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klemol [59]
3 years ago
9

How are energy and temperature related?

Physics
1 answer:
d1i1m1o1n [39]3 years ago
5 0
Heat is in energy and temperature is measure of energy
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2. CaCl2 (s) + 2H20 ---&gt; Ca(OH)2 (aq) + 2HCl (g) + heat<br> Is it an endothermic reaction?
antoniya [11.8K]

Answer:

no

Explanation:

Calcium chloride is a chemical compound made up of calcium ions and chlorine ions. ... Mixing calcium chloride with water is an exothermic reaction, which means that the combination of the two substances releases heat. Thus, when you add calcium chloride to water, the solution heats.

3 0
3 years ago
15. What is the impedance of a series combination of a resistance of 1KM and a capacitance of a capacitor 2 µF at a frequency of
GrogVix [38]

Answer:

Z = 1879.64 Ω = 1.879 KΩ

Explanation:

First, we will find the capacitive reactance of the capacitor:

X_{c} = \frac{1}{2\pi fc}\\

where,

Xc = Capacitive Reactance = ?

f = frequency = 50 Hz

C = Capacitance = 2 μF = 2 x 10⁻⁶ F

Therefore,

X_{c} = \frac{1}{2\pi(50\ Hz)(2\ x\ 10^{-6} F)}\\X_{c} =  1591.55\ \Omega

This is an RC series circuit. In the RC circuit the value of impedance is given by the following formula:

Z = \sqrt{R^2 + X_{c}^2}\\Z = \sqrt{(1000\ \Omega)^2 + (1591.55\ \Omega)^2}\\

<u>Z = 1879.64 Ω = 1.879 KΩ</u>

5 0
3 years ago
When the car comes to a sudden stop, the passenger ________ in motion
Lana71 [14]

Answer:

If the car comes to a sudden stop, your body tends to keep moving forward.

Explanation:

3 0
1 year ago
Porque alguno satélites de telecomunicaciones puede permanecer en una orbita geoestacionaria
agasfer [191]
<span>Es para la comodidad del cliente. <span>Si el satélite no estaba parado
en el cielo, entonces el cliente tendría que seguir moviendo su plato
para seguir el satélite.</span></span>
4 0
3 years ago
ListenA person weighing 6.0 × 102 newtons rides an elevator upward at an average speed of 3.0 meters per second for 5.0 seconds.
pychu [463]

Answer:

(d) 9 × 10^{3] J

Explanation:

from the question we are given the following:

weight of the man = 6.0 × 10 ^ {2} N

average speed (v) = 3 m/s

time (t) = 3 s

potential energy (U) = ?

We can calculate the increase in potential energy of the man by applying the formula below

increase in potential energy = P₂ - P₁

where

  • P₁ is the initial potential energy
  • P₂ is the final potential energy
  • Potential energy = mass x acceleration due to gravity x height

From physic we know that weight = mass x acceleration due to gravity

  • We should take note that the distance in this case is also our height, and we can get it from the formula distance = velocity x time
  • Distance = 3 x 5 = 15 meters
  • Initial potential energy P₁ is zero because the person was initially in motion and potential energy is the energy at rest.

therefore

potential energy = 6.0 × 10 ^ {2} × 15 = 9 × 10^{3] J

4 0
4 years ago
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