
    5·1 answer
  • What is the impact of roller coaster on human's body
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!