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4 years ago

Place the types of radiation in order of INCREASING mass.

Physics

1 answer:

lubasha [3.4K]4 years ago

5 0

Answer & explanation:

Gamma Radiation (γ): Also called gamma rays. Gamma radiation is made of electromagnetic waves, has zero charge and mass, continuously emits heat and has the ability to ionize air and make it conductive of electric current.

Beta radiation (β): Beta rays or beta particles, are electrons, negative particles with charge - 1 and mass number 0.
Alpha radiation (α): Also called alpha particles or alpha rays, are particles charged by two protons and two neutrons. They have positive charge +2 and mass number 4.

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Use this formula to solve this problem: Power (P) = Work (W) ÷ time (t) Peter's body supplies a force of 500 N to run up a 5 met

sesenic [268]

As you said p=w/t.
but, w=f×s
=500×5=2500j
t=10s
p=w/t
=2500/10=250 watts

4 0

3 years ago

You walk exactly 250 steps North, turn around, and then walk exactly 400 steps South. How far are you from your starting

german

Answer:

150 steps south

Explanation:

250 north 250 back to start then continue south for remainder of 400 steps. 150 south

3 0

3 years ago

I'm completely stumped as to how to do this.

worty [1.4K]

Explanation:

You have already determined the components of the known forces so I won't repeat your work here. Since the resultant force $\vec{\textbf{R}}$ and F1 are completely along the x-axis, we can conclude that

$F_{2y} = F_{3y} \Rightarrow F_{3y} = F_3\cos{\theta} = 250\:\text{lb}$

We can now solve for the magnitude of $F_3:$

$F_3 = \sqrt{F_{3x}^2 + F_{3y}^2} = \sqrt{(467)^2 + (250)^2}$

$\:\:\:\:=529.7\:\text{lb}$

The angle $\theta$ is then

$\tan{\theta} = \dfrac{F_{3y}}{F_{3x}} = \dfrac{250}{467}$

$\theta = 49.2°$

6 0

3 years ago

I’m confused on the simplest part, which is what to multiply the 2/5 by to get it to the other side...please help

san4es73 [151]

Answer:

Mass, M = 4.859 Kg

Explanation:

Given the following data;

Radius, r = 0.225 m

Moment of inertia, I = 0.123 kgm²

To find the mass;

Mathematically, the moment of inertia is given by the formula;

I = ⅖Mr²

Making M the subject of formula, we have;

Cross-multiplying, we have;

2I = Mr²

$M = \frac {2I}{r^{2}}$

Substituting into the formula, we have;

$M = \frac {2*0.123}{0.225^{2}}$

$M = \frac {0.246}{0.050625}$

Mass, M = 4.859 Kg

7 0

3 years ago

A battery charger is connected to a dead battery and delivers a current of 3.5 a for 4 hours, keeping the voltage across the bat

oksano4ka [1.4K]

The power delivered is equal to the product between the voltage V and the current I:
$P=VI=(16 V)(3.5 A)=56 W$

This power is delivered for a total time of $t=4h=4 \cdot 3600 s = 14400 s$ , so the total energy delivered to the battery is
$E=Pt = (56 W)(14400 s)=806400 J=806.4 kJ$

5 0

3 years ago