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GarryVolchara [31]

3 years ago

11

Is Particle B charged or uncharged? If charged, indicate whether it is charged positively or negatively. (n = neutron, p = proto

n, e = electron) Patice B 11p

1 answer:

diamong [38]3 years ago

7 0

Answer:

community College program and maddie d

Explanation:

work business work and maddie

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2.The speed-time grapher an object at rest is a(n)<br> line at y =

notsponge [240]

Answer:

0

Explanation:

When y=0, the line is on the x axis, which means that it is at a speed on 0.

8 0

3 years ago

Let σa, σb, σc, and σd be the respective surface charge densities on surfaces A, B, C, and D. Take all the charge densities to b

aniked [119]

Answer:

a) σa−σb−σc−σd=0

Explanation:

The parallel plate capacitor is the one in which two metal plates are connected in parallel with some distancing among them. The electric field from both plates is denoted by E = σ / 2ϵ0. The σ is the charge density. The Electric field in plate I will vanish when the surface charge of σa is positive and rest of the charges are negative. The correct option is a.

7 0

3 years ago

The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball?

Keith_Richards [23]

7 and a half millimeters long

6 0

3 years ago

Jack is falling down the hill at a speed of 12 m/s. If Jack has a mass of 45 kg, what is his kinetic energy?

Sindrei [870]

Explanation:

KE = ½ mv²

KE = ½ (45 kg) (12 m/s)²

KE = 3240 J

8 0

3 years ago

A fisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. It takes 3.5 s

Masteriza [31]

Answer:

v= 0.94 m/s

Explanation:

In order to calculate the speed of the waves, you use the following formula for the speed of the waves:

$v=\lambda f$ (1)

v: speed of the wave

λ: wavelength of the wave

f: frequency of the wave

The frequency is calculated by using the information about the time that boat takes to travel from its highest point to its lowest point. This time is a half of a period:

$\frac{T}{2}=3.5s\\\\T=7.0s$

Then, the frequency is:

$f=\frac{1}{T}=\frac{1}{7s}=0.142Hz$

The wavelength of the wave is the distance between crests of the wave

$\lambda=6.6m$

With the values of the frequency and the wavelength, you can find the speed of the wave by using the equation (1):

$v=(6.6m)(0.142Hz)=0.94\frac{m}{s}$

The speed of the wave is 0.94m/s

3 0

4 years ago