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Sonja [21]
3 years ago
11

During alpha decay, a radioactive atom releases an alpha particle that is equivalent to the nucleus of a helium atom. So, the ne

w atom that is formed should have _______ protons than the original atom.
A. two more
B. two fewer
C. four fewer
D. four more
Physics
2 answers:
Vlada [557]3 years ago
8 0

Answer:

B. two fewer

Explanation:

Helium has two protons so two protons are released from that nucleus.

sladkih [1.3K]3 years ago
8 0
Si the answer is Two fewer B
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11. A 6.0‐m wire with a mass of 50 g, is under tension. A transverse wave, for which the frequency is 810 Hz, the wavelength is
Irina-Kira [14]

Answer:

Time will be 19 ms so option (a) is correct option

Explanation:

We have given that mass of wire m = 50 gram = 0.5 kg

Frequency f = 810 Hz

Wavelength = 0.4 m

Velocity is given by

v=wavelength\times frequency=810\times 0.4=324m/sec

Amplitude is given as d = 6 m

So time t=\frac{distance}{velocity}=\frac{6}{324}=0.01851=19ms

So option (a) is correct option

4 0
4 years ago
Safety belts and occupant protection systems are installed to reduce the harmful effects of the force of _____ during a collisio
Phantasy [73]

To lessen the negative impacts of the force generated during a collision, safety belts and occupant protective relays are installed.

Importance of safety belts:

  • The purpose of a seat belt usually referred to as a safety belt or a safety belt, is to protect the driver or an occupant of a vehicle from a potentially dangerous movement that may occur during an accident or an abrupt stop. By minimizing the power of secondary hits with interior striking hazards, maintaining proper occupant positioning for the airbag, and preventing people from being expelled from the vehicle after an accident or if the automobile rolls over, seat belts help minimize the chance of a fatal accident in traffic collisions. When the car is moving, the passenger and the driver move together with it at the same pace.
  • The occupants continue moving at the same pace the vehicle was traveling at when it stopped if it unexpectedly stops or crashes. To stop the driver and other passengers from exiting the vehicle or contacting the interiors of the vehicle, seatbelts apply an equal and opposite force to them. Due to their crucial function in occupant safety, seatbelts are regarded as the main restraint devices.

Learn more about safety belts here:

brainly.com/question/5626690

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3 0
2 years ago
Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She pl
jenyasd209 [6]

Answer:

A. independent variable.

Explanation:

In this experiment, the types of box materials are a(n) independent variable, which is when you purposely change things or control them, hoping for a specific outcome.

4 0
3 years ago
The charged particles in the beams that Thomson studied came from atoms. As these particles moved away from their original atoms
aalyn [17]

The question to the above information is;

What is the best use of an atomic model to explain the charge of the particles in Thomson's beams?

Answer;

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.

Explanation;

-Atoms are comprised of a nucleus consisting of protons (red) and neutrons (blue). The number of orbiting electrons is the same as the number of protons and is termed the "atomic number" of the element.

J.J. Thomson discovered the electron. Atoms are neutral overall, therefore in Thomson’s ‘plum pudding model’:

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3 years ago
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Sleep walking definitely
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