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3 years ago

Which subatomic particle has a positive charge? options:

Physics

2 answers:

nasty-shy [4]3 years ago

7 0

Protón will be the answer , hope it helps !

GalinKa [24]3 years ago

3 0

Answer:

proton

Explanation:

pro + positive neutron =neutral and electron= negative

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What causes the phases of the Moon as seen from Earth

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4 years ago

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Explain the importance of resistors in a circuit. Cite some instances to prove this example.

Arisa [49]

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3 years ago

Without the wheels, a bicycle frame has a mass of 8.29 kg. Each of the wheels can be roughly modeled as a uniform solid disk wit

trapecia [35]

Answer:

69.66 Joule

Explanation:

mass of bicycle frame, mf = 8.29 kg

mass of wheel, mw = 0.820 kg

radius, r = 0.343 m

velocity, v = 3.6 m/s

There are two wheels in the bicycle.

There are two types of kinetic energy of the system one is kinetic energy of rotation and another is rotational kinetic energy.

$K = \frac{1}{2}m_{f}v^{2}+ 2\times \frac{1}{2}m_{w}v^{2}+ 2\times \frac{1}{2}I_{w}\omega^{2}$

$K = \frac{1}{2}m_{f}v^{2}+m_{w}v^{2}+ \frac{1}{2}\times m_{w}v^{2}$

$K = \frac{1}{2}m_{f}v^{2}+ \frac{3}{2}\times m_{w}v^{2}$

$K = \frac{1}{2}\times 8.29\times 3.6^{2}+ \frac{3}{2}\times 0.820\times 3.6^{2}$

K = 69.66 J

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4 years ago

A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill. at what speed would the car be travelin

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The speed of a car travelling over a hill that has a radius of curvature should not exceed a certain speed other it will topple. This speed is related to the radius of curvature and the gravitational acceleration as shown below:

V^2 = Rg, where V = maximum speed, R = Radius of curvature, g = gravitational acceleration.

Substituting;
V = Sqrt (Rg) = Sqrt (120*9.81) = 34.31 m/s

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3 years ago

A grinding wheel is spinning with an initial angular velocity +ω0. When its motor is turned off at t=0, it begins to slow down w

Olegator [25]

Answer:

Explanation:

Given

initial angular velocity is $\omega _0$