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Mademuasel [1]
3 years ago
7

The maximum heart rate during exercise for a 40 year old is

Physics
1 answer:
irina1246 [14]3 years ago
4 0
<span>Target HR Zone 50-85% would be </span>90-153 beats per minuet. The average maximum heart rate 100% is 180 beats per minuet. 
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At a particular instant, a stationary observer on the ground sees a package falling with speed v1 at an angle to the vertical. t
Lerok [7]
V1 * sin(θ) where θ is the angle v1 makes with the vertical.
7 0
4 years ago
Large wind turbines with a power capacity of 8 MW and blade span diameters of over 160 m are available for electric power genera
andriy [413]

Answer:

85413.20177 W

2050.831684248 kWh

184.5748512 dollars

Explanation:

d = Diameter of blade = 100 m

r = Radius = \dfrac{d}{2}=\dfrac{100}{2}=50\ m

\eta = Efficiency = 0.34

\rho = Density of air = 1.25 kg/m³

V = Velocity of wind = 8 m/s

A = Area = \pi r^2

The power of a wind turbine is given by

P=\dfrac{1}{2}\rho AV^3\eta\\\Rightarrow P=\dfrac{1}{2}\times 1.25\times \pi\times 50^2\times 8^3\times 0.34\\\Rightarrow P=854513.20177\ W

The power is 85413.20177 W

Energy is given by

E=Pt\\\Rightarrow E=854513.20177\times 24\\\Rightarrow E=20508316.84248\ Wh\\\Rightarrow E=2050.831684248\ kWh

The energy is 2050.831684248 kWh

The revenue is given by

0.09\times 2050.831684248=184.5748512\$

The revenue generated is 184.5748512 dollars

6 0
3 years ago
compare the numbers of each subatomic particle found in both diagrams and then list what makes hydrogen diffrent from hellium
Cloud [144]

The helium atom is found to contain more particles than the hydrogen atom.

<h3>What is a subparticle?</h3>

An atom is composed of particles and these particles are electrons protons and neutrons. The collective name for these particles is the subatomic particles.

Now we know that the helium atom contains more sub atomic particles than the atom of hydrogen. This is because, the helium atom contains two neutrons and two protons as well as two electrons. On the other hand, the hydrogen atom contains one neutron and one proton as well as one electron.

Thus, the helium atom is found to contain more particles than the hydrogen atom.

Learn more about helium atom:brainly.com/question/4945478

#SPJ1

7 0
1 year ago
PLEASE HELP HURRY!!
kenny6666 [7]

You don't need both. GPE is the gravitational potential energy caused by the fact that an object is not touching the ground of the earth. KE is caused by an object moving. This problem says that the bowling ball "sits" meaning that you only need the GPE because it's not moving and it is not touching the surface. You would use the GPE equation to find how much Potential energy an object has. If you want its velocity,  you would set the answer to the GPE equation equal to the KE equation to find its velocity.

8 0
4 years ago
Day and night are caused by
klemol [59]

Answer:

The Moon rotating around Earth and the Earth rotating around the Sun

Explanation:

3 0
3 years ago
Read 2 more answers
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