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2 years ago

The rest deltoid row is a back exercise true or false

Physics

1 answer:

bixtya [17]2 years ago

3 0

False because your deltoids are in your shoulders not your back

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A proton moves with a speed of 1.17 105 m/s through Earth's magnetic field, which has a value of 50.0 µT at a particular locatio

vlabodo [156]

a) Southward you need to apply right hand rule. If you close your hand to the east, your thumb will indicate south.

b) Given the equation for Magnetic Force

$F= qVB$

Replacing

$F= (1.16*10^{-19})(1.17*10^5)(50*10^{-6})$

$F=9.36*10^{-19}$

c) Given the second Newton's Law by

$F_g = 1.67*10^{-27}*9.81$

$F_g = 1.64*10^{-26}$

Given the electric force by,

$F_e = 1.6*10^{-19}*1.5*10^2$

$F_e = 2.4*10^{-17}N$

$F=9.36*10^{-19}N$

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2 years ago

An object with little mass won't require a lot of force to move.

Anna35 [415]

Answer:

True

Explanation:

Heavier objects (objects with more mass) are more difficult to move and stop. Heavier objects (greater mass) resist change more than lighter objects. Example: Pushing a bicycle or a Cadillac, or stopping them once moving. The more massive the object (more inertia) the harder it is to start or stop.

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2 years ago

A mass M is hanging from a rope of length L and mass m. A student gives the mass a quick horizontal shake to set up a wave which

disa [49]

Answer:

Explanation:

Expression for velocity of wave produced in a hanging wire can be given as follows

Velocity v = $\sqrt{\frac{T}{m} }$

where T is tension in wire and m is mass of wire per unit length.

In the given case

T = Mg + mg

= Mg

neglecting weight of rope

mass of the rope per unit length

= m / L

Velocity of wave

= $\sqrt{\frac{Mg}{\frac{m}{L} } }$

= $\sqrt{\frac{MgL}{m} }$

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2 years ago

А<br> is a push or pull.

guajiro [1.7K]

Answer:

Explanation:

ignore this on...............................

7 0

3 years ago

Discuss the chemical bond exist in silicon crystal?

tamaranim1 [39]

Covalent bonds. Silicon, carbon, germanium, and a few other elements form covalently bonded solids. In these elements there are four electrons in the outer sp-shell, which is half filled. ... In the covalent bond an atom shares one valence (outer-shell) electron with each of its four nearest neighbour atoms.

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2 years ago

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