All categories

3 years ago

A fission reaction possible is that certain atoms are

1 answer:

8 0

The process of splitting a nucleus is called nuclear fission. Uranium or plutonium isotopes are normally used as the fuel in nuclear reactors because their nuclei are relatively large and easy to split. For fission to happen, the uranium-235 or plutonium-239 nucleus must first absorb a neutron.

You might be interested in

A wheel with radius 0.487 m rotates 5.75 times every second. find the period of this motion.

marin [14]

Calculate the circumference of the circular path of the wheel by the equation,
C = 2πr
where C is the circumference,
r is the radius

Substituting the known values,
C = 2(π)(0.487 m) = 3.06 m

Then, period of the motion will be determined by dividing the number of rotations done,

T = (3.06 m) / (5.75 /s) = 0.53 s

ANSWER: 0.53 s

3 0

3 years ago

Which term describes the relationship between wax and wane

andreyandreev [35.5K]

Those two words are antonyms ... two words with opposite meanings.
"Wax" means "grow".
"Wane" means "shrink".

3 0

4 years ago

Acceleration is the rate at which what happens?

belka [17]

Answer:

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

may be it helped you

6 0

3 years ago

A hockey puck sliding along frictionless ice with speed v to the right collides with a horizontal spring and compresses it by 1.

patriot [66]

Answer:

The spring's maximum compression will be 2.0 cm

Explanation:

There are two energies in this problem, kinetic energy $K= \frac{mv^{2}}{2}$ and elastic potential energy $U= \frac{kx^{2}}{2}$ (with m the mass, v the velocity, x the compression and k the spring constant. ) so the total mechanical energy at every moment is the sum of the two energies:

$E=K+U$

Here we have a situation where the total mechanical energy of the system is conserved because there are no dissipative forces (there's no friction), so:

$E_{i}=E_{f}$

$K_{i}+U_{i}=K_{f}+U_{f}$

Note that at the initial moment where the hockey puck has not compressed the spring all the energy of the system is kinetic energy, but for a momentary stop all the energy of the system is potential elastic energy, so we have:

$K_{i} = U_{f}$

$\frac{mv^{2}}{2}=\frac{kx^{2}}{2}$ (1)

Due conservation of energy the equality (1) has to be maintained, so if we let k and m constant x has to increase the same as v to maintain the equality. Therefore, if we increase velocity to 2v we have to increase compression to 2x to conserve the equality. This is 2(1.0) = 2.0 cm

7 0

3 years ago

A cart of mass 4.0 kg is being pulled with a force of 24 N. The cart accelerates at 3.0 m s-2. What is the net force on the cart

Gre4nikov [31]

Answer:

waitt in comments... .................

5 0

2 years ago