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3 years ago

How do I find the work done by something if I am only given force, mass, and acceleration?

Physics

1 answer:

Anna [14]3 years ago

8 0

Yeah oppp because this is yes

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Choose all that represent ways that Venus is different than Earth.

Ganezh [65]

The answer is C because carbon dioxide is trapped in a thick atmosphere.

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4 years ago

A given flow field is defined by streamwise velocity component u = (8x) ft/s and cross-stream velocity component v = (8y) ft/s,

stealth61 [152]

Lol this easy 2+2 and then just add 4 that’s 8 add 3 more that’s 16 if you add 4

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3 0

3 years ago

Un bloque de 750 kg es empujado hacia arriba por una pista inclinada 15º respecto de la horizontal. El coeficiente de rozamiento

kotegsom [21]

Answer:

4776.98 N is the minimum force to start the rise.

Explanation:

We can use the first Newton's law to find the minimum force to move the block.

So we will have:

$F-W_{x}-F_{f}=0$

Where:

F is the force
W(x) is the weight of the block in the x direction, W = mg*sin(15)
F(f) is the static friction force (F(f) = μN), μ is the static friction coefficient 0.4.

$F=W_{x}+F_{f}=mgsin(15)+\mu N$

$F=mgsin(15)+\mu mgcos(15)$

$F=mg(sin(15)+\mu cos(15))$

$F=750*9.81(sin(15)+0.4*cos(15))$

$F=4776.98 N$

Therefore 4776.98 N is the minimum force to move the block.

I hope it helps you!

8 0

3 years ago

The emission of a Beta particle has the effect of?

Zarrin [17]

Answer: No change in mass

Explanation:

Beta-emission: In this process, a neutron gets converted into a proton and an electron. The electron is referred to as a beta-particle. The beta particle released carries a charge of -1 unit and has negligible mass.

General representation of an element is given as: $_Z^A\textrm{X}$

Z= Atomic number

A = mass number

X = chemical symbol of element

$_Z^A\textrm{X}\rightarrow _{Z+1}^A\textrm{Y}+_{-1}^0\beta$

4 0

4 years ago

Leno4ka [110]

Gravitational force is an example of at-a-distance force

Option: C

<u>Explanation: </u>

Force has both direction and magnitude it is a "vector" quantity. Force is defined as pull or push of an object resulting it to interact with two objects. There are 'Contact forces' and 'At-a-distance forces'. If two interacting objects are not in a physical contact with respect to each other the force is exerted between these two objects called 'at-a-distance' forces. This type of forces consists gravitational forces. Some of the examples of the 'at-a-distance' forces are electrical and magnetic.

8 0

4 years ago