Kinetic energy is the energy something possesses because of its motion when something is heated the particles begin to move more and greater distance occurs creating thermal expansion
Answer:
Correct answer is option C (Brahe and Kepler.)
Explanation:
Copernican model
Copernican model is also known as heliocentric model. According to Copernican model planets rotate around the Sun in an orbit, and earth is orbited by the Moon. Also sun is stationary and it lies at the center of the universe and stars also do not move.
Brahe supported the Copernican model but he rejected the idea that earth moves.
Kepler's also supported Copernican model and In his book "the Mysterium Cosmographicum" Kepler appreciated Copernican model. like Kepler also believed in heliocentric model not in geocentric one.
Answer:
<em>The tension in the web is 0.017738 N</em>
Explanation:
<u>Net Force</u>
The net force exerted on an object is the sum of the vectors of each individual force applied to an object.
If the net force equals 0, then the object is at rest or moving at a constant speed.
The spider described in the question is hanging at rest. It means the sum of the forces it's receiving is 0.
A hanging object has only two forces: The tension of the supporting string (in our case, the web) and its weight. If the object is in equilibrium, the tension is numerically equal to the weight:
T=W=m.g
The mass of the spider is m=1.81 gr = 0.00181 Kg, thus the tension is:
The tension in the web is 0.017738 N
Answer:
8.136×10⁻⁵ J
Explanation:
Applying,
Q = Cv................ Equation 1
Where Q = Charge on the capacitor, v = voltage of the battery, C = capacitance of the capacitor.
From the question,
Given: C = 6.78μF = 6.78×10⁻⁶ F, v = 12 V
Substitute these values into equation 1
Q = (6.78×10⁻⁶ )(12)
Q = 8.136×10⁻⁵ J
Hence the charge on the capacitor is 8.136×10⁻⁵ J
Answer:
<h3>formular kinetic energy=1/2 ×v</h3>