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cluponka [151]
3 years ago
8

Which exercise program is least effective for developing cardiovascular fitness?

Physics
2 answers:
Vanyuwa [196]3 years ago
6 0
Please lord thank you please thank you
Georgia [21]3 years ago
4 0
The answer is the last option
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the acceleration due to gravity on earth is 9.80 m/s2. if the mass of a giraffe is 1,470 kg, what is the weight of the giraffe?
Brrunno [24]
Weight  = Mass * gravity

             =  1470* 9.8 = 14406 N  ≈ 14,400 N
5 0
3 years ago
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Two negative charges are both -3.0C push each other apart with a force of 19.2N. How far apart are the two charges?
Lilit [14]

06758 m

Explanation:

it is correct because that is what

5 0
3 years ago
During a takeoff run, an aircraft starts from rest and has a lift-off speed of 120 km/h. a. What minimum constant acceleration d
svp [43]

Answer:

1.984 m/s^2

Explanation:

initial velocity of air craft, u = 0 m/s

final speed of the aircraft, v = 120 km/h

Convert the speed into m/s from km/h

So, v = 120 km/h = 33.33 m/s

distance, s = 280 m  

Let a be the acceleration of the aircraft.

Use third equation of motion

v^{2}=u^{2}+2\times a\times s

33.33^{2}=0^{2}+2\times a\times 280

a = 1.984 m/s^2

Thus, the acceleration of the aircraft is 1.984 m/s^2.

7 0
4 years ago
A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1 480 kg. It has strayed too
maks197457 [2]

Answer:

2352645198509.9604 m/s²

Explanation:

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

M = Mass of black hole = 90\times 1.989\times 10^{30}\ kg

R_{f} = 10000+100 m

R_{sb} = Distance between the nose and the center of the black hole = 10000 m

The difference in the gravitational field in this system is given by

\Delta F=\dfrac{GMm}{R_{f}^2}-\dfrac{GMm}{R_{sb}^2}\\\Rightarrow \Delta g=GM\left(\frac{1}{R_f^2}-\frac{1}{R_{sb}^2}\right)\\\Rightarrow g=6.67\times 10^{-11}\times 90\times 1.989\times 10^{30}\left(\frac{1}{(10000+100)^2}-\frac{1}{10000^2}\right)\\\Rightarrow \Delta g=-2352645198509.9604\ m/s^2

The acceleration is 2352645198509.9604 m/s²

4 0
3 years ago
What is the most abundant element in the universe?<br> A. helium<br> B. hydrogen<br> C. carbon
Naya [18.7K]
The answer is Carbon
3 0
3 years ago
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