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Cerrena [4.2K]
3 years ago
7

I need help answering this question.

Physics
1 answer:
Sloan [31]3 years ago
6 0
The work done is the loss of kinetic energy.

Loss of kinetic energy = m*(v1^2 - v2^2)/2 = 10 kg * [ (99m/s)^2 - (1m/s)^2]/2 = 49,000 J

 
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How do I calculate equilibrant and fx and fy. I don't understand what they are asking
Natasha2012 [34]

(a) The equilibrant C for force of vector A and B is 3.43 N.

(b) The equilibrant C for fx of vector A and B is 2.1 N.

(c) The equilibrant  C, for fy of vector A and B is 2.12 N.

<h3>What is equilibrant force?</h3>

An equilibrant force is a single force that will bring other bodies into equilibrium.

<h3>From configuration 1:</h3>

Vector A: mass = 0.2 kg, θ = 20⁰

Vector B: mass = 0.15 kg, θ = 80⁰

Fx = mg cosθ

Fy = mg sinθ

where;

  • m is mass
  • g is acceleration due to gravity

<h3>Vector A</h3>

Force of A due to its weight

F(A) = mg

F(A) = 0.2 x 9.8 = 1.96 N

Fx = (0.2 x 9.8) cos(20) = 1.84 N

Fy = (0.2 x 9.8) sin(20) = 0.67 N

<h3>Resultant force</h3>

R = √(0.67² + 1.84²)

R = 1.96 N

<h3>Vector B</h3>

Force of B due to its weight

F(B) = mg

F(B) = 0.15 x 9.8

F(B) = 1.47 N

Fx = (0.15 x 9.8) cos(80) = 0.26 N

Fy = (0.15 x 9.8) sin(80) = 1.45 N

<h3>Resultant force </h3>

R = √(0.26² + 1.45²)

R= 1.47 N

<h3>Equilibrant  C of vector A and B</h3>

Equilibrant force:

Force, C = 1.96 N + 1.47 N

Force, C = 3.43 N

Equilibrant FX:

Fx, C = Fx(A) + Fx(B)

Fx, C = 1.84 N + 0.26 N = 2.1 N

Equilibrant FY:

Fy, C = Fy(A) + Fy(B)

Fy, C =0.67 N + 1.45 N = 2.12 N

Learn more about equilibrant force here: brainly.com/question/8045102

#SPJ1

3 0
2 years ago
A beaker is filled 60 cm high with this liquid. What is the total pressure at the bottom of the beaker? (1 atm =1.013 x 105 Pa)
Amiraneli [1.4K]

Answer:

Total pressure =1.01*10^5 Pa

Explanation:

given data:

atmospheric pressure = 1.013 *10^5 Pa\

height of water column = 60 cm

Total pressure will be sum of atmospheric pressure and pressure due to water column

P =  Atmospheric pressure + pressure due to water column

pressure due to water =\rho*g*h

\rho of water  = 1420 kg/m^{3}

height of water column = 60 cm =0.60 m

Total pressure =1.013*10^{5}Pa + 1420*9.81*.60

Total pressure  = 109649.6 Pa = 1.10*10^5 Pa

Total pressure =1.01*10^5 Pa

7 0
3 years ago
given a circuit powered at 12V with R1, R2, R3 respectively of 10,20,30 Ohm, determine R4 in such a way that the Wheatstone brid
dalvyx [7]

Answer:

The balanced condition for Wheat stones bridge is  

Q

P

​  

=  

S

R

​  

 

as is obvious from the given values.

No, current flows through galvanometer is zero.

Now, P and R are in series, so

Resistance,R  

1

​  

=P+R

=10+15=25Ω

Similarly, Q and S are in series, so

Resistance R  

2

​  

=R+S

=20+30=50Ω

Net resistance of the network as R  

1

​  

 and R  

2

​  

 are in parallel

i=  

R

V

​  

=  

50

6×3

​  

=0.36 A.

Explanation:

8 0
3 years ago
What does your body do with nutrients during the digestion process?
kkurt [141]

Answer:

<em>the</em><em> </em><em>correct</em><em> </em><em>answer</em><em> </em><em>is</em>

Explanation:

<em>The</em><em> </em><em>small</em><em> </em><em>intestine</em><em> </em><em>absorbs</em><em> </em><em>most</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>nutrients</em><em> </em><em>in</em><em> </em><em>your</em><em> </em><em>food</em><em>,</em><em>an</em><em>d</em><em> </em><em>you</em><em>r</em><em> </em><em>circulatory</em><em> </em><em>system</em><em> </em><em>passes</em><em> </em><em>them</em><em> </em><em>on</em><em> </em><em>to</em><em> </em><em>other</em><em> </em><em>parts</em><em> </em><em>of</em><em> </em><em>your</em><em> </em><em>body</em><em> </em><em>to</em><em> </em><em>store</em><em> </em><em>or</em><em> </em><em>use.</em><em> </em><em>Special</em><em> </em><em>cell</em><em>s</em><em> </em><em>helped</em><em> </em><em>absorbed</em><em> </em><em>nutrients</em><em> </em><em>cross</em><em> </em><em>the</em><em> </em><em> </em><em>intestinal</em><em> </em><em>lining</em><em> </em><em> </em><em>into</em><em> </em><em>your</em><em> </em><em>blood</em><em> </em><em>stream</em><em>.</em>

<em><u>hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>works</u></em><em><u> </u></em><em><u>out</u></em><em><u>!</u></em><em><u>!</u></em><em><u>!</u></em><em><u>!</u></em>

6 0
3 years ago
Which of these statements best explains why trees in a forest do not grow very close to one another?
SpyIntel [72]
Answer: trees compete for resources directly around them . 
7 0
3 years ago
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