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3 years ago

13

Can anyone answer this for my friend course I am not sure of what I did I don’t take physics but I did it

1 answer:

kogti [31]3 years ago

3 0

Answer:

the total travled is 2.75

Explanation:

because if you divide 110 by 40 you get 2.75

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2. Without changing the mass or height, what else do you think you could do to design a system in which GPE and KE values are mo

Andru [333]

Answer:

jgvvjlvcgkgc

Explanation:

5 0

3 years ago

A 105 kg astronaut carrying a 16 kg tool bag finds himself separated from his spaceship by 18 m and moving away from the spacesh

Ratling [72]

Answer:

$T=22.5sec$

Explanation:

From the question we are told that:

Mass of astronaut $m_a=105kg$

Mass of tool $m_t=16kg$

Distance $d=18m$

Velocity of separation $v_s= 0.1m/s$

Velocity of tool bag $v_t=4.5m/s$

Generally the equation for momentum is mathematically given by

$P=mv$

Therefore

Initial Momentum before drop

$P_1=0.1(105+16)$

$P_1=12.1$

Initial Momentum after drop

$P_2=-16(4.5)+105V$

Therefore

Since $P_1=P_2$

$-72+105V=12.1$

$V=0.8m/s$

Generally the equation for Time T is mathematically given by

$T=\frac{d}{V}$

$T=\frac{18}{0.8}$

$T=22.5sec$

3 0

3 years ago

Which type of nuclear waste comes from the production of weapons by the military

STALIN [3.7K]

Transuranic.

I got this from yahoo

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4 years ago

Read 2 more answers

The organization of former British colonies that includes Canada, India, Pakistan, and other countries is called the __________.

Troyanec [42]

B. League of Nations failed and was not a member of A. United nations which was established after its failure. So, The organization of former British colonies that includes Canada, India, Pakistan, and other countries is called the C. Commonwealth of Nations.

3 0

3 years ago

Read 2 more answers

The wavelengths of light emitted by a firefly span the visible spectrum but have maximum intensity near 550 nm. A typical flash

Reil [10]

Answer:

$3.3\cdot 10^{15}$

Explanation:

First of all, let's calculate the energy of a single photon of wavelength

$\lambda=550 nm=5.5\cdot 10^{-7}m$

which is given by

$E_1 = \frac{hc}{\lambda}=\frac{(6.63\cdot 10^{-34}Js)(3\cdot 10^8 m/s)}{5.5\cdot 10^{-7} m}=3.6\cdot 10^{-19} J$

The power of the flash is

$P=1.2 mW=0.0012 W$

and the time it lasts is

$t=100 ms=0.1 s$

so the total energy delivered in one flash is

$E=Pt=(0.0012 W)(0.1 s)=1.2\cdot 10^{-3}J$

This energy contains exactly N photons each of energy $E_1$ , so the number of photons emitted in one flash is

$N=\frac{E}{E_1}=\frac{1.2\cdot 10^{-3} W}{3.6\cdot 10^{-19}J}=3.3\cdot 10^{15}$

3 0

3 years ago