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3 years ago

What is the speed of each neutron as they crash together? keep in mind that both neutrons are moving?

Physics

2 answers:

Oksanka [162]3 years ago

8 0

Answer:

The speed, as they crash together, is the same than before the crash, but with opposite directions. In this context, we recur to the collision theory in physics, which says that the amount of movement of each particle before the collision is the same than after the collision, due to the conservation of the amount of movement, which can be described like this: $\Delta p=0$ . This expression means that in a isolated environment (which is present in a neutron's collision), the total amount of movement doesn't change.

Therefore, the speed of neutrons is the same before and after the collision. Specifically the number of this speed depends on the experiment.

Sophie [7]3 years ago

7 0

This involves shooting electrons (from an accelerator) at a target or protons. This technique provided evidence for the existence of quarks. proton-antiproton scattering as well.
hope this helps

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If you were trying to describe the difference between power and work you could say...?

Paha777 [63]

Answer:

Look to the explanation

Explanation:

Work done is is the energy transferred to or from an object by means

of a force acting on the object.

Work is positive if energy transferred to the object, and work is

negative if energy transferred from the object.

Work = Force in the direction motion of object × its displacement

$W=F*s$

The SI unit of the work is joule (J)

Power is the rate of work

Power = work done ÷ time taken

Power = $\frac{F*s}{t}$

Displacement (s) ÷ time (t) = velocity (v)

Power = Force × velocity

$P=F*v$

The SI unit of the power is watt (w)

6 0

3 years ago

A projectile is launched upward at an angle of 70⁰ from the horizontal and strikes the ground a certain distance down range. For

OLga [1]

Answer:20°

Explanation:

Recall

Range R of a projectile is given by U^2sin2A/g

We're U = velocity,A= angle of projection and g is acceleration due to gravity

From the question the range R are the same

Hence R1=R2

U1^2sin2A/g=U2^2sin2B/g

But U1=U2 and g=g

Hence sin2A=sin 2B

Sin 2*70= sin2*B

0.6427=sin2B

B=sin inverse(0.6427)=40/2=20°

7 0

3 years ago

A mass of gas under constant pressure occupies a volume of 0.5 m3 at a temperature of 20°C. Using the formula for cubic expansio

Tanzania [10]

Without a change in pressure

V/T = V/T
Before change = after change - expansion

x = volume at m3

(0.5)/20 = x/45

.025 = x/45

.025 * 45 = x

1 = x

The volume of this gas is 1 m3.

Hope this helps :) also the gas expanded .5 of m3.

4 0

3 years ago

What does gravitational potential energy depend on

Alex17521 [72]

may i ask your answer soloutions... and i believe that the correct answer is mass

6 0

3 years ago

Suppose a 65.5 kg gymnast climbs a rope. What is the tension in the rope if she climbs at a constant speed

natali 33 [55]

The tension in the rope when the gymnast climbs it at constant speed is 641.9 N.

Given:

Mass of gymnast, m = 65.5 kg

The speed 'v' of gymnast is constant

Solution:

Consider the free-body diagram of the system as shown below.

Balancing forces along the vertical axis we get:

ΣFy = 0

Thus, we get:

F = ma - (1)

where, m is mass of gymnast

a is acceleration of gymnast (a = 0m/s², as the speed is constant)

Also,

F = T - mg -(2)

where, T is tension in the rope

g is acceleration due to gravity

Equating (1) & (2), we get:

ma = T - mg

Re-arranging the equation, we get:

T = m(a+g)

Applying values in above equation we get:

T = (65.5 kg)(0 m/s²+9.8 m/s²)

T = 641.9 N

Therefore, the tension in the rope when the gymnast climbs it at constant speed is 641.9 N.

Learn more about tension here:

brainly.com/question/14294135

#SPJ4

7 0

1 year ago