Question

A lump of lead with a mass 0.5kg is dropped from a height of 20m onto a hard surface. It does not rebound but remains there for a long time.
A) what is the increase in heat
B)what is the increase in internal energy
C)what is the increase in temperature

Answer 1

potential energy --> kinetic energy --> heat energy

energy = m g h (in Joules)

energy / specific heat = temp change

A) and B) look like the same thing ... energy

Answer 2

heat 0 and internal energy 100 b/c u=w and also at q is 0 at mekhanical work

Answer 3

q is 34 ande internal energy 56

Answer 4

0, 100, 0.0016

Answer 5

Q is 34

Answer 6

∆Q=100 J,potential energy =mgh=>∆Q
∆U= ∆Q
∆W=0
∆T=1.56 K

Answer 7

alump of lead with mass 0.50kg isdropped from aheight of 20m on to hard surface it does not rebound but remains there at rest for along period of time

Answer 8

A lump of lead with mass 0.50 kg is dropped
from a height of 20 m onto a hard surface. It
does not rebound but remains there at rest for
a ∆Q, (b) ∆W and (c) ∆U for the lead during
this process?long period of time.

Answer 9

∆Q, (b) ∆W and (c) ∆U for the lead during
this process?

Answer 10

What is the temperature change in the lead
immediately after the impact? [specific
heat capacity of lead = 128 kJ/kg K]

Answer 11

I need the right answer

Answer 12

I need help

Answer 13

I need help

Answer 14

Thanks

Answer 15

DAMBI DOLO

Answer 16

100

Answer 17

correct step answer

Answer 18

I need the right answer

Answer 19

good

Answer 20

A lump of lead

Answer 21

Student

Answer 22

I need the right answer