All categories

3 years ago

I WILL MARK BRAINLIEST If the number of crests that pass a point in a given time increases, what has decreased?

2 answers:

6 0

Wavelength decreases as frequency increases.
Taylor Swift was observing the amplitude of the waves as compared to the day before.

stira [4]3 years ago

5 0

Answer:

For 1: The correct answer is Wavelength.

For 2: The correct answer is Amplitude.

Explanation:

Wavelength is defined as the distance between two crests or two troughs.

Frequency is defined as the number of oscillations that occur in 1 second.

Amplitude is defined as the maximum displacement from its equilibrium position. It is the vertical distance from the crest to the equilibrium position of the wave.

Intensity of the wave is basically the energy of the wave and it is proportional to the square of the amplitude of the wave.

Speed of the wave the is defined as the distance traveled by a given point on a wave.

For 1:

As, the number of crests increases on a point which means that the number of oscillations increases and hence, the frequency increases.

Frequency is inversely proportional to the wavelength of the wave and therefore, increase in frequency will result in the decrease of wavelength.

Hence, the correct answer is Wavelength.

For 2:

When Taylor Swift stood knee deep in the ocean, she noticed that the waves were high as compared to the previous day, which means that the vertical distance of the wave has increased from its mean position.

Hence, the correct answer is Amplitude.

You might be interested in

how does increasing concentration/ temperature/ surface area affect the yield of products in a chemical reaction (not reversible

egoroff_w [7]

Answer:
Increasing concentration, temperature and surface area will increase the yield of products.

Explanation:
Concentration:
Increase in concentration of reactants will increase the number of reactants per unit volume. Therefore, the probability of collisions will increase hence, it will result in the increase in yield.

Temperature:
Increase in temperature increases the kinetic energy of reactants. Therefore, the increase in velocity of reactants results in the collisions with high energy. It makes it feasible for reactants to attain the optimum energy (activation energy) to convert into products with good yield.

Surface Area:
The reactants in grinded / powder form reacts fast as compared to solid form. In fact, grinding results in increase of the surface area of reactants. Greater surface area increases the probability of reactants to colloid. Hence, increases the yield.

6 0

3 years ago

Step 2: Now that you have counted the atoms on each side, add coefficients to balance the equation. Check your work by updating

Alja [10]

Answer:

The answers to your questions are given below.

Explanation:

__ NaBr + CaF₂ —> __ NaF + CaBr₂

The above equation can be balance as follow:

NaBr + CaF₂ —> NaF + CaBr₂

There are 2 atoms of F on the left side and 1 atom on the right side. It can be balance by writing 2 before NaF as shown below:

NaBr + CaF₂ —> 2NaF + CaBr₂

There are 2 atoms of Na on the right side and 1 atom on the left side. It can be balance by writing 2 before NaBr as shown below:

2NaBr + CaF₂ —> 2NaF + CaBr₂

Now, the equation is balanced.

Atom >>>> Reactant >>>> Product

Na >>>>>> 2 >>>>>>>>>>> 2

Br >>>>>>> 2 >>>>>>>>>>> 2

Ca >>>>>> 1 >>>>>>>>>>>> 1

F >>>>>>> 2 >>>>>>>>>>>> 2

5 0

2 years ago

What is the ph of a solution that results from mixing 25 ml of 0.15 M hcl to 25 ml of 0.52 m nh3?

BartSMP [9]

Answer:

7.00

Explanation:

When the solutions are mixed, the HCl dissociates to form the ions H+ and Cl-. The ion H+ will react with the NH3 to form NH4+. The stoichiometry for this is 1 mol of HCl to 1 mol of H+ to 1 mol of Cl-, and 1 mol of H+ to 1 mol of NH3 to 1 mol of NH4+.

First, let's find the number of moles of each one of them, multiplying the concentration by the volume:

nH+ = 0.15 M * 25 mL = 3.75 mmol

nNH3 = 0.52 M * 25 mL = 13 mmol

So, all the H+ is consumed, and the neutralization is completed, thus pH will be the pH of the solvent (water), pH = 7.00.

5 0

3 years ago

The abundance of coyotes has led to the killing of several cows

Vilka [71]

I think variation.... have a great day

8 0

3 years ago

Read 2 more answers

Identify one natural process that may cause sudden climate changes.

Vesnalui [34]

Answer:

Global Warming , Volcanic Eruption

3 0

2 years ago