3 years ago

Starting from rest, a coin and a ring roll down a ramp without slipping. Which of the following are true:

Physics

1 answer:

svetlana [45]3 years ago

4 0

Answer:

The answer is D

Explanation:

The object with the heavy mass will reach first because the cause it is heaver so it will go faster

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Do all planets orbit the sun in the same direction

horsena [70]

Answer:

Explanation:

All planets are different than others and bigger so that means no

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3 years ago

An atom in the ground state has a collision with an electron, then emits a photon with a wavelength of 1240 nm. What conclusion

anyanavicka [17]

Answer:

attached below is the free body diagram of the missing illustration

Initial kinetic energy of the electron = 3 eV

Explanation:

The conclusion that can be drawn about the kinetic energy of the electron is

$E_{e} = E_{3} - E_{1}$

E $_{e}$ = initial kinetic energy of the electron

E $_{1}$ = -4 eV

E $_{3}$ = -1 eV

insert the values into the equation above

$E_{e}$ = -1 -(-4) eV

= -1 + 4 = 3 eV

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3 years ago

The ozone the unearths surface from the dangerous radiation. This is an interaction between

Mnenie [13.5K]

The interaction is in the stratosphere.

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3 years ago

A severe thunderstorm dumped 2.4 in of rain in 30 min on a town of area 29 km2. What mass of water fell on the town? One cubic m

Alexus [3.1K]

Answer:

The mass of water is $1.7661\times10^{9}\ kg$

Explanation:

Given that,

Area of town = 29 km²

Time = 30 min

Height = 2.4 inch

Mass = 103 kg

We know that,

1 m = 39.37 inch

So, $2.4\ inch =\dfrac{2.4}{39.37}$

$2.4\ inch=0.0609\ m$

We need to calculate the volume

Using formula of volume

$V=H\times A$

Put the value into the formula

$V=0.0609\times29\times1000^2$

$V=1766100\ m^3$

We need to calculate the mass of water

Using formula of density

$\rho=\dfrac{m}{V}$

Put the value into the formula

$1000=\dfrac{m}{1766100}$

$m=1000\times1766100$

$m=1.7661\times10^{9}\ kg$

Hence, The mass of water is $1.7661\times10^{9}\ kg$

3 0

3 years ago

HELP!! LOOK AT THE PICTURE!!

Ilya [14]

E = mgh = 70*10*10 = 7000J

3 0

3 years ago

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