All categories

3 years ago

Which of the following actions does NO work?

Physics

2 answers:

aliya0001 [1]3 years ago

8 0

Answer:

Droping a baseball

Explanation:

becasue you are useing no sort of force to drop a baseball but you are for everything else

Mashutka [201]3 years ago

6 0

Answer:

Dropping a baseball

Explanation:

You might be interested in

Crystals are made using supersaturated solutions of solids in water.

labwork [276]

The way these supersaturated solutions are made is: A. The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility.

Solubility is simply a measure of how readily a substance is able to dissolve in a solvent to form a solution. Thus, a substance is soluble when it dissolves completely in a solvent and it is considered to be insoluble when it does not dissolve in a solvent or if it only dissolves partially.

A supersaturated solution can be defined as a solution that contains more solute than the equilibrium amount.

Generally, supersaturated solutions of solids in water are typically used for the creation of crystals because they are able to hold more of the solute than they would at room temperature.

In order to create these supersaturated solutions, the water should be heated to a higher temperature, so that the water molecules and ions can gain more kinetic energy and thereby increasing solubility.

In conclusion, heating the water to a higher temperature causes the water molecules and ions to gain more kinetic energy and thereby increasing solubility..

8 0

3 years ago

Read 2 more answers

The position of the front bumper of a test car under microprocessor control is given by x(t) = 2.31 m + (4.90 m/s2)t2 - (0.100 m

vovangra [49]

The equation of the car is given by the equation,

x(t) = 2.31 + 4.90t² - 0.10t⁶

If we are going to differentiate the equation in terms of x, we get the value for velocity.

dx/dt = 9.8t - 0.6t⁵

Calculate for the value of t when dx/dt = 0.

dx/dt = 0 = (9.8 - 0.6t⁴)(t)

The values of t from the equation is approximately equal to 0 and 2.

If we substitute these values to the equation for displacement,

(0) , x = 2.31 + 4.90(0²) - 0.1(0⁶) = 2.31

(2) , x = 2.31 + 4.90(2²) - 0.1(2⁶) = 15.51

Thus, the positions at the instants where velocity is zero are 2.31 and 15.51 meters.

3 0

3 years ago

How are magnetic forces like electric forces? (4 points) Select one: a. They both have charges b. In both, opposites attract. c.

nlexa [21]

Lets take it down a notch and break it down:

Magnetic forces and electric forces are quite similar, lets take a look at the answers possible:

A. They both have charges

False, magnetic forces do not HAVE charges, but they have an EFFECT on moving charges (that are creating a magnetic field around them).

Why? Electrical forces have positive and negative charges while magnetic forces have a north and south POLE. These two are different forces, therefore magnetic forces do not HAVE charges.

B. In both, opposites attract

We all know opposite poles attract, like poles, don't attract (repelling force). This is true for the magnetic force, now, the electric force, two positively charged particles will exert a repulsive force on one another. DING DING. We have a winner. B is TRUE.

C. In both, opposites repel

False, we already know in electric and magnetic forces that opposites attract and similar charges/poles repel.

D. Neither have charges

False, this is a joke question right? Don't even look at this one!!!!!!!!!

Therefore, B, is the only true answer that describes how magnetic and electric forces are similar.

Have a nice day!

6 0

3 years ago

HELP!!!! WITH THIS PLSSS!!!

AlekseyPX

Answer:

i cant do your whole assignment for you man

Explanation:

5 0

3 years ago

A _______ is a repeating disturbance or vibration that transfers or moves energy from place to place without transporting mass.

s344n2d4d5 [400]

Answer:the answer is wave.

Explanation:

8 0

3 years ago