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3 years ago

Layla shot a balloon straight up in the air and it is in the air round trip for 6.80 s.

Physics

1 answer:

Katena32 [7]3 years ago

5 0

Answer:

24mph

Explanation:

it really depends how high but the average speed for that quick will be atleast 24mph if not try 42mph if it is wrong

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According to observer o, two events occur separated by a time interval-At=0.48 us and at locations separated by 45 m (a) Accordi

Lisa [10]

Answer:

(a) $\Delta t'=1.38\mu s$

(b) $\Delta x'=-389.46m$

Explanation:

We use Lorentz transformations, since they relate the measures of a physical magnitude obtained by two different observers, these are:

$\Delta x'=\frac{\Delta x-u\Delta t}{\sqrt{1-\frac{u^2}{c^2}}}\\\Delta t'=\frac{\Delta t-\frac{u\Delta x}{c^2}}{\sqrt{1-\frac{u^2}{c^2}}}$

Here $\Delta x$ is the spatial separation according to O, $\Delta x'$ is the spatial separation according to O', $\Delta t$ is the time interval according to O, $\Delta t'$ is the time interval according to O', $u$ is the relative speed between the two observers and $c$ is the speed of light. All we do now is write the quantities we were given, recall that $1\mu s=10^{-6}s$

(a)

$\Delta t'=\frac{0.48*10^{-6}s-\frac{0.97c(45m)}{c^2}}{\sqrt{1-\frac{(0.97c)^2}{c^2}}}\\\Delta t'=\frac{0.48*10^{-6}s-\frac{0.97(45m)}{(3*10^{8}\frac{m}{s})}}{\sqrt{1-0.97^2}}\\\Delta t'=1.38*10^-6 s=1.38\mu s$

(b)

$\Delta x'=\frac{45m-(0.97*3*10^8\frac{m}{s})0.48*10^{-6}s}{\sqrt{1-\frac{(0.97c)^2}{c^2}}}\\\Delta x'=-389.46m$

The minus sign means that the second event is closer for one observer and the first is closer for the other.

4 0

4 years ago

Where do mosquito lay eggs

MakcuM [25]

Their called rafts they lay them by surface of stagnant water

4 0

3 years ago

Read 2 more answers

If a girl running along a straight road with a uniform velocity 1.5m/s,find her acceleration

Eddi Din [679]

Her acceleration is zero, because her velocity is not changing.

6 0

3 years ago

A student writes, "A bird that is diving for prey has a speed of − 10 m /s ." What is wrong with the student's statement? What h

kompoz [17]

Answer:

Speed is a scalar quantity it has only magnitude. So in the given scenario the student actually described about the velocity.

Explanation:

In this situation, student is describing that the speed is -10 m/s. The speed with the negative sign is wrong because speed is a scalar quantity and scalar quantities have only magnitude, they do not have direction. So, his statement is wrong because he is describing the speed with the negative sign.

And also we know that velocity is a vector quantity, so it has magnitude as well as direction also. So in this situation, the student is actually want to describe the velocity because he is mentioning the magnitude in a particular direction.

4 0

3 years ago

Consider an ideal monatomic gas of N particles with mass m in thermal equilibrium at a temperature T. The gas is contained in a

harina [27]

Answer:

$K.E.=\dfrac{3}{2}KT$

Explanation:

Given that

Number of particle =N

Equilibrium temperature= T

Side of cube = L

Gravitational acceleration =g

The kinetic energy of an atom given as

$K.E.=\dfrac{3}{2}KT$

Where

Equilibrium temperature= T

Boltzmann constant =K

K =1.380649×10−23 J/K

3 0

3 years ago