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3 years ago

This is for my tennis Class What differences did you find between racquest ball and tennis?

Physics

1 answer:

Maru [420]3 years ago

4 0

Answer:

Tennis Rackets are Typically Bigger Than Racquetball Rackets. Tennis rackets can be up to 29 inches long, with most between 27-29 inches. Racquetball rackets cannot exceed 22 inches according to game rules. ... Having a larger racket in tennis gives you more surface area to return the ball with power and accuracy.

Explanation:

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3. A 20 kg lawnmower is pushed by its handle, which makes a 40 degree angle with the horizontal. What

Mkey [24]

<u>13788 J is required to finish the work.</u>

Explanation:

Given that,

Mass of lawnmower is 20 kg

Force = 30 N

$\text { Angle }(\theta)=40^{\circ}$

Displacement ( distance moved )= 20m

The force of 30N is applied along the direction of motion and was applied for the whole 20 m.

The formula of work done for one pass is

$\text { Work done }=\text { force } \times \text { displacement } \times \cos \theta$

Substituting the given data into the formula,

$W=30 \times 20 \times \cos 40^{\circ}$

$\mathrm{W}=600 \times \cos 40^{\circ}$

$\mathrm{W}=600 \times 0.766$

W = 459.6 J

Work done for one pass = 459.6J

Now, work done for 30 passes is calculated by multiplying the work done for one pass into 30.

$\text { Then the work done for } 30 \text { passes is } 459.61 \times 30=13788 \mathrm{J}$

Work is done by the person pushing the mower to finish the work is <u>13788 J</u>.

5 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

AlexFokin [52]

sorry I'm late but the answer is the 2nd option

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3 years ago

The type of chemical bond that involves the transfer of electrons between atoms is a(n) bond.

GaryK [48]

<h3>Answer;</h3>

<em>-Ionic bond</em>

<h3>Explanation;</h3>

<u>Ionic bond</u> is a type of bonds that results from transfers of electrons from one atom to another. This types of bond is formed between metals and non metals.
Metals lose electrons to form cations (positively charged ion) and non metals gain electrons forming anions, negatively charged ion.
For instance; between sodium and chlorine element; sodium donates a single electron to attain a stable configuration while chlorine gains an electron to achieve stable configuration, thus forming an ionic compound sodium chloride.

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