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3 years ago

NEED ANSWER NOW PLZ WILL MARK BRAINLIEST

Physics

2 answers:

PilotLPTM [1.2K]3 years ago

8 0

I'm like 89% sure that the answer is C.

Kay [80]3 years ago

8 0

it is the process by which important molecules enter the body cells and waste products are removed from cells. is why it is important because your body kills off the stuff that's not supposed to be in it and makes sure all the good cells are where they're supposed to be

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A scale contains a spring with a spring constant of 291 N/m. Placing a mass on the scale causes the spring to be compressed by 2

WINSTONCH [101]

E = 1/2*k*x^2 = 0.5*291*0.0289^2 = 0.12 J

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3 years ago

What’s the power if a student does 2240j of work for 2.8 seconds

Alex787 [66]

Answer:

800 Watts

Explanation:

Power = Work/time

Working in SI units, Power = Watts, Work = Joules, Time = seconds.

Power = 2240J/2.8s = 800 Watts.

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2 years ago

As an aid in working this problem, consult Interactive Solution 3.41. A soccer player kicks the ball toward a goal that is 20.0

alekssr [168]

Answer:

V=14.9 m/s

Explanation:

In order to solve this problem, we are going to use the formulas of parabolic motion.

The velocity X-component of the ball is given by:

$Vx=V*cos(\alpha)\\Vx=15.7*cos(31^o)=13.5m/s$

The motion on the X axis is a constant velocity motion so:

$t=\frac{d}{Vx}\\t=\frac{20.0}{13.5}=1.48s$

The whole trajectory of the ball takes 1.48 seconds

We know that:

$Vy=Voy+(a)*t\\Vy=15.7*sin(31^o)+(-9.8)*(1.48)=-6.42m/s$

Knowing the X and Y components of the velocity, we can calculate its magnitude by:

$V=\sqrt{Vx^2+Vy^2} \\V=\sqrt{(13.5)^2+(-6.42)^2}=14.9m/s$

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3 years ago

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Harlamova29_29 [7]

Run electrity through or is postive to the circuit

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3 years ago

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3 years ago

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