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soldi70 [24.7K]
2 years ago
13

The 2 substances in the containers below were heated to 50 degrees Celsius; then left to cool to room Temp of 20 degrees Celsius

. Which will reach room temperature first?
Physics
1 answer:
melisa1 [442]2 years ago
8 0

Answer' RA

Explanation: I need points mb gang

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A cyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes f
serg [7]

Answer:

19080667.0818 m/s

0.637294 m

2.1875\times 10^{15}

Explanation:

m = Mass of deuterons = 3.34\times 10^{-27}\ kg

v = Velocity

K = Kinetic energy = 3.8 MeV

d = Diameter

B = Magnetic field = 1.25 T

q = Charge of electron = 1.6\times 10^{-19}\ C

t = Time = 1 s

i = Current = 350 μA

Kinetic energy is given by

K=\dfrac{1}{2}mv^2\\\Rightarrow v=\sqrt{\dfrac{2K}{m}}\\\Rightarrow v=\sqrt{\dfrac{2\times 3.8\times 10^6\times 1.6\times 10^{-19}}{3.34\times 10^{-27}}}\\\Rightarrow v=19080667.0818\ m/s

The speed of the deuterons when they exit is 19080667.0818 m/s

In this system the centripetal and magnetic force will balance each other

\dfrac{mv^2}{r}=qvB\\\Rightarrow \dfrac{mv^2}{\dfrac{d}{2}}=qvB\\\Rightarrow d=\dfrac{2mv}{qB}\\\Rightarrow d=\dfrac{2\times 3.34\times 10^{-27}\times 19080667.0818}{1.6\times 10^{-19}\times 1.25}\\\Rightarrow d=0.637294\ m

The diameter is 0.637294 m

Current is given by

i=\dfrac{nq}{t}\\\Rightarrow n=\dfrac{it}{q}\\\Rightarrow n=\dfrac{350\times 10^{-6}\times 1}{1.6\times 10^{-19}}\\\Rightarrow n=2.1875\times 10^{15}

The number of deuterons is 2.1875\times 10^{15}

8 0
3 years ago
Weathering weakens and breaks apart rocks. This is an example of how weathering affects the Earth’s surface.
jekas [21]
<span>The softer a rock's composition is the slower it will weather, the harder a rock's composition the faster it will weather. Weathering weakens and breaks apart rocks. This is an example of how weathering affects the Earth's surface. No-Till Farming and Contour Farming are two examples of preventing soil erosion.</span>
6 0
3 years ago
When the time of day for a certain ship at sea is 12 noon, the time of day at the prime meridian (0 longitude0 is 5 pm. what is
azamat

A).  The sun is highest in London, but will not pass the ship
for another 5 hours.

Since the sun moves from east to west, the ship must be
5 hours west of Greenwich.

Each hour of sun motion is 15° of longitude. 
The ship's longitude is (5 x 15°) = 75° West. 

The ship may be sailing down Columbia Boulevard
in Maple Shade, New Jersey.


B).  The latitude at Buffalo's City Hall is 42.887° North.

Polaris is always within about 2/3 of a degree of that angle
above the northern horizon, when viewed from City Hall.

Choice  2)  is the most appropriate.

4 0
4 years ago
If a book has a a mass of 2 kg, how much does the book weigh?
Darina [25.2K]

Answer:

A. 20 N

Explanation:

weight of book is 2×10=20N .....

5 0
3 years ago
Which one is better yoga or exercise?
coldgirl [10]

Answer:

Yoga because It brings together physical and mental disciplines to achieve a peaceful body and mind; it helps manage stress and anxiety and keeps you relaxing and exercising just builds muscles

Explanation:

have great day!

8 0
2 years ago
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