Answer:
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"Inner" planets are usually considered to be Mercury, Venus,
Earth, and Mars.
A). No. None of these planets has any substantial amount of hydrogen
or helium in its atmosphere.
B). No. Mercury and Venus have no moons at all, and Earth and Mars
have only three moons total between them.
C). No. Not sure what this means, but the "ground" seems like a pretty fair
land-atmosphere interface, and Venus, Earth, and Mars have a lot of that.
D). Yes. All four of them have it.
Answer:
a) 
Explanation:
Given paraeters are:
R = 25 cm
d = 4.7 mm
f = 60 Hz
= 160 V
a) 
Where 
Hz and 
V
For 
Since 
From Ampere's Law:
where 
So at ,
For maximum B, cos(2πft) = 1. Hence,
T
b) From r = 0 to r = R = 0.025 m, by Ampere's Law, the equation will be:
From r = R = 0.025 m to r = 0.1 m, by Ampere's Law, the equation will be:
The plot is given in the attachment.
Acceleration = (change in speed) / (time for the change)
change in speed = (speed at the end) - (speed at the beginning)
change in speed = (37 km/hr) - (89 km/hr) = -52 km/hr
Acceleration = (-52 km/hr) / (6 sec)
Acceleration = (-26/3) km/(hr·sec)
Units: (1/hr·sec) · (hr/3600 sec) = 1 / 3600 sec²
(-26/3) km/(hr·sec) = (-26/3) km/(3600 sec²)
= -26,000/(3 · 3600) m/s²
<em>Acceleration = -2.41 m/s²</em>
Answer:
(a) 19.25 N-m
(b) 25.67 N-m
(c) 0 N-m
Explanation:
Given:
Length of the pedal arm (L) = 0.177 m
Downward force 
= 145 N
Magnitude of torque is given by the formula:
Where, 
(a)
Given:
°
Therefore, torque is given as:
Therefore, the torque is 19.25 N-m.
(b)
Given:
°
Therefore, torque is given as:
Therefore, the torque is 25.67 N-m.
(c)
Given:
°
Therefore, torque is given as:
Therefore, the torque is 0 N-m.
