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3 years ago

A circular track begins at O meters and has a total distance of 100 meters. Juliet starts at the 10-meter mark while practicing

Physics

2 answers:

Thepotemich [5.8K]3 years ago

7 0

Answer:

55 meters

Explanation:

She started at the 10 meter mark, and ran 45 meters. So her final position is:

10 m + 45 m = 55 m

She is 55 meters from the beginning of the track (the 0 meter mark).

Alja [10]3 years ago

7 0

Answer:

55 meters

Explanation:

If Juliet starts at the 10-meter mark while practicing for a race, after running 45 meters, she is 55 meters from the beginning of the track.

10 m + 45 m = 55 m

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Two teams of nine members each engage in tug-of-war. Each of the first team's members has an average mass of 68 kg and exerts an

diamong [38]

Answer:

(a) Acceleration = 0.1063 m/s^2 (Second team wins)

(b) Tension in rope = 65.106 N

Explanation:

Total mass of first team = 68 * 9 = 612 kg

Total force of first team = 1350 * 9 = 12150 N

Total mass of second team = 73 * 9 = 657 kg

Total force of seconds team = 1365 * 9 = 12285 N

Difference in force = 12285 - 12150 = 135 N (towards the second team as it has more force)

(a) For acceleration we get:

F = m * a

135 = (mass of both teams) * a

a = 135 / (612 + 657)

acceleration = 0.1063 m/s^2 (Second team wins)

(b) Since we know the acceleration of the first team (pulling being pulled towards the second team at an acceleration of 0.1063 m/s^2) , we can find out the force required to move them:

Force required for first team = mass of first team * acceleration

Force required = 612 * 0.1063

Force required = 65.106 N

This is the force exerted on the first team through the rope, so the tension in the rope will also be 65.106 N.

7 0

3 years ago

Check the correctness of P=√2mE/t where the symbols have usual meaning.

uysha [10]

Answer:

Check the correctness of the relation c=1 √μ0∈0 where the symbols have their usual meaning. check-circle.

5 0

3 years ago

A player prefers to make high passes that lift the puck above the ice. Which stick should the

Arte-miy333 [17]

Answer:

i dont know

Explanation:

hello

8 0

2 years ago

If the mass of a material is 115 grams and the volume of the material is 16 cm3, what would the density of the material be?

hjlf

Well, density is mass/volume. So what's 115 g / 16 cm3? That'll get you your density. Remember that density will be in g/cm3!

6 0

3 years ago

KI + Cl2 ---> KCl + I2<br> Balance the single replacement chemical reaction.

snow_lady [41]

Answer:

2KI + Cl₂ → 2KCl + I₂

Explanation:

The reaction equation is given as:

KI + Cl₂ → KCl + I₂

The problem at hand is to balance this chemical reaction. To solve this problem we use a mathematical approach;

aKI + bCl₂ → cKCl + dI₂

Conserving K : a = c

I : a = 2d

Cl : 2b = c

Now let a = 1, c = 1 , d = $\frac{1}{2}$ , b = $\frac{1}{2}$ , ;

Multiply through by 2;

a = 2, b = 1 , c = 2, d = 1

2KI + Cl₂ → 2KCl + I₂

5 0

2 years ago