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3 years ago

Regular __________ disturbances that carry energy through matter or space

Physics

2 answers:

ankoles [38]3 years ago

8 0

Waves! Or to be specific, Mechanical Waves

Anna35 [415]3 years ago

3 0

Yessssssssssssssssssssssss

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What term refers to the product of an object’s mass and velocity

labwork [276]

Answer:Momentum

Explanation:

Product of an object mass and velocity is called Momentum. Basically momentum is the measure of mass in motion . More is the mass more will be the momentum and similar applies for velocity.

For example a bus moving with low velocity can have a same momentum as that of a bullet moving with a very high velocity

Momentum is denoted by Symbol P

$\vec{P}=m\vec{v}$

6 0

3 years ago

To meet a U.S. Postal Service requirement, employees' footwear must have a coefficient of static friction of 0.5 or more on a sp

Vlada [557]

Answer:

the minimum time interval is 0.77 seconds

Explanation:

given data

coefficient of static friction = 0.5

coefficient of static friction shoes= 0.825

travel s = 2.40 m

to find out

what is the minimum time interval

solution

we know newton 2nd law

force = mass × acceleration

and

force acting on person due to friction

force = coefficient of static friction shoes × mg

so we can say

coefficient of static friction shoes × mg = ma

a = coefficient of static friction shoes × g

and we know g is 9.8 m/s²

distance formula by kinematic relation

distance = ut + 0.5 × at²

here put a value and u is zero because initial speed

2.40 = 0 + 0.5 × coefficient of static friction shoes × g× t²

2.40 = 0.5 × 0.825 × 9.8 × t²

t = 0.77 s

the minimum time interval is 0.77 seconds

5 0

4 years ago

We have seen that an electric field must exist inside a conductor that carries a current. How is that possible in view of the fa

sleet_krkn [62]

Answer:

Explanation:

The potential difference between one side of the wire causes the electric field inside the wire (causes the electrons to flow). However, inside the wire, it is still neutral. The electrons are just moving, the wire is not gaining or losing electrons.

7 0

3 years ago

Select the correct statement about the flow of power as a function of time between a balanced three-phase source and a balanced

Akimi4 [234]

Answer:

Total power flow in a balanced system is constant with time

Therefore, the torque required to a balance load is constant and the vibration is lessened

Explanation:

3 0

3 years ago

elements are organized based on their properties on a chart called modern periodic table which of the following statements is tr

Illusion [34]

Answer:

Elements are arranged in the table by increasing atomic number.

Explanation:

In the modern periodic table, each element is represented by its chemical symbol. The number above each symbol is its atomic number.

8 0

4 years ago