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leonid [27]
4 years ago
12

A tennis player who is recovering from an ankle injury and is not allowed to change directions can maintain her cardio fitness l

evel by
Physics
2 answers:
Mashcka [7]4 years ago
8 0

Answer:

Explanation: A tennis player who is recovering from an ankle injury and is not allowed to change directions can

O attending a kickboxing class

O lifting weights

riding a stationary bike

taking an aerobics class

Artist 52 [7]4 years ago
7 0
A tennis player who is recovering from an ankle injury and is not allowed to change directions can maintain her cardio fitness level by using the rowing machine, the stationary bike with one leg, or swimming. These activities do not require a change in direction. These activities will not give strain to the injured part.
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What is the momentum of a volleyball with a velocity of 50 mph and a mass of .5 kg?
Romashka-Z-Leto [24]
The formula for momentum is p=mv (mass multiplied by velocity), so in this problem, p=50(.5)=25=p or in other words, momentum.
6 0
3 years ago
A particle executes simple harmonic motion with an amplitude of 3.00 cm. At what position does its speed equal half of is maximu
Mrac [35]

Answer:

x=±0.026m

Explanation:

In simple harmonic motion the maximum value of the magnitude of velocity

v_{max}=wA=\sqrt{\frac{k}{m} }A

The speed as a function of position for simple harmonic oscillator is given by

v=w\sqrt{A^{2}-x^{2}

where A is amplitude of motion

Given data

Amplitude A=3 cm =0.03 m

v=(1/2)Vmax

To find

We have asked to find position x does its speed equal half of is maximum speed

Solution

The speed of the particle the maximum speed as:

v=\frac{V_{max} }{2}\\ w\sqrt{A^{2}-x^{2}  }=\frac{wA}{2}\\  A^{2}-x^{2}=\frac{A^{2} }{4}\\ x^{2}=A^{2}- \frac{A^{2} }{4}\\ x^{2}=\frac{3A^{2}}{4} \\x=\sqrt{\frac{3A^{2}}{4}}

x=±(√3(0.03)/2)

x=±0.026m

5 0
4 years ago
What happened to change people’s views and lead them to believe in continental drift?
True [87]
The shape of the continents had been observed, that they fit together like a puzzle; this is easy to see with Africa and South America. Volcanoes and earthquakes had been found to only erupt in certain places - at the plate boundaries. Also, similar fossils had been found where the continents may have been connected. When satellite was introduced, some plate boundaries could even be seen from outer space.
5 0
3 years ago
Estefan has determined his BMI at 31. Explain how he can apply the FITT training principles to improve his body composition.
-BARSIC- [3]
Frequency:

Cardio : Five or more 
HIIT: 5 or 4

Strength: 2-3 days on non-consecutive days a week
 
Intensity:
How hard you work during the session

For cardio : workout at your target heart rate.
For HIIT: varying intensity from high to low or rest ( no slow pace)
For strength: you should lift enough weight to complete the needed number of reps and sets.

Time:

For cardio 30- 60 min
For HIIT 45 min (short periods of bursts followed by rest)

For strength depends on the amount of weight.

Type:

Either cardio, HIIT or strength training (resistance training) 

NOTE: This info is given by an unqualified brofessor, who uses his hard gained bro-science in the expense of scientific facts to solve others broblems. 



7 0
4 years ago
the imagine above shows to opposite forces acting on a rolling cart, what can we say is true about affect of the forces on the c
cluponka [151]

Answer:

Here is my answer...

Explanation:

The cart will connect with the opposite force, and then the cart will come to a shuddering stop before moving in the direction of the oposite force.

Hope I helped! :)

7 0
3 years ago
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