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3 years ago

10

Please help!!!!!!! (attached to the file)

1 answer:

frozen [14]3 years ago

6 0

Answer:

B

Explanation:

the battery isn't chemical energy so any answer saying that you can cross out and that leaves you with B

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To get an accurate data reading, scientists must be sure to

joja [24]

D.
Always use the right tool to get accurate measurements

8 0

4 years ago

According to string theory, six space-time dimensions cannot be measured except as quantum numbers of internal particle properti

m_a_m_a [10]

Answer:

$10^{-35}\ meters$

Explanation:

The string theory is a theoretical concept, the very small particles of particle physics are rep[laced by strings. This theory also applies to black hole physics, nuclear physics, cosmology etc.

According to string theory, six space-time dimensions cannot be measured except as quantum numbers of internal particle properties because they are curled up in size of the order of $10^{-35}\ m$ .

The length of the scale is assumed to be on the order of $10^{-35}\ m$ . Hence, the correct option is (a).

5 0

3 years ago

HELP ASAPPPPPPP !!!!!!!!!

Misha Larkins [42]

The answer is hydrogen

3 0

3 years ago

calcular la longitud de un péndulo que oscila a 10 Hz en santa fe de bogota, sabiendo que en esta ciudad la aceleracion de la gr

cricket20 [7]

Answer:

$L=2.48*10^{-3} m$

Explanation:

The period equation for a pendulum is given by:

$T=2\pi \sqrt{\frac{L}{g}}$

and we know that T = 1/f, where f is the frequency, so we will have:

$\frac{1}{f}=2\pi \sqrt{\frac{L}{g}}$

Now, we just need to solve this equation for L.

$\frac{1}{2\pi f}=\sqrt{\frac{L}{g}}$

$L=\frac{g}{(2\pi f)^{2}}$

g is the gravity in Bogota (g=9.78 m/s^{2})
f is 10 Hz
L is the lenght of the pendulum

$L=\frac{9.78}{(2\pi*10)^{2}}$

$L=2.48*10^{-3} m$

I hope it helps you!

5 0

3 years ago

a boat is moving across a lake during a race at a rate of 63m/s^2 and reaches a velocity of 96m/s.how long did it take the boat

Paraphin [41]

Answer:

1.52s

Explanation:

Given parameters:

Acceleration = 63m/s²

Final velocity = 96m/s

Unknown:

Time taken = ?

Solution:

To solve this problem, we use one of the kinematics equation:

v = u + at

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time taken

So;

96 = 0 + 63t

t = 1.52s

8 0

3 years ago