What two simple machines make up an axe?

Physics

1 answer:

serg [7]3 years ago

7 0

It would be A since the axe head acts as a wedge and the handle is a basic lever

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Electrons are continuously being knocked out of air molecules by cosmic ray particles from space. Once the electrons are free, t

nata0808 [166]

(a) $1.25\cdot 10^{-14} J$

The change in potential energy of the electron is given by:

$\Delta U=q E d$

where

$q=1.6\cdot 10^{-19}C$ is the magnitude of the electron's charge

$E=150 N/C$ is the magnitude of the electric field

d = 520 m is the distance through which the electron has moved

Substituting into the equation, we find

$\Delta U=(1.6\cdot 10^{-19}C)(150 N/C)(520 m)=1.25\cdot 10^{-14} J$

(b) 78 kV

The potential difference the electron has moved through is given by

$\Delta V=Ed$

where

$E=150 N/C$ is the magnitude of the electric field

d = 520 m is the distance through which the electron has moved

Substituting into the equation, we find

$\Delta V=Ed=(150 N/C)(520 m)=78,000 V=78 kV$

4 0

3 years ago

Please help! Will mark best answer!!

MA_775_DIABLO [31]

The answer is (A) hope it helps

7 0

3 years ago

Read 2 more answers

A raft of mass 199 kg carries two swimmers of mass 52 kg and 70 kg. The raft is initially floating at rest. The two swimmers sim

Minchanka [31]

To solve this problem we will apply the concept related to the conservation of the Momentum. We will then start considering that the amount of initial momentum must be equal to the amount of final momentum. Considering that all the objects at the initial moment have the same initial velocity (Zero, since they start from rest) the final moment will be equivalent to the multiplication of the mass of each object by the velocity of each object, so

Initial Momentum = Final Momentum

$(m_B+m_1+m_2)v_i = m_1v_1+m_2v_2+m_Bv_B$