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3 years ago

Can u please help me?

Physics

2 answers:

puteri [66]3 years ago

8 0

Answer:

two glass marbles bounce off of each other

in an elastic colission (or perfectly elastic) the 2 objects that collide usually bounce off of each other

kinetic energy before = kinetic energy after

Dafna1 [17]3 years ago

7 0

The answer is 2 glass marbles

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Answer:

Explanation:

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3 years ago

A flashlight is powered by 4, 1.5-volt batteries, which are connected in series. The bulb draws 720mA or 0.72 amps when turned o

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4 years ago

A pendulum with a mass of 1 kg and a spring-oscillator with the same mass of 1 kg are both oscillating with a period of 0.5 seco

maria [59]

Answer:

Explanation:

Period of the pendulum will not change as the period is not a function of mass

T = 2π√(L/g)

Period of the spring oscillator will increase with larger mass because period is a function of mass.

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3 years ago

The tuner begins by muting the right and center A4 strings. He then strikes the A4 key, and tunes the left A4 string to be exact

Anna [14]

Answer:

f= 440.4 Hz or f= 439.6 Hz

Explanation:

In this exercise we have two waves with slightly different frequencies, the A4 chord with f = 440 Hz and the beating with the central chord fbeats = 0.40 Hz, let's use the relation

f_{beat} = | f - f₀ |

f = fo + - f _{beat}

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8 0

3 years ago

A radioactive decay is illustrated. Which radioactive emission is a product of this decay?

hram777 [196]

The radioactive decay is shown in the image attached to this answer

Answer:

Alpha

Explanation:

An alpha decay is said to have occurred when the mass number of the daughter nucleus decreases by four units and the atomic number of the daughter nucleus decreases by two units.

If we look at the equation from left to right, we will notice that the mass number of the daughter nucleus decreased by four units and the atomic of the daughter nucleus number by two units compared to that of the parent nucleus leading to the emission of an alpha particle.

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3 years ago