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4 years ago

How does gamma decay differ from both alpha decay and beta decay?

Physics

2 answers:

victus00 [196]4 years ago

3 0

Answer: No new element forms.

Gamma decay differs from alpha decay and beta decay since there is no new element forms. 

Explanation:

Among the three types of radio-active decay namely alpha decay, beta decay and gamma decay , gamma decay is the only one where a change in mass number or atomic number doesn’t occur. In gamma decay electromagnetic radiations are produced and the decaying atom doesn’t undergo changes in atomic number or mass number. Thus no new elements are formed.

In alpha decay $(-2^4)$ He nuclei is produced and the atomic number of decaying atom reduces by 2 and its mass number reduces by 4. In beta decay electrons $(-1^0)e$ or positrons $(1^0)e$ are produced and depending on whether the product is electron or positron the atomic number of the atom increases or decreases by 1 respectively.

monitta4 years ago

3 0

Answer: No new element forms.

Explanation:

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7. A car is travelling along a road at 30 ms when a pedestrian steps into the road 55 m ahead. The

trasher [3.6K]

Answer: Car collide with man

Explanation:

Given

Speed of car is $u=30\ m/s$

Distance of the man from the car is $s=55\ m$

Reaction time $t_r=0.5\ s$

Rate of deceleration $a_d=-10\ m/s^2$

Distance traveled in the reaction time $d_o=30\times 0.5=15\ m$

Net effective distance to cover $d=55-15=40\ m$

Distance required to stop the car

$\Rightarrow v^2-30^2=2(-10)(s)\\\Rightarrow 0-900=-20s\\\Rightarrow s=45\ m$

Require distance is more than that of net effective distance. Hence, car collides with the man.

6 0

3 years ago

Ender and Shen are flying at each other during a battle in space. Ender moves with a velocity v1 of 12 m/s and Shen, with a mass

Shalnov [3]

Answer:

Ender's mass = 2.25 kg

Explanation:

using law of conservation of momentum .

since there is inelastic collision

given.

$let \ \ m_{1} = m \\m_{2} = 45 kg \\v_{1} = 12 m/s \\v_{2} = 9 m/s \\\\V_{3} =6.4 m/s\\using \ \ \\m_{1}v_{1} + m_{2}v_{2} = (m_{1} +m_{2})V\\m\times12 + 45\times9 = (m+45)\times6.4\\64m -12m = 405 -288\\52m =117\\m =\frac{117}{52}\\m =2.25kg$

6 0

3 years ago

You travel in a circle, whose circumference is 8kilometers, at an average speed of kilometer/hour. If you stop at the same point

dimaraw [331]

You skipped over a number in the question, and you didn't tell me what my average speed is. Lucky for you, my average speed has NO EFFECT on the answer to the question.

When you calculate velocity, you only use the straight-line distance between the start-point and the end-point. It doesn't matter what route the thing took to get there, or how much ground it actually covered.

If I travel in a circle and stop at the same point I started from, then the size of the circle doesn't matter, and neither does my speed. The distance between my start-point and my end-point is zero, and my average velocity is zero.

3 0

4 years ago

A car traveling west in a straight line on a highway decreases its speed from 30.0 meters per second to 23.0 meters per second i

pychu [463]

Acceleration, a = (v - u) / t

Initial Velocity, u = 30 m/s
Final Velocity, v = 23 m/s
time t = 2.00 seconds

a = (23 - 30) / 2
a = -7 / 2 = -3.5 m/s2

So the acceleration is negative, which means it is a deceleration of 3.5 m/s2.

8 0

3 years ago

A student writes the following script for a scene in a futuristic movie: A rocket ship is landing on the Moon where many astrona

Sav [38]

Answer: No crash landing on the surface of the moon and there is no vibration due to low acceleration due to gravity.

Explanation:

The rocket ship can't land on the surface of the moon because it depends on winged flight for its controlled descent to the surface of the Earth. Since the moon has no real atmosphere, the wings would not be able to glide the craft smoothly to the moon's surface.

The acceleration due to gravity in the moon is very low compared to the earth. The astronauts cannot experience vibration ripple through the Moon’s surface beneath their feet because the low level acceleration due to gravity will drastically affect the weight of the ship.

6 0

3 years ago