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3 years ago

6. What is Mass????????????????

Physics

1 answer:

maria [59]3 years ago

8 0

Mass is a measure of the amount of matter in an object !!
hope this helpeddd (:

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Which is NOT a subatomic particle

Novay_Z [31]

Answer:

both proton and neutron are subatomic particle

Explanation:

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4 years ago

Which set of atoms will form an ionic compound?

Oksanka [162]

Answer:

The answer is A)

Explanation:

An ionic compound is formed when one atom donates one or more electrons to one or more atoms of another element. Calcium has two valence electrons, which are donated to an atom of oxygen. So, an ionic compound is formed in the reaction involving one calcium atom with an oxygen atom.

8 0

3 years ago

1. The arctic tern flies from the Arctic to the Antarctic and back every year, a total distance of 22,000 miles! In late summer,

NikAS [45]

Answer:

The average velocity that these birds travel is 122.22 miles per day to the south.

Explanation:

Speed is the physical quantity that expresses the variation in position of an object and as a function of time. In other words, speed is a physical quantity that expresses the relationship between the space traveled by an object, the time used for it and its direction.

Speed is expressed mathematically as the quotient between distance and time:

$v=\frac{d}{t}$

where "v" is the speed of the mobile, "d" is the distance traveled by the mobile, and "t" is the time taken by the mobile to carry out the movement.

In this case:

d= 11,000 miles
t=3 months= 90 days ( considering that in 1 month there are 30 days)

Replacing:

$velocity=\frac{11,000 miles}{90 days}$

velocity = 122.22 $\frac{miles}{day}$

<u><em>The average velocity that these birds travel is 122.22 miles per day to the south.</em></u>

8 0

3 years ago

A hydraulic press has one piston of diameter 4.0 cm and the other piston of diameter 8.0 cm. What force must be applied to the s

yan [13]

Answer:

The force is $F_1 = 400.8 \ N$

Explanation:

From the question we are told that

The first diameter is $d_1 = 4.0 \ cm = 0.04 \ m$

The second diameter is $d_2 = 8.0 \ cm = 0.08 \ m$

Generally the first area is

$A_1 = \pi * \frac{d^2_1 }{4}$

=> $A_1 = 3.142 * \frac{0.04^2}{4}$

=> $A_1 = 0.00126 \ m^2$

The second area is

$A_2 = \pi * \frac{d^2_2 }{4}$

$A_2 = 3.142 * \frac{0.08^2}{4}$

$A_2 = 0.00503 \ m^2$

For a hydraulic press the pressure at both end must be equal .

Generally pressure is mathematically represented as

$P = \frac{F}{A}$

$\frac{F_1}{A_1 } = \frac{F_2}{A_2 }$

=> $F_1 = \frac{1600}{0.00503} * 0.00126$

=> $F_1 = 400.8 \ N$

8 0

3 years ago

Two in-phase loudspeakers emit identical 1000 Hz sound waves along the x-axis. Part A What distance should one speaker be placed

Fiesta28 [93]

The distance a speaker should be placed behind other sound to have an amplitude 1.50 times is 4.523 m.

<h3>What is wavelength?</h3>

The wavelength is the distance between the adjacent crest or trough of the sinusoidal wave. The wavelength is the reciprocal of the frequency of the wave.

Wavelength λ = v/f

Two in-phase loudspeakers emit identical 1000 Hz sound waves along the x-axis.

λ = 343 m/s /1000 Hz

λ = 0.343 m

Distance, one should speaker be placed behind the other for the sound to have an amplitude 1.50 times that of each speaker alone.

The amplitude of the waveform due to waves,

A = 2a cos (ΔΦ/2)

ΔΦ = 2π x Δx/λ

So, A = 2a cos (π x Δx/λ)

Substitute the values, we get

1.5a = 2a cos (3.14 x Δx/ 0.343)

Δx = 4.523 m

Thus, the distance is 4.523 m.

Learn more about wavelength.

brainly.com/question/13533093

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7 0

2 years ago