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d1i1m1o1n [39]
3 years ago
5

Akbar and Lucia apply opposing forces on a

Physics
1 answer:
iragen [17]3 years ago
3 0

Answer:

20 N

Explanation:

We can solve this problem by applying Newton's second law of motion, which states that the net force applied on an object is equal to the product between the mass of the object and its acceleration:

F=ma

where

F is the net force

m is the mass

a is the acceleration

In this problem, we have:

m = 10 kg is the mass of the cart

a=2 m/s^2 is the acceleration

So the net force on the car is

F=(10)(2)=20 N

Since Lucia and Akbar are pushing into opposite directions, this means that this net force is the resultant of the two forces: and since the cart is accelerating towards Akbar, this means that Lucia is applying a force 20 N stronger than Akbar.

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During each cycle, a heat engine ejects 75 J of thermal energy for every 115 J of input thermal energy. This engine is used to l
Nastasia [14]

Answer:

no of cycle required is 1885.3

Explanation:

given data

thermal energy Q1 = 75 J

thermal energy Q2 = 115 J

load = 3454 kg

distance = 27 m

steady rate = 52.5 mm/s

to find out

How many cycles of the engine are need

solution

we find here first work done that is express as

work done W = Q2 - Q1     ..................1

put here all these value

W = 115 - 75

work done is 40 J

so energy required is

Energy required E = m×g×h     ..................2

put here value

E = 285 × 9.8 × 27

energy required = 75411 J

so here no of cycle is

no of cycle = energy required / work done

put here value

no of cycle required = 75411 / 40

so no of cycle required is 1885.3

7 0
3 years ago
How do organisms use the raw materials they ingest from the environment?
Irina18 [472]

Answer:

How do organisms use the raw materials they ingest from the environment?

All living entities require energy to sustain and maintain life. Plants and animals slightly differ in their raw material intake for survival. The raw materials required by an organism will vary depending on the complexity of the organism and its environment. All animals take in food, water and oxygen as raw material from the outside. As for plants, they take in carbon dioxide, water and sunlight to synthesize their own food in the presence of chlorophyll.

Outside raw materials used by an organism

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3 years ago
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A curent-carrying 2.0-cm long segment of wire is inside a long solenoid adius - 40 cm - 800 turns/m, current - 50 mA). The wire
klasskru [66]

Answer:

The value is  F_{max}  = 12 \muN

Explanation:

From the question we are told that

   The  length is  l = 2.0 \  cm  =  0.02 \  m

     The radius of the the solenoid is r =40 \ cm

     The number of turns per meter is  N  =  800 \  turns / m

     The current through the solenoid  is  I  =  50 \  mA  =  50*10^{-3} \  A

      The  current through the segment is  I_s  =  12 \  A

   Generally the magnetic force is mathematically  represented as

    F  = B  *  I_s l sin(\theta)

At maximum \theta =  90^o

So  

   F_{max}  = B  *  I_s l

Here B is the magnetic field is mathematically represented as  

      B  =  \mu_o  * N  * I

Here  \mu_o is the permeability of free space with value

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So  

      B  =    4\pi * 10^{-7}  * 800  *50*10^{-3}

=>    B  =   5.0272 *10^{-5}   \  T

So

     F_{max}  =  5.0272 *10^{-5}  * 12 *  0.02

    F_{max}  = 1.2 *10^{-5}

      F_{max}  = 12 \muN

 

4 0
3 years ago
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sergejj [24]

Answer:

400 N

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250 x (25 - 9) = f x 10

25 x 16 = f

f = 400 N

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