PHYSICS HIGH SCHOOL

Which initial quantity is the same for all three cannonballs? Option 1: Mass Option 2: Volume Option 3: Density Option 4: Velocity

Answers

Answer 1
Answer:

Answer:

Velocity:  At rest they all have zero velocity.

Explanation:

Is there more information (e.g., mass, volume, etc.) for the cannonballs?

Assuming they are at rest, their velocity is the same:  0

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Consider a single slit that produces a first-order minimum at 16.5° when illuminated with monochromatic light. show answer No Attempt 50% Part (a) At what angle, in degrees, is the second-order minimum?

Answers

Answer:

\theta_2 = 34.61^0

Explanation:

Path difference for the destructive interference of a single slit:

D sin \theta = n \lambda

For the first - order minimum, n = 1, and \theta = \theta_1

D sin \theta_1 = \lambda.........(1)

For the second - order minimum, n = 2,  and \theta = \theta_2

D sin \theta_2 = 2 \lambda.........(2)

Dividing equation (2) by equation (1):

(D sin \theta_2)/(Dsin \theta_1) = (2 \lambda)/(\lambda) \n( sin \theta_2)/(sin \theta_1) = 2 \n\theta_1 = 16.5^0\n( sin \theta_2)/(sin 16.5) = 2\nsin \theta_2 = 2 sin 16.5\nsin \theta_2 = 0.568\n\theta_2 = sin^(-1) 0.568\n\theta_2 = 34.61^0

How to do this problem

Answers

Answer:

v = 12,4 m/s

Explanation:

frictionless means all gravitational Energie (Eg) will be converted to kinetic Energie (Ek)

Ek = 0.5 * m * v^2

Ez = m * g * h

Ek = Ez

0.5 * m * v^2 = m * g * h

divide left and right of the = sign by m.

(This means that the final velocity is independent of the mass of both children !)

0.5 * v^2 = g * h

v^2 = 2 * g * h

v = +- SQRT (2 * g * h)

with

g = 9.8 m/s^2

h = 7,8 m/s

v = +- SQRT (2 * 9.8 * 7.8)

v = +- SQRT (152.88)

(v = - 12,4 m/s has no meaning in this case)

The velocity 7,8 m below the starting point, will be

v = 12,4 m/s

Answer:

the answer is 336.96 mph

Explanation:

hope this helps ^_~

Like magnetic poles will repel each other, while opposite magnetic poles will attract each other true or false

Answers

The answer is True because Magnetic poles act like charges, they attract oppisites  and repel 

Potential energy is the energy

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....possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors

Answer:

\boxed{\mathrm{view \ explanation}}

Explanation:

Potential energy is the energy stored in a body due to the body’s positioning or state.

Function and location of esophagus

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Function . . . the pipe that carries food down from your mouth to your stomach.

Location . . . straight down your throat inside your neck.

An automatic response to a stimulus is called a reflex.

Answers

If you are asking if it is true or false, the correct answer is true. Reflex is an automatic response to a stimulus. Reflex is a stimulus that will allow an individual to respond to an event in which an organism will need to do in order for survival.
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