Answer:
A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically malleable (they can be hammered into thin sheets) or ductile (can be drawn into wires). A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride.
Explanation:
Wind resistance is a kind of friction we usually try to minimize. It makes our cars and planes run less efficiently. At the same time though, we need friction between our tires and the road to move, as well as friction in our brakes to stop. We wouldn't be able to walk without friction, or start a campfire by rubbing sticks together.
Answer:
physicist use it at mechanics,moves,senmatic,denamics and more
<h3><u>Answer;</u></h3>
<em>The voltage is zero</em>
<h3><u>Explanation;</u></h3>
- <em><u>Voltage is the potential difference between two points in a circuit or the electromotive force in a given circuit and is expressed in volts (V). </u></em>
- Voltage is measured by a device called voltmeter that is always connected in parallel with the current source.
- <em><u>When voltage is measured between two points on a wire in a circuit with zero or no resistance in between the two points then the voltage will be zero</u></em><em>. </em>From the ohm's Law, voltage is given the product of resistance and current and thus if the resistance is zero then the voltage will be zero.
Answer:
Explanation:
q1 = q2 = e = 1.6 x 10^-19 C
d = 2.7 x 10^-15 m
1. Work done is equal to the potential energy stored between the two charges.
The formula for the potential energy is given by
By substituting the values
U = 8.53 x 10^-14 J
So, the work done is 8.53 x 10^-14 J.
(2) d = 2 x 2.7 x 10^-15 m = 5.4 x 10^-15 m
So, the potential energy is
By substituting the values
U = 4.27 x 10^-14 J
(3) mass, m = 1 u = 1.67 x 10^-27 kg
So, the kinetic energy is equal to the potential energy.
Let v be the velocity.
v = 7.14 x 10^6 m/s