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
Klio2033 [76]
3 years ago
13

A student has a mass (including clothes and shoes) of 65.0 kg. She drinks a 12 oz. can of soda, with a nutritional energy conten

t of 140 Cal. Assuming that the efficiency of her muscles is 20%, how high can she climb without losing weight?
Conversion: 1 Cal = 1,000 cal = 4,180 J
Physics
1 answer:
Vikentia [17]3 years ago
4 0

She can climb 0.92 m without losing weight.

<u>Explanation:</u>

Gravitational potential energy is the energy consisting of the product of mass, gravity and height.

1 cal = 4184 J

140 cal = 585760 J

Energy = 585760 J,  m = 65.0 kg = 65000 g,   Efficiency = 20 %

                                  GPE = mgh

where m represents the mass

           g represents the gravity,

           h represents the height.

                             585760 = 65000  9.8  h

                                        h = 0.92 m.

You might be interested in
Am arrow of mass 1000kg is shot into a wooden block of mass 5000lg lying at rest in a smooth surface.If the arrow travels 15m/s
Ber [7]

Answer:

Vf=3

Explanation:

you must first write your data

data before impact

M1=1000 M2=5000

V1=0 m/s V2 =0m/s

data after impact

M1=1000 M2=5000

V1=15m/s V2=?

M1V1 +M2V2=M1V1 +M2V2f

(1000)(0)+(5000)(0)=(1000)(15)+(5000)Vf

0=15000+5000Vf

- 15000÷5000=5000Vf÷5000

Vf= -3

Vf =3

6 0
2 years ago
In 1965, a group of students wore black arm bands to school in protest of American policies in Vietnam. Administrators banned th
Ede4ka [16]

Answer:

protected under students first amendment rights

Explanation:

did the studyisland :)

4 0
3 years ago
About how many centimeters will make an inch?<br> 02<br> O 10<br> 100<br> 200
Tresset [83]
There is approximately 2.54 cm that equals to 1 inch. So your closet answer would be the first choice. :)
7 0
3 years ago
Read 2 more answers
Why were epicycles necessary in ptolemy’s model of the universe?
Liono4ka [1.6K]

epicycles were orbits within orbits used to explain discrepancies between expected and observed planetary movement, including the appearance of planets slowing down, speeding up, and moving backward.

3 0
3 years ago
Read 2 more answers
Which sentence describes an example of sublimation?
k0ka [10]

answer C is the correct one

7 0
3 years ago
Other questions:
  • What is the efficiency of a tractor that has a work output of 300j and a work input of 400j
    11·1 answer
  • Positive ions from a base and negative ions from an acid form a .
    5·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    6·1 answer
  • Explain why the elements of the same group exhibit the same chemical behavior​
    12·1 answer
  • Select the correct answer. x y 2.5 6.25 9.4 88.36 15.6 243.63 19.5 380.25 25.8 665.64 The table lists the values for two paramet
    12·1 answer
  • A 2200 kilogram car is accelerating at 3.4 m/s/s. what is the NET force?
    6·1 answer
  • A piece of glass with a flat surface is at the bottom of a tank of water. If a ray of light traveling in the glass is incident o
    10·1 answer
  • Convert the decimal number 61078 to binary by using sum-of-weights method​
    15·1 answer
  • Identify the vibrating media in three different types of musical instruments
    15·1 answer
  • Which of the following statements is true about transverse waves?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!