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
iren [92.7K]
3 years ago
13

How do u convert 7.68 cal/sec to kcal/min

Physics
2 answers:
stich3 [128]3 years ago
5 0
<span>First you have to convert 7.68 cal/sec to cal/min to do that, just multiply by 60 So it will be 460.8 cal/min now convert that to kcal/min kcal = kilocalories = 1000 calories. so just divide by 1000 and youll have your answer in kcal/min </span>
Lady bird [3.3K]3 years ago
3 0

Answer:

7.68 cal/sec = 0.4608 kcal/min

Step-by-step explanation:

Here, we need to convert  7.68 cal/sec to kcal/min. We know that,

1\ cal=10^{-3}\ kcal, kcal is kilo calorie

Also, 1 minutes = 60 seconds

Firstly we will convert calorie to kilo calorie as,

7.68\ cal/s=\dfrac{7.68\ cal\times 10^{-3}\ kcal}{1\ cal}\times \dfrac{1}{sec}=7.68\times 10^{-3}\ kcal/sec

Now converting seconds to minutes as,

7.68\times 10^{-3}\ kcal/sec=\dfrac{7.68\times 10^{-3}\ kcal}{1\ sec}\times \dfrac{60\ sec}{1\ min}

So, 7.68 cal/sec = 0.4608 kcal/min

Hence, this is the required solution.

You might be interested in
Most of the resistance of the human body comes from the skin, as the interior of the body contains aqueous solutions that are go
ruslelena [56]

Answer:

a) Resistivity=R.A/L

Here, R=500000ohm, L=1.6m, A=2pi* (0.14/2)*0.002 m2=0.00088.........we have converted quantities into SI units

Resistivity=R.A/L

=500000*0.00088/1.6 = 440/1.6= 275 ohm.meter

b) pskin/pinterior =275/4.8=57.3

For second part, correct option is (A), because cross section area is smaller.

4 0
3 years ago
Determine the magnitude of the current flowing through a 4.7 kilo ohms resistor if the voltage across it is (a) 1mV (b) 10 V (c)
mariarad [96]

Answer:

213 nA

2.13 mA

851e^-t μA

Explanation:

We have a pretty straightforward question here.

Ohms Law states that the current in an electric circuit is directly proportional to the voltage and inversely proportional to the resistance in the circuit. It is mathematically written as

V = IR, since we need I, we can write that

I = V/R

a) at V = 1 mV

I = (1 * 10^-3) / 4.7 * 10^3

I = 2.13 * 10^-7 A or 213 nA

b) at V = 10 V

I = 10 / 4.7 * 10^3

I = 0.00213 A or 2.13 mA

c) at V = 4e^-t

I = 4e^-t / 4.7 * 10^3

I = 0.000851e^-t A or 851e^-t μA

5 0
2 years ago
Why does cold weather feel colder inside?
schepotkina [342]
One reason is that when you have been out in the cold, your hands feet and exposed features of your face will take time to recover as the blood circulation improves and supplied warm blood to capillaries. So the relatively warm room you enter will not immediately feel warm until the blood has regained its normal circulation. Other factors are that windows are cooled from the outside and condensation forms on the inside because of moisture in the air. For this condensation to evaporate requires heat, which will be extracted from the room and the air near the windows will be cooled. The cold air will descend and form a draught at floor level and this will tend to make the room cooler.
8 0
3 years ago
A 15-lb block B starts from rest and slides on the 25-lb wedge A, which is supported by a horizontal surface. Neglecting frictio
xxTIMURxx [149]

The angle of the wedge is 30°.

Answer:

5.88 ft/s

Explanation:

a) The block will slide down due to it's weight.

initial velocity u= 0

final velocity, v

acceleration, a = g sin 30° = 32 ft/s²× sin 30° = 16 ft/s²

Sliding displacement, s = 3ft

Use third equation of motion:

v^2-u^2 = 2as

substitute the values and solve for v

v^2-0 = 2\times 16 \times 3 =96 ft^2/s^2\\v = 9.8 ft/s

b) Use conservation of momentum:

Initial momentum of the system  = 0

final momentum = (15) ( 9.8)+ (25)(v')

v' = 5.88 ft/s

3 0
2 years ago
Two individuals start the same training program at the same time, but one is able to grow muscle faster and larger than the othe
vitfil [10]
I believe the answer is A
7 0
3 years ago
Read 2 more answers
Other questions:
  • The height of a transverse wave from the midpoint to the crest or trough is the .
    5·2 answers
  • Answer these questions with step by step
    7·2 answers
  • Design an experiment (Fair Test) to find out what would be a good insulator for a dog house.
    9·1 answer
  • A 1.5 kg orange falls from a tree and hits the ground in 0.75s. What is the speed of the orange just before it hits the ground?
    15·1 answer
  • Scientific models have two basic types. Please select the best answer from the choices provided T F
    12·2 answers
  • A plumber heats a plastic pipe, softens it, shapes it, and then lets it cool. After it is hardened, the
    12·1 answer
  • Two carts with masses of 4.32 kg and 2.66 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.93 m/s
    11·1 answer
  • Please Help <br><br> Conservation of energy
    6·1 answer
  • Select all of the characteristics associated with freshwater ponds. (Click multiple answers)
    13·1 answer
  • The slope of a distance-versus-time graph shows an object's
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!