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erma4kov [3.2K]
3 years ago
5

The linear impulse and momentum equation is obtained by integrating the ______ with respect to time.

Physics
1 answer:
PSYCHO15rus [73]3 years ago
6 0

Answer:

and the forces acting on the particle as a function of time.

Explanation:

The principle of linear impulse and momentum is obtained by integrating the equation of motion with respect to time. hope this helps you :)

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The temperature coefficient of a certain conducting material is 5.74 × 10-3 (°C)-1. (a) At what temperature would the resistance
Alex777 [14]

Answer:

Temperature at which the resistance is twice the resistance at 20^{\circ}C is 194.216^{\circ}C

Solution:

As per the question:

Temperature coefficient, \alpha = 5.74\times 10^{- 3}^{\circ}C

Reference temperature, T_{o} = 20^{\circ}C

Resistance, R_{t} = 2R_{o}

Now, using the formula:

R_{t} = R_{o}(1 + \alpha \Delta T)

2R_{o} = R_{o}(1 + \alpha \times (T _ T_{o}))

2 = 1 + 5.74\times 10^{- 3}\times (T - 20^{\circ})

\frac{1}{5.74\times 10^{- 3}} = T - 20^{\circ}

T = 174.216 + 20 = 194.216^{\circ}

  • Yes, this temperature holds for all all the conductors of copper, irrespective of the size and shape of the conductor.

5 0
3 years ago
In 1869, Dmitri Mendeleev was trying to arrange the 65 known elements in a logical way. He arrived at the solution when he saw t
finlep [7]

Answer:

Creative thinking

Explanation:

As you can see in the question above, when Mandleev needed to organize the chemical elements in a logical, organized and efficient way, he thought until he came to the conclusion of organizing them according to the atomic weight of each one. This is a clear example of creative thinking, which is the term that refers to the act of solving a problem based on thought and reasoning.

3 0
3 years ago
PLEASE HURRYYY
babymother [125]

your answer is make up artist

4 0
4 years ago
Work done of frictional force from instant ​
Liono4ka [1.6K]

Answer:

  • -100\ J

Step-by-step explanation:

<u>1. Find acceleration:</u>

  • m=2\ kg
  • F=-5\ N
  • a=\frac{F}{m}  (Newton's second law)
  • a=\frac{-5}{2} =-2.5\ \frac{m}{s^{2}}

<u>2. Find distance traveled:</u>

  • v_0=10\ \frac{m}{s}
  • v=0
  • a=-2.5\ \frac{m}{s^{2} }
  • v^2-v_0^2=2ad (Kinematic equation)
  • -100=-5d
  • d=20\ m

3. Find work done by friction:

  • W=Fd (Work formula when angle between Force and Displacement vectors are 0°)
  • W=-5\times20=-100\ J
4 0
4 years ago
A wire is wrapped 200 times around a hollow cylinder of cross-sectional area 12 cm2 and length 10 cm. Assuming the turns are spr
Sonja [21]

Answer:

The answer is 10.857mJ

Explanation:

The energy stored in this solenoid is given by the below mentioned equation,

U = L*I^{2}/2

where L the inductance of this solenoid is given by the below mentioned equation,

L = u_{0} *N^{2}*A/L

Plugging this into the energy equation you obtain the equation for the total energy stored in the magnetic field of the solenoid, given by,

U = u_{0} *N^{2}*A*I^{2}/(2*L)

where u_{0} is the permeability of free space which equals to u_{0} = 4*\pi *10^{-7} T.m/A. Plugging all the quantities into the above equation from the data in the question after converting to standard units. of meters instead of centimeters, we get for the energy stored in the coil,

U = 10.857mJ

7 0
4 years ago
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