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3 years ago

What are the benefits that you can get from playing volleyball

Physics

1 answer:

timurjin [86]3 years ago

3 0

So I played volleyball and the benefits I got was my arm strength got better and I learned how to jump higher

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A horizontal force of 150 N is used to push a 40.0-kg packing crate a distance of 6.00 m on a rough horizontal surface. If the c

icang [17]

Answer:

a. 900 J

b. 0.383

Explanation:

According to the question, the given data is as follows

Horizontal force = 150 N

Packing crate = 40.0 kg

Distance = 6.00 m

Based on the above information

a. The work done by the 150-N force is

$W = F x = \mu N x = \mu\ m\ g\ x$

$W = 150 \times 6$

= 900 J

b. Now the coefficient of kinetic friction between the crate and surface is

$\mu = \frac {F}{m\timesg}$

$= \frac{150}{40\times 9.8}$

= .383

We simply applied the above formulas so that each one part could calculate

3 0

4 years ago

Two factors that determine where an organism lives in an aquatic ecosystem

tensa zangetsu [6.8K]

Two factors that determine where an organism lives in an aquatic ecosystem are temperature and oxygen. 2. Compare the littoral zone of a lake with the benthic zone of a lake. Littoral zone is near the shore and aquatic life is diverse and abundant.

5 0

3 years ago

Quickly spinning the handle of a hand generator, Kristina is able to light three bulbs in a circuit. When she spins the generato

erastova [34]

Answer:

Voltage is too low

Explanation:

Generators produce a potential difference (voltage) by spinning a coil of wire in a magnetic field by induction.

The produced voltage is proportional to the relative speed of the coil wire with respect to the magnetic field.

Hence, for a given generator, the higher the speed the higher the potential difference.

Therefore, it is concluded immediately that when Kristina spins the generator slowly, less potential difference (voltage) is generated.

Also, you must know that the brightness of the bulbs varies with the current: the higher the current, the brigther the bulbs.

On the other hand, the basic realtion between voltage (V), resistance (R), and current I) is given by Ohm's law: V = R × I. This is, voltage and current are proportional.

Since the generator is producting less voltage, for the same bulbs (which are resistors) , the current will be lower too. And, as stated, lower current means lower brightness, which explains why when Kristina spins the generator slowly, the bulbs are very dim.

5 0

3 years ago

The amount of WORK done is determined by 2 factors.

RUDIKE [14]

Explanation :

Work is done when a force is applied to create a displacement on an object.

Thus, the work done depends on the two factors i.e.

(1) Applied force (F)

(2) Distance or displacement (d)

Mathematically, work done is $W= F.s$