Explanation:
density(d) = mass(m) × volume(v)
given:
mass = 4.3 g = 0.0043 Kg
volume = 2.7 cm³ = 0.027 m³
= 0.0043 Kg / 0.0027 m³
= 0.15 Kg/m³
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Answer:
Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
Explanation:
Hi
Answer:
Explanation:
In the absence of external forces
Δ
→
p
=
0
so
m
b
1
→
v
b
1
+
m
b
2
→
v
b
2
=
m
a
1
→
v
a
1
+
m
a
2
→
v
a
2
Here we have
m
b
1
=
1000
,
→
v
b
1
=
25
ˆ
i
m
b
2
=
2000
,
→
v
b
2
=
15
ˆ
j
m
a
1
=
1000
,
→
v
a
1
=
→
v
a
m
a
2
=
2000
,
→
v
a
2
=
→
v
a
so
1000
⋅
25
ˆ
i
+
2000
⋅
15
ˆ
j
=
(
1000
+
2000
)
→
v
a
so
→
v
a
=
(
25
3
ˆ
i
+
10
ˆ
j
)
with
∣
∣
→
v
a
∣
∣
=
5
√
61
3
=
13.02
∠
→
v
a
=
arctan
(
10
/
(
25
3
)
)
=
50.2
∘
Kinetic energy before
K
b
=
1
2
m
b
1
∣
∣
→
v
b
1
∣
∣
2
+
1
2
m
b
2
∣
∣
→
v
b
2
∣
∣
2
Kinetic energy after
1
2
(
m
b
1
+
m
b
2
)
∣
∣
→
v
a
∣
∣
2
so
Δ
K
=
K
a
−
K
b
=
−
283333
.
[J]
