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
masya89 [10]
3 years ago
7

A feverish student weighing 75,000 grams was immersed in 400,000 g of water at 4.0°C to try to reduce the fever. The student's b

ody temperature dropped from 40.0°C to 37.0°C. Assuming the specific heat of the student to be 3.77 J/(g·°C), what was the final temperature of the water?
Physics
1 answer:
schepotkina [342]3 years ago
3 0
Heat lost = (75000)(3.77)(3) = 848250 J = heat gained by water

848250 = 400000(4.814)(T)
T = 0.507 C
4 + 0.507 = 4.507 C
You might be interested in
The volume of a cube is 512 cm3. What would change if the volume of the cube were measured in cubic meters?. . A.. The volume of
Black_prince [1.1K]
We are given with a volume of a cube equal to 512 cm3. In this case, when the volume is expressed to cubic meters, the volume will still stay the same but the number of cubic units would decrease. a centimeter is a smaller unit than a meter, hence the value given should be divided by 1 million to express to m3.
6 0
3 years ago
Read 2 more answers
A car starts at the top of a hill with 200 J of energy, and rolls down a frictionless surface. The isolated system consists of t
Kamila [148]

Answer:

The total energy stays the same but is converted from being stored as gravitational potential energy into kinetic energy of the car as it moves.

Explanation:

the law of conservation of energy states that the total energy of an isolated system remains constant, and since it is gaining speed that energy will be kinetic

6 0
3 years ago
Select all of the answers that apply.
galben [10]
<span>The answers are --

a
) wind direction
b) wind speed
e) intensity of precipitation
f) location of precipitation</span>
6 0
4 years ago
Read 2 more answers
HELPPPPPPP PLEASE! ASAPPPPPP
Sav [38]

Answer:

Answer:

Debt payments to income ratio = 22.74%

Explanation:

Debts payment to Income ratio is calculated as follows:

= \frac{Total\ debt\ payment}{Total\ Income}

Total Income

Total debt payment

We have total debts payment = auto loan payment 685 + student loan payment685+studentloanpayment375 + credit card payment 125 =125=1,185

Total Income = $5,210

Note: Credit card is also a kind of debt as firstly all the expenses are met during the period and then the payment is made at the end of the period, therefore, there is a loan in the period. Therefore, it will be considered for payment of debt.

Debt payments to income ratio = \frac{1,185}{5,210} = 22.74

5,210

1,185

=22.74

That means the debts are 22.74% of income.

3 0
2 years ago
A block of a plastic material floats in water with 42.9% of its volume under water. What is the density of the block in kg/m3?
adell [148]

To solve this problem we will apply the principle of buoyancy of Archimedes and the relationship given between density, mass and volume.

By balancing forces, the force of the weight must be counteracted by the buoyancy force, therefore

\sum F = 0

F_b -W = 0

F_b = W

F_b = mg

Here,

m = mass

g =Gravitational energy

The buoyancy force corresponds to that exerted by water, while the mass given there is that of the object, therefore

\rho_w V_{displaced} g = mg

Remember the expression for which you can determine the relationship between mass, volume and density, in which

\rho = \frac{m}{V} \rightarrow m = V\rho

In this case the density would be that of the object, replacing

\rho_w V_{displaced} g = V\rho g

Since the displaced volume of water is 0.429 we will have to

\rho_w (0.429V) = V \rho

0.429\rho_w= \rho

The density of water under normal conditions is 1000kg / m ^ 3, so

0.429(1000) = \rho

\rho = 429kg/m^3

The density of the object is 429kg / m ^ 3

7 0
3 years ago
Other questions:
  • Hydraulic systems utilize Pascal's principle by transmitting pressure from one cylinder (called the primary) to another (called
    10·1 answer
  • A movie theater is 4 kilometers east and 2 kilometers south of your house.
    13·2 answers
  • How deep in the ocean is the wreckage of the titanic?
    6·2 answers
  • Changing the direction of current flow, will or will not affect the strength of an electromagnet? Pick one: Will or Will Not
    15·2 answers
  • A 0.50 kg object is at rest. A 2.88 N force to the right acts on the object during a time interval of 1.48 s. a) What is the vel
    6·1 answer
  • A projectile is fired with an initial speed of 37.0 m/s at an angle of 43.7 ∘ above the horizontal on a long flat firing range.
    14·1 answer
  • A truck accelerates on a highway from rest to 216 m/s in 10s. What is the magnitude of acceleration?
    7·1 answer
  • A pulley system with a mechanical advantage of 15 is used to lift a 1750 N piano to a third floor balcony that is 7 m above the
    7·1 answer
  • What type of cells don't have cell walls.
    15·2 answers
  • What is the speed of light in a vacuum?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!