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4 years ago

The main difference between speed and velocity involves

1 answer:

4 0

Direction. Velocity is a vector that describes both speed and direction, while speed is a scalar that describes only speed regardless of direction.

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The picture below shows four objects a paper clip, a pair of scissors, a needle and a horseshoe. assume that each object is made

Nataly_w [17]

Mass

Explanation:

They physical property that is not the same among the four objects is their masses.

Mass is the amount of matter contained in a substance.

Specific heat is the amount of energy needed to raise the temperature of 1g of a substance by 1k.
Since the materials are made of the same metal, they have the same specific heat.
They will also have the same magnetism and electrical conductivity.
These properties are intensive property and do not depend on the amount of matter present.
Mass is an extensive property that depends on the amount of matter present.

learn more:

Physical property brainly.com/question/5881840

#learnwithBrainly

6 0

4 years ago

In an oscillating series RLCcircuit, with a 6.13 Ω resistor and a 15.2 H inductor, find the time required for the maximum energy

ivanzaharov [21]

Answer:

time for maximum energy is 1.718 sec

Explanation:

Maximum energy on the capacitor is given as $=\frac{q_{max}^2}{ 2C}$

Maximum energy $= \frac{(1/6) Q_2}{2C}$

The maximum charge is given by

$q_{max} =Qe^{-Rt/2L}$

Or $\frac{q_{max}}{Q} = e^{-Rt/2L}$

Or $ln\frac{q_{max}}{Q} = \frac{-Rt}{2L}$

solving for t

$t = \frac{2L}{R}\frac{1}{2} ln( 2)$

Putting all value to get desired value

$t = ln(2)\times \frac{L}{R}$

$t = 0.693\times \frac{(15.2}{6.13} = 1.71 sec$

8 0

3 years ago

A large semi-truck is moving a house from one lot to another. The amount of force required to move the house 15.A horizontally a

dlinn [17]

Answer:

252J

Explanation:

Given parameters:

Distance = 72m

Force = 3.5N

Unknown:

Work done on the house = ?

Solution:

Work done is the force applied to move a body through a particular distance.

Work done = Force x distance

Now insert the parameters and solve;

Work done = 3.5 x 72 = 252J

5 0

3 years ago

Describe at least two ways that electromagnet force and weak nuclear forces are alike and two ways that they are different.

ruslelena [56]

Different: The weak nuclear force is responsible for radioactive decay within an atom of a substance, while the electromagnetic force causes electrostatic force between charged particles.

Different: The weak force has a very small range of effectiveness (where the force can be felt) while the electromagnetic force has an infinite range.

Same: Both forces act within an nucleus, or on a nuclear level.

Same: The weak nuclear force is mediated by charged particles called bosons, and the electrostatic force is only present within charged objects

The last one may be a bit of a stretch but I hope this helped a bit!

4 0

4 years ago

What would be the best way for her to do this?

andrew-mc [135]

Need more info plz :)

5 0

4 years ago