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2 years ago

What is kinematics?explain!!~thankyou ~

Physics

2 answers:

artcher [175]2 years ago

7 0

Answer:

Kinematics is the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.

-the features or properties of motion in an object.

Explanation:

Hope this helps <3

Have a great day!

Jet001 [13]2 years ago

6 0

Answer:

Kinematics is simply the study of motion. This is literally what the word means: kinesis (motion) + tics (the study of). Think mathematics, politics, pizzatics. On a more practical level, the kinematics you learn in your intro physics class is the study of position, velocity, and momentum. On the most practical level, kinematics is the study of what happens when you toss a ball.

Explanation:

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Which electromagnetic waves have the shortest wavelengths and highest frequencies?

Usimov [2.4K]

Answer: Gamma rays

Explanation: The given waves belong to the electromagnetic spectrum which consists of different electromagnetic radiations arranged in terms of increasing wavelengths or decreasing frequencies.

$E= h\times \nu$

$\nu=\frac{c}{\lambda}$

Thus $E=\frac{h\times c}{\lambda}$

E= energy

$\nu$ = frequency

c = speed of light

$\lambda$ = wavelength

Thus frequency and wavelength are inversely related. The waves having high energies ave high frequencies and have shorter wavelengths.

Thus gamma rays having highest energy have highest frequency and shortest wavelength.

3 0

3 years ago

Read 2 more answers

A diverging lens (f1 = -12.0cm) is located 50.0 cm to the left of a converging lens (f2 = 34.0 cm). A 2.0 cm-tall object stands

pishuonlain [190]

Answer:

The final image relative to the converging lens is 34 cm.

Explanation:

Given that,

Focal length of diverging lens = -12.0 cm

Focal length of converging lens = 34.0 cm

Height of object = 2.0 cm

Distance of object = 12 cm

Because object at focal point

We need to calculate the image distance of diverging lens

Using formula of lens

$\dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}$

$\dfrac{1}{v}=\dfrac{1}{-12}-\dfrac{1}{-12}$

$v=\infty$

The rays are parallel to the principle axis after passing from the diverging lens.

We need to calculate the image distance of converging lens

Now, object distance is ∞

Using formula of lens

$\dfrac{1}{v}=\dfrac{1}{34}-\dfrac{1}{\infty}$

$v=34$

The image distance is 34 cm right to the converging lens.

Hence, The final image relative to the converging lens is 34 cm.

5 0

3 years ago

Wile E. Coyote is holding a "HEAVY DUTY ACME™ ANVIL" on a cliff that is 40.0 meters high. The Roadrunner (beep-beep), who is 1.0

Mariana [72]

Answer:

53.8

Explanation: I plugged it on the formula

3 0

2 years ago

A resin tube and a PVC rod are both rubbed against styrofoam. Do

Ivan

The concepts of electrostatics allow us to find the result for the question about the electric forces in the two tubes is:

The tubes are attracted by having charges of different signs.

<h3>Electrostatics</h3>

Electrostatics studies the transfer of charge between bodies when they rub together, in generating the charges of the insulating bodies they are not mobile, so to transfer them from one body to another they must be in contact.

The force electric between charges is of two types:

Attractive. If the charges are of different signs.

Repulsive. If the charges are of the same sign.

The transferred charge depends on the bodies involved in the tables showns that the resin is positively charged when rubbed, the PVC acquires very little charge and polystyrene acquires a negative charge due to rubbing.

They indicate that the resin is rubbed with polystyrene, therefore the resin must acquire a positive charge and the polystyrene a negative charge.

Then the PVC is rubbed with the polystyrene, which initially we will assume neutral, the PVC does not acquire a charge and the polystyrenes acquires a negative charge, if the polystyrene is isolated from the ground, it shares this negative charge with the PVC, therefore the two materials remain with half of the negative charge.

Finally, we bring the resin, which is positively charged, closer to the PVC, which has a slight negative charge, therefore the two bodies must attract each other.

In conclusion using the concepts of electrostatics we can find the result for the question about the electric forces in the two tubes is:

The tubes are attracted by having charges of different signs.

Learn more about electrostatics here: brainly.com/question/17692887

6 0

2 years ago

A fire hose sends 2429 gallons of water per minute against a burning building. The water strikes the building at 66 m/s and does

Anastasy [175]

Answer:

a) Δp = - 10113.2 Kg m / s, b) he rate of change is negative, c) F = 140.46N

Explanation:

a) For this part let's analyze a water particle, it has a velocity of 66 m / s and when it collides with the building its velocity changes to zero, so the change in moment is

Δp = mv_f - m v₀

Δp = -m v₀ (1)

the change of the moment in a second is

if 2429 gallons arrive in in minute (60s) in a second how many gallons arrive

c_agua = 2429/60

c_water = 40,483 gallon/ s

let's use the concept of density to find the mass

ρ = m / V

m = ρ V

let's reduce gallons to liters

c_water = 40,483 gal (3,785 l / 1 gal) = 153.23 l

m = 1 153.23

m 153.23 kg

we substitute in 1

Δp = - 153.23 66

Δp = - 10113.2 Kg m / s

b) From the previous result the rate of change is negative

c) Let's use the impulse ratio

I = f t = Δp

F t = Δp

F = Δp / t

F = $\frac{10113.2}{1.2 \ 60}$

F = 140.46 N

5 0

3 years ago

What is kinematics?explain!!~thankyou ~​

What is kinematics?explain!!~thankyou ~