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kolezko [41]
3 years ago
15

___________ force can be thought of as either a push or a pull, as long as it makes the object move in a circular path.

Physics
2 answers:
gogolik [260]3 years ago
7 0

Explanation:

Centripetal force is a force required by an object to move in a circular path. Mathematically, it is given by :

F_c=\dfrac{mv^2}{r}

m is the mass of an object

v is the velocity

r is the radius of circular path

The centripetal force acts towards the center of the circle. The speed of object remains constant while its velocity keeps on changing always. In the absence of the centripetal force, the object moves in straight line.

fomenos3 years ago
5 0
I believe it would be the Centripetal force.
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Two protons are moving up when they enter a magnetic field that points towards you. What happens to the motion of the particles?
Llana [10]
The protons will possess a force pointing to the right.

The force is called Laurentz Force, which is measured by: F = qvB

Here, q is positive for proton, v and B are cross product determined by right hand rule.
6 0
4 years ago
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I know the acceleration due to gravity (ie 9.8 m/s2) will have a negative sign when falling down, a positive one when going up.
rewona [7]

Answer:

Yes

Explanation:

Accerelation is measured by change in velocity. So naturally, if an object is slowing down, its velocity is decreasing so acceleration is negative. If it is speeding up velocity is increasing so positive acceleration.

(Velocity final - Velocity initial)/t

Note that this does not apply only to gravity, but to all linear accelerations

6 0
2 years ago
PSYW - Please Show Your Work
Ad libitum [116K]

Answer:

9.66E4 J

Explanation:

7 0
3 years ago
Located adjacent to red on the electromagnetic spectrum, and having a longer wavelength, is ________ radiation, which we cannot
Kaylis [27]

Answer:

infrared radiation

Explanation:

infrared radiation - infrared radiation is part of electromagnetic radiation which wavelength range from about 700 nano meters (nm) to 1 millimeter (mm).

Infrared radiation is invisible to  naked eye,  however it can be felt as heat for longer duration infrared waves. Any type of radiation — whether it is  visible light or radio waves — may possibly be hazardous if extremely focused in a high-powered narrow beam

4 0
3 years ago
Air, considered an ideal gas, is contained in an insulated piston-cylinder assembly outfitted with a paddle wheel. It is initial
Maru [420]

Our data are,

State 1:

P_1= 10psi=68.95kPa\\V_1 = 1ft^3=0.02831m^3\\T_1 = 100\°F = 310.93K

State 2:

P_2 =5psi=34.474kPa\\V_2 = 3ft^3=0.0899m^3

We know as well that 3BTU=3.16kJ/K

To find the mass we apply the ideal gas formula, which is given by

P_1V_1=mRT_1

Re-arrange for m,

m= \frac{P_1V_1}{RT_1}\\m= \frac{68.95*0.02831}{(0.287)310.9}\\m=0.021893kg=0.04806lbm\\

Because of the pressure, temperature and volume ratio of state 1 and 2, we have to

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

Replacing,

T_2 = \frac{P_2V_2}{P_1V_1}T_1\\T_2 =\frac{34.474*0.0844}{68.95*0.02831}*310.93\\T_2 = 464.217K=375.5\°F

For conservative energy we have, (Cv = 0.718)

W = m C_v = 0.718  \Delta T +dw\\dw = W - mv\Delta T\\dw = 3.16-(0.0218*0.718)(454.127-310.93)\\dw = 0.765kJ=0.72BTU

3 0
3 years ago
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