If you slide down a rope, it’s possible to create enough thermal energy to burn your...

If you slide down a rope, it’s possible to create enough thermal energy to burn your hands or your legs where they grip the rope. Suppose a 40 kg child slides down a rope at a playground, descending 2.0 m at a constant speed. How much thermal energy is created as she slides down the rope?

Solutions

Expert Solution

m = 40 kg

h=2m

Thermal energy created = loss in potential energy
                                                  = m*g*h
                                                  = 40*9.8*2
                                                   = 784 J

Answer: 784 J

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

Do you think it’s possible for all countries to be developed? Explain your answer

Your task is this: conduct one of the two possible tests on the data in slide...

Your task is this: conduct one of the two possible tests on the data in slide 14 (regression or correlation). Refer to the previous slides in doing the exercise. Be sure to provide a write up (narrative), which explains both the statistical significance (slide 8) and the practical significance (slide 11). A sentence for each kind of significance is sufficient. Perform the appropriate test and provide a narrative write up for the Depression and Anxiety analysis. Remember, state the statistical...

Part A) Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough...

Part A) Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of charcoal) to produce 5.40×102kJ of heat? The balanced chemical equation is as follows: C(s)+O2(g)→CO2(g),ΔH∘rxn=−393.5kJ PartB) What mass of natural gas (CH4) must you burn to emit 260 kJ of heat? CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ Express the mass in grams to three significant figures. Part C) Ammonia reacts with oxygen according to the equation: 4NH3(g)+5O2(g)→4NO(g)+6H2O(g)ΔHrxn=−906kJ Calculate the heat (in kJ) associated with the...

Create a 15 slide PowerPoint presentation of the pediatric condition you selected. Ensure that your presentation...

Create a 15 slide PowerPoint presentation of the pediatric condition you selected. Ensure that your presentation addresses: Developmental dysplasia of the hip Description and etiology of the condition Epidemiology for the condition Pathophysiology Clinical Manifestation Diagnostic evaluation Therapeutic Management: Be sure to address medication as well as surgical and non-surgical management if applicable Care Management to include nursing intervention The presentation should have a title slide and a reference slide. They are not included in the slide count.

For this assignment, you will create three 5-slide presentations for your local Planned Parenthood. The first...

For this assignment, you will create three 5-slide presentations for your local Planned Parenthood. The first presentation is for a monthly information session on puberty and development. They have asked you to come in as a health professional and provide a guest lecturer on the topic of male and female development. The second presentation is for women who are in their first trimester and their partners. They have asked you to explain prenatal development, parturition, and lactation. The final presentation...

Create a 15 slide PowerPoint presentation of the pediatric condition you selected. Ensure that your presentation...

Create a 15 slide PowerPoint presentation of the pediatric condition you selected. Ensure that your presentation addresses: Description and etiology of the condition Epidemiology for the condition Pathophysiology Clinical Manifestation Diagnostic evaluation Therapeutic Management: Be sure to address medication as well as surgical and non-surgical management if applicable Care Management to include nursing intervention The presentation should have a title slide and a reference slide. They are not included in the slide count. Choose a Pediatric Condition and Create a 15...

How does technology affect your primary and secondary groups? Do you think it’s possible to have...

How does technology affect your primary and secondary groups? Do you think it’s possible to have members of a primary group who have never met? What are the effects of technology on group size? dentify the types and sub-types of societal groups. Identify how group size, leadership styles, and conformity impacts group dynamics.

Suppose a beginning physics student asks you if it’s possible for a particle to be at...

Suppose a beginning physics student asks you if it’s possible for a particle to be at two different places at the same instant in time. Use the Double-Slit Experiment to answer the student’s question. Details would be really helpful

1. You slide an object across a horizontal surface, that object will eventually slow down and...

1. You slide an object across a horizontal surface, that object will eventually slow down and stop. What’s causing this and why? 2. Name two instances in your daily life where “conservation of energy” plays a role. 3. In a very general sense, if one object hits another that is stationary, how does the collision’s type (elastic vs. inelastic) affect the energy of the objects? 4. When opening a door, it is easier to do so by pushing on the...

please create a 4-6 slide powerpoint on the doppler effect. Thank you

Subjects