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Crazy boy [7]
4 years ago
7

What force is required to accelerate an object having a mass of 3 kg at 5 m/s2?

Physics
1 answer:
galina1969 [7]4 years ago
5 0
As Force = Mass × Acceleration
F = 3 kg × 5m/s² 
F = 15 kg m/s² or 15 N
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Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend much of their spare time–when they\'re not sleep
Anit [1.1K]

Answer:

mice total momentum (-0.000250, 0.00639) Kg m

Explanation:

To calculate the moment of the mice we must multiply their mass by their velocities, remember that the moment is a vector quantity, so we use the components of velocity

mouse 1

  m1 = 0.0225 Kg

  V1 = (0.869, -0.283) m / s

 

  Px = m Vx

  Px1 = 0.0225 0.869

  Px1 = 0.01955 Kg m

  Py = m Vy

  Py1 = 0.0225 (-0.283)

  Py1 = -0.006368 Kg m

  P1 = (0.0196, -0.00637) Kg m

Mouse 2

 m2 = 0.0223 Kg

 Px2 = 0.0223 (-0.883) = -0.0196 Kg m

 Py2 = 0.0223 (-0.253) = -0.00564 Kg m

 P2 = (-0.0196, -0.00564) Kg m

Mouse 3

 m3 = 0.0197

 Px3 = 0.0197 0.345 = 0.00680 Kg m

 Py3 = 0.0197 0.803 = 0.0158 Kg m

 P3 = (0.00680, 0.0158) Kg m

Mouse4

  m4 = 0.0127 Kg

  Px4 = 0.0127 (-0.555) = -0.00705 Kg m

  Py4 = 0.0127 0.205 = 0.00260 Kg m

  P4 = (-0.00705, 0.00260) Kg m

To find the total momentum we must add each component of the individual moments

   Px = Px1 + Px2 + Px3 + Px4  

   Py = py1 + Py2 + Py3 + Py4

   Px = 0.0196 -0.0196 +0.00680 -0.00705

   Px = -0,000250 Kg m

   Py = -0.00637 -0.00564 +0.0158 +0.00260

   Py = 0.00639 Kg m

   P = (-0.000250, 0.00639) Kg m

7 0
4 years ago
A fire hose held near the ground shoots water at a speed of 6.5 m/s. at what angle(s) should the nozle point in order that the w
VladimirAG [237]
 <span>The trajectory (parabola) for a "particle" of water follows from: 


h(t) = v(0) sin(angle) t - 1/2 g t^2 


x(t) = v(0) cos(angle) t 


From the second equation t = x / (v(0) cos(angle) ) 
and substitution in the first to eliminate t gives the parabola h(x): 


h(x) = x tan(angle) - (g/(2v(0)^2 cos(angle)^2) x^2 


h(x) = 0 is solved by x=0 (where the trajectory starts) and at 


x = 2 v(0)^2 tan(angle) cos^2(angle) / g 


x = 2 v(0)^2 sin(angle) cos(angle) / g 


x = v(0)^2 sin(2 angle) / g [[ using sin(2 ) = 2 sin(s) cos(s) ]] 


For the first question (the 2.0m distance question) you have therefore to solve for angle the equation 

2.0= 2*(6.5)^2 sin(2 angle) / 9.81 


sin(2 angle) = 0.23

angle = 1/2 * arcsin(0.23) = 6.65 degrees 


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
3 0
3 years ago
The famous astronomer, Kepler, determined that the planetary orbits were: 1. ellipses 2. circles 3. epicentric 4. geocentric
Yanka [14]

Answer:

geocentric

i hope this helps!!!!

Explanation:

3 0
3 years ago
Clothes dryer uses about 3:00 amps of current from a 240-volt line how much power does it use
kirill115 [55]

Electrical power is defined as

P = I * V

I = 3 amperes

V = 240 volts

Power = 3 * 240

Power = 720 Watts. Answer

4 0
3 years ago
An archer defending a castle is on a 15.5 m high wall. He shoots an arrow straight down at 22.8 m/s. How much time does it take
vazorg [7]

Answer: 1.907

Explanation:

I did the math

3 0
4 years ago
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