Answer:
![\omega=3.135rad/s](https://tex.z-dn.net/?f=%5Comega%3D3.135rad%2Fs)
Explanation:
From the question we are told that:
initial Speed ![V_1=2.50](https://tex.z-dn.net/?f=V_1%3D2.50)
Mass ![m=70.0kg](https://tex.z-dn.net/?f=m%3D70.0kg)
Center of mass ![d=0.0.800m\](https://tex.z-dn.net/?f=d%3D0.0.800m%5C)
Generally the equation for angular velocity is is mathematically given by
![\omega=\frac{v}{r}\\\\\omega=\frac{2.50}{0.0800}](https://tex.z-dn.net/?f=%5Comega%3D%5Cfrac%7Bv%7D%7Br%7D%5C%5C%5C%5C%5Comega%3D%5Cfrac%7B2.50%7D%7B0.0800%7D)
![\omega=3.135rad/s](https://tex.z-dn.net/?f=%5Comega%3D3.135rad%2Fs)
You are looking to find gravitational energy, the formula for that is (height)(weight)(acceleration due to gravity). In your case I️t will be (3)(2)(9.8)= 58.8 Joules
Answer:
the strength of the magnetic field is 3 x 10⁻⁵ T
Explanation:
Given;
velocity of the cosmic ray, v = 5 x 10⁷ m/s
force experienced by the ray, f = 1.7 x 10⁻¹⁶ N
angle between the ray's velocity and the magnetic field, θ = 45⁰
The strength of the magnetic field is calculated as;
![F = qvB \ sin(\theta)\\\\B = \frac{F}{qv\times sin(\theta)} \\\\where;\\\\B \ is \ the \ strength \ of \ the \ magnetic \ field\\\\q \ is \ the \ charge \ of \ the \ cosmic \ ray \ proton = 1.602 \times 10^{-19} \ C\\\\B = \frac{1.7\times 10^{-16}}{(1.602 \times 10^{-19})\times (5\times 10^7) \times sin \ (45)} \\\\B = 3 \times 10^{-5} \ T](https://tex.z-dn.net/?f=F%20%3D%20qvB%20%5C%20sin%28%5Ctheta%29%5C%5C%5C%5CB%20%3D%20%5Cfrac%7BF%7D%7Bqv%5Ctimes%20sin%28%5Ctheta%29%7D%20%5C%5C%5C%5Cwhere%3B%5C%5C%5C%5CB%20%5C%20is%20%5C%20the%20%5C%20strength%20%5C%20of%20%5C%20the%20%5C%20magnetic%20%5C%20field%5C%5C%5C%5Cq%20%5C%20is%20%5C%20the%20%5C%20charge%20%5C%20of%20%5C%20the%20%5C%20cosmic%20%5C%20ray%20%5C%20proton%20%3D%201.602%20%5Ctimes%2010%5E%7B-19%7D%20%5C%20C%5C%5C%5C%5CB%20%3D%20%5Cfrac%7B1.7%5Ctimes%2010%5E%7B-16%7D%7D%7B%281.602%20%5Ctimes%2010%5E%7B-19%7D%29%5Ctimes%20%285%5Ctimes%2010%5E7%29%20%5Ctimes%20sin%20%5C%20%2845%29%7D%20%5C%5C%5C%5CB%20%3D%203%20%5Ctimes%2010%5E%7B-5%7D%20%5C%20T)
Therefore, the strength of the magnetic field is 3 x 10⁻⁵ T
<h3><u>Answer;</u></h3>
- Heat is produced
- Light is produced
- Bubbles appear
<h3><u>Explanation;</u></h3>
- Chemical reactions involve the chemical interaction of two or more chemical substances, result in a new substance being formed, and are usually irreversible.
- The signs of chemical reactions include gas formation, energy release in the form of light or flame, heat absorption, precipitate formation, and color change.
im no scientist but im pretty sure cool stars are warm colors and hot stars are cool colors, so red would be more cooler than blue.