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ikadub [295]
2 years ago
10

Which of these is emitted during beta decay ?

Physics
2 answers:
satela [25.4K]2 years ago
4 0

Answer:

C. a small charged particle.

Explanation:

typically beta radiation emits an electron which is a small negativity charged particle.

hope it helps. :)

Vesna [10]2 years ago
3 0

Answer:

C) a small charged particle

Explanation:

AP3X

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As a car moves along the road, the distance traveled each second is measured and recorded. What is the
scoundrel [369]
If the car moves along the distance it will be 16 of the line graph where is independent of the graph
8 0
2 years ago
A physical quantity X is connected from X = ab2/C. Calculate percentage error in X, when percentage error in a,b,c are 4,2 and 3
Hoochie [10]

Answer: 11%

Explanation:

Given that

X = ab^2/C. Calculate percentage error in X, when percentage error in a,b,c are 4,2 and 3 respectively.

Percentage error of b = 2%

Percentage error of b^2 = 2 × 2 = 4

When you are calculating for percentage error that involves multiplication and division, you will always add up the percentage error values.

Percentage error of X will be;

Percentage error of a + percentage error of b^2 + percentage error of c

Substitute for all these values

4 + 4 + 3 = 11%

Therefore, percentage error of X is 11%

3 0
3 years ago
Four point charges are individually brought from infinity and placed at the corners of a square. Each charge has the identical v
Brut [27]

To solve this problem we will apply the concept of voltage given by Coulomb's laws. From there we will define the charges and the distance, and we will obtain the total value of the potential difference in the system.

The length of diagonal is given as

l = 2a

The distance of the center of the square from each of the corners is

r = \frac{2a}{2}= a

The potential electric at the center due to each cornet charge is

V_1 = \frac{kQ_1}{r_1}

V_2 = \frac{kQ_2}{r_2}

V_3 = \frac{kQ_3}{r_3}

V_4 = \frac{kQ_4}{r_4}

The total electric potential at the center of the given square is

V = V_1+V_2+V_3+V_4

V = \frac{kQ_1}{r_1}+ \frac{kQ_2}{r_2}+\frac{kQ_3}{r_3}+\frac{kQ_4}{r_4}

Al the charges are equal, and the distance are equal to a, then

V = \frac{kQ}{a}+ \frac{kQ}{a}+\frac{kQ}{a}+\frac{kQ}{a}

V = \frac{4kQ}{a}

Therefore the correct option is E.

3 0
3 years ago
An ac source is connected to a resistor R = 75Ω, an inductor L = 0.01 H, and a capacitor C = 4 μF. What is the phase difference
zvonat [6]

Answer:

135°.

Explanation:

R = 75 ohm, L = 0.01 H, C = 4 micro F = 4 x 10^-6 F

Frequency is equal to the half of resonant frequency.

Let f0 be the resonant frequency.

f_{0}=\frac{1}{2\pi \sqrt{LC}}

f_{0}=\frac{1}{2\times 3.14 \sqrt{0.01\times 4\times 10^{-6}}}

f0 = 796.2 Hz

f = f0 / 2 = 398.1 Hz

So, XL = 2 x 3.14 x f x L = 2 x 3.14 x 398.1 x 0.01 = 25 ohm

X_{c}=\frac{1}{2\pi fC}

Xc = 100 ohm

tan\phi = \frac{X_{L}-_{X_{C}}}{R}

tan Ф = (25 - 100) / 75 = - 1

Ф = 135°

Thus, the phase difference is 135°.

4 0
3 years ago
What is the direction of a vector with an x component of -12 m and a y component of 21 m?
Svet_ta [14]

Answer:

Direction= 119.74^\circ

Explanation:

<u>Displacement Vector</u>

The displacement, as every vector, has a magnitude r and a direction angle θ measured from the positive x-axis.

If we know the x-y components of the displacement, the magnitude and angle can be calculated by the equations:

r=\sqrt{x^2+y^2}

\displaystyle \tan\theta=\frac{y}{x}

The coordinates of the given vector are x=-12 m, y=21 m, thus:

\displaystyle \tan\theta=\frac{21}{-12}=-1.75

\theta=tan^{-1}(-1.75)=-60.26^\circ

Since the vector lies in the second quadrant, we add 180° to find the correct direction:

\boxed{Direction=-60.26^\circ+180^\circ= 119.74^\circ}

4 0
3 years ago
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