1 mile = 5,280 feet
5,280 feet = 63,360 inches
63,360 inches = 160,934.4 centimeters
Peak. Intensity: Vigorous (85 to 100 percent of your max heart rate) Benefit: Increases performance speed.
Cardio. Intensity: Hard (70 to 84 percent of your max hr) Benefit: Builds cardiovascular fitness and muscle strength.
Fat Burn. Intensity: Moderate (50 to 69 percent of your max hr)
Answer:
a)
16.33 Ω
b)
45009.18 A
Explanation:
a)
L = length of the line = 935 km = 935000 m
d = diameter of the line = 3.50 cm = 0.035 m
ρ = resistivity of the line = 1.68 x 10⁻⁸ Ω.m
Area of cross-section of the line is given as
A = (0.25) πd²
A = (0.25) (3.14) (0.035)²
A = 0.000961625 m²
Resistance of the line is given as
inserting the values
R = (1.68 x 10⁻⁸) (935000)/(0.000961625)
R = 16.33 Ω
b)
V = potential difference across the line = 735 kv = 735000 Volts
i = current carried by the wire
Using ohm's law, current carried by the wire is given as
i = 735000/16.33
i = 45009.18 A
Earth revolves around the sun
Answer:22 m/s
Explanation:
Given
launch angle
height of goal
and horizontal distance
Suppose initial speed is
Trajectory of a Projectile is given by
substituting the values we get
So, initial launch speed is