3 years ago

Match the player positions with his or her job on the court.

2 answers:

4 0

2.c
3.b
1.a
......................................................................................................................................................

dexar [7]3 years ago

4 0

Answer:

1. A

2.b

3.c

:))))))))))))))))

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A compressed spring has 16.2j of elastic potential energy when it is compressed 0.30m what is the spring constant of the spring

melisa1 [442]

The answer to the question is

<span>PE = W = 1/2 (kx^2)
16.2 = </span>1/2 (k(0.30)^2)
k = 360 J/m^2

7 0

3 years ago

A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0 degrees with t

steposvetlana [31]

Answer:

0.35

Explanation:

According to Newton's second law;

\sum Fx = ma

Fm - Ff =ma

Fm is the moving force = Wsin theta

Fm = 4(9.8)sin55

Fm = 32.1N

Ff is the frictional force = nmgcos theta

Ff = n(4)(9.8)cos55

Ff = 22.48n

Acceleration a = 6.0m/s²

Substitute the given values into the formula and get the coefficient of friction

32.11-23.48n = 4(6)

32.11-24= 23.48n

8.11 = 23.48

n = 8.11/23.48

n = 0.35

Hence the coefficient of friction is 0.35

6 0

3 years ago

All of the following are good tips for controlling your emotions EXCEPT:

TEA [102]

Answer:

Explanation:

Building up emotions can be bad for your health and hurt you mentally all other options are good.

8 0

3 years ago

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Sidana [21]

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3 years ago

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A student of weight 652 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude

miskamm [114]

Answer:

Explanation:

Given

Weight of person $W=652\ N$

At highest point Magnitude of the normal force $F=585\ N$

net force at highest point

$F_{net}=W+F_c$

where $F_c=$ centripetal force

$F_c=\dfrac{mv^2}{r}$

$F_{net}=F_{n}=$ Normal Force

$585=652+F_c$

$F_c=-67\ N$

Negative sign shows force is in upward direction

At bottom point centripetal force is towards the bottom

$F_n=F_c+W$

$F_n=652+67$

$F_n=719\ N$

8 0

4 years ago