ǁ BIO Physiological effects of large acceleration. The rocket-driven sled Sonic Wind No. 2, used for investigating the physiological effects of large accelerations, runs on a straight, level track that is 1080 m long. Starting from rest, it can reach a speed of 1610 km/h in 1.80 s. (a) Compute the acceleration in m/s 2 and in g ’s . (b) What is the distance covered in 1.80 s? (c) A magazine article states that, at the end of a certain run, the speed of the sled decreased from 1020 km/h to zero in 1.40 sand that, during this time, its passenger was subjected to more than 40 g . Are these figures consistent?
ǁ BIO Physiological effects of large acceleration. The rocket-driven sled Sonic Wind No. 2, used for investigating the physiological effects of large accelerations, runs on a straight, level track that is 1080 m long. Starting from rest, it can reach a speed of 1610 km/h in 1.80 s. (a) Compute the acceleration in m/s 2 and in g ’s . (b) What is the distance covered in 1.80 s? (c) A magazine article states that, at the end of a certain run, the speed of the sled decreased from 1020 km/h to zero in 1.40 sand that, during this time, its passenger was subjected to more than 40 g . Are these figures consistent?
ǁ BIO Physiological effects of large acceleration. The rocket-driven sled Sonic Wind No. 2, used for investigating the physiological effects of large accelerations, runs on a straight, level track that is 1080 m long. Starting from rest, it can reach a speed of 1610 km/h in 1.80 s. (a) Compute the acceleration in m/s2 and in g’s. (b) What is the distance covered in 1.80 s? (c) A magazine article states that, at the end of a certain run, the speed of the sled decreased from 1020 km/h to zero in 1.40 sand that, during this time, its passenger was subjected to more than 40g. Are these figures consistent?
In the figure below, what is the net resistance of the circuit connected to the battery? Assume that all resistances in the circuit is equal to 14.00 kΩ. Thank you.
Due to the nature of this problem, do not use rounded intermediate values-including answers submitted in WebAssign-in your calculations.
3
4
Find the currents flowing in the circuit in the figure below. (Assume the resistances are R₁ =6, R₂ = 20, R₂ = 10 N, R₁ = 8, r₁ = 0.75 0, r2=0.50, 3
× A
× A
I,
= 3.78
12
13
= 2.28
=
1.5
× A
R₁
b
a
R₁₂
w
C
1,
12
13
R₂
E3
12 V
E₁
18 V
g
Ez
3.0 V
12
Ea
شرة
R₁
e
24 V
d
= 0.25 0, and 4
=
0.5 0.)
In the circuit shown below Ɛ = 66.0 V, R5 = 4.00 £2, R3 = 2.00 N, R₂ = 2.20 N, I5 = 11.41 A, I = 10.17 A, and d I₁ = 6.88 A. Find the current through R2 and R3, and the values of the resistors R₁ and R. (Due to the nature of this
problem, do not use rounded intermediate values—including answers submitted in WebAssign-in your calculations.)
12
= 8.12
A
RA
=
-1.24
Based on the known variables, which two junctions should you consider to find the current I3? A
9.59
Which loop will give you an equation with just R₁ as the unknown? Did you follow the sign convention for the potential difference across each element in the loop?
6.49
Which loop will give you an equation with just R as the unknown? Did you follow the sign convention for the potential difference across each element in the loop? N
R₁
ww
R₂
www
R4
ww
14
15
www
R5
www
R3
Chapter 2 Solutions
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