# Physics test

Jun 17th, 2015
Studypool Tutor
Price: \$10 USD

Tutor description

2. A lead ball at 30°C is dropped from a height of 6.0 km. The ball gets heated due to air resistance, and it completely melts just before reaching the ground. The molten substance falls slowly on the ground. Specific heat capacity of lead is 126 J/kg°C, and melting point is 330°C.

Word Count: 1434
Showing Page: 1/4
Section 1Physics1.The following figure shows the graph of pressure versus density at three differenttemperatures for an ideal gas.(a) T1 > T2 > T3(c) T1 < T3 < T22.3.(b) T1 > T3 > T2(d)information insufficientA lead ball at 30C is dropped from a height of 6.0 km. The ball gets heated due to air resistance,and it completely melts just before reaching the ground. The molten substance falls slowly on theground. Specific heat capacity of lead is 126 J/kgC, and melting point is 330C. Assumingthat loss in mechanical energy is used to heat the ball, the latent heat of lead would be(a) 2.4 l04 J.kg(b) 3.6 104 J/kg(c) 6.0 104 J/kg(d) 2.22 104 J/kgFor a process on a system (gas enclosed in a vessel), the p-V graph has been isbeen is shown in the following figure. For this process, three statements aregiven as follows:I. During the process, work done by the system is continuously increasing.II During the process, work done by the system is continuously decreasing.III. During the process, internal energy of the gas is continuously increasing.IV. During the process, heat supplied to the system is continuously decreasing.(a) All the four state

## Review from student

Studypool Student
" The best tutor out there!!!! "

1831 tutors are online

### Other Documents

06/17/2015

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors