A
1
B
2
C
3
D
4
E
(acceleration due to gravity)
A
5
F
6
G
7
g
1
θ
θ
2
1
θ0
a b
1
tan θ0
1
b
a
a
√
2
a + b2
b
√
2
a + b2
a
b
√
a2 + b2
a
√
a2 + b2
b
1
B
v0
h
h
v0
d
2
d
h
2
1
4
1
2
1
2
2
4
C
v
kv
k
1.0 m/s
1.0 × 10 kg/m
3
−2
4.0 × 10−6
kg
g = 1.0 × 101 m/s2
m3
3
1.4 × 10
3
k
3
0.10
0.20
0.30
3
0.40
kg/s
D
0.20kg
2.5m
0
g = 9.8m/s2
0.50
4
4
0.70
1.4
2.1
4
2.8
kg·m/s
E
ℓ
m
h
5
2mg
h
5
1ℓ
4
1ℓ
2
3ℓ
4
5
ℓ
F
ℓ
m
2
k
2
2
2
2
2
6
6
√
2π
√
2π
√
m
4k
2π
2m
k
2π
√
√
m
2k
2π
4m
k
6
m
k
G
1
T
1
x
t
2
2
7
f
1
t
f
7
7
A
A 10◦ C
B
2
C
3
15◦ C
2.4 × 102 g
10◦ C
15◦ C
0.7J/(g· K)
−3
1.2 × 10
4.2J/(g· K)
3
g/cm
1
8
1.7
1.4 × 103
1.2 × 106
8
1.0 × 109
cm3
B
1
S
ℓ
p0
2
d
F
2
F
9
p0 Sd
ℓ
p0 S(ℓ − d)
ℓ
p0 Sd
ℓ−d
9
p0 Sℓ
ℓ−d
p−V
C
A
B
B
B
3
B
C
C
3p0
A
A
B
C
A
A
p0
V0
V0
C
10
3p V
2 0 0
5p V
2 0 0
3p0 V0
5p0 V0
− 3 p0 V0
2
− 3 p0 V0
2
−3p0 V0
−5p0 V0
10
A
A
1
B
10cm/s
2
C
3
x
20cm
x = 0cm
1
3.5s
11
11
B
t◦ C
1
V m/s
V = 331.5 + 0.6t
0
f
2
f
λ
t
λ
t
(a) (c)
12
f
t
λ
t
(a)
(b)
(a)
(c)
(b)
(a)
(b)
(c)
(c)
(a)
(c)
(b)
12
C
A C
3
D F
A F
13
A
B
C
D
E
F
13
A(
A
1) B(
x
2) C(
3) D(
4) E(
−q(q > 0)
(x=0)
5) F(
6)
x=a
4q
0
1
x
0
0
x
14
1a
5
1a
3
2a
3
14
4a
5
B
1
1
2
ε
U1
3
U2
2
4
ε0
U1
U2
15
ε0
ε
1
(
ε0
ε
)2
(
ε
ε0
ε
ε0
)2
15
C
10V
2.0kΩ 3.0kΩ
O
3
VP
VQ
16
VP
VQ
0V
4.0V
0V
5.0V
0V
6.0V
−10V
4.0V
−10V
5.0V
−10V
6.0V
16
D
V
R
R 3R 4R
4
C
4
17
0
1 CV
5
2 CV
5
3 CV
5
4 CV
5
CV
17
E
1
d
60◦
N
2
D
5
N
45◦
D
d
18
√
2 3
3
√
√
√
6
3
√
2
6
2
18
F
B
I
y
z
(
θ 0<θ< π
2
6
x
y
x
)
ℓ
19
IBℓ
z
IBℓ
z
IBℓ sin θ
z
IBℓ sin θ
z
IBℓ cos θ
z
IBℓ cos θ
z
19