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DIA [1.3K]
4 years ago
9

A hockey puck moving at 28 m/s is caught by an 80,00 kg man who was at

Physics
1 answer:
zimovet [89]4 years ago
8 0

Answer:

A

Explanation:

all the work is in the attached file :D

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___________ are things that a scientist keeps the same during an experiment.
Keith_Richards [23]

Answer:

independent variable

Explanation:

3 0
3 years ago
In which type of Eclipse do u see the Sun in the form of a ring
Helga [31]
The type of eclipse in which one sees the sun in the form of a ring is ANNULAR SOLAR ECLIPSE.  
Solar eclipse occurs when the moon casts a shadow on the earth.
There are three basic types of solar eclipse, these are total, partial and annular solar eclipse. The annular solar eclipse occurs when the moon covers the sun's center thereby leaving the sun visible outer edges to form a ring of fire around the moon.<span />
8 0
3 years ago
A marble on a frictionless track, starting from point A in the drawing, is projected down the curved runway. (This means that th
EleoNora [17]

Answer:

v = 4.4 m / s

Explanation:

Unfortunately, the exercise scheme does not appear. Let's analyze the problem the marble leaves point A with an initial velocity, goes down and then rises to a given height where its velocity is zero, in the whole trajectory they tell us that the resistance is zero, so we can use the conservation relations of the enegy.

Starting point. Point A

          Em₀ = K + U = ½ m v2 + mg y_a

point B.

          Em_f = U = m g y

the energy is conserved

         Em₀ = Em_f

         ½ m v² + mg y_a = m g y

        ½ m v² = m g (y -y_a)

         v = \sqrt {2g ( y - y_a)}

         In the exercise the diagram is not seen, but the height of point A must be known, suppose that y_a = 4 m

       v = \sqrt{ 2 \  9.8 ( 5 -4)}

       v = 4.4 m / s

4 0
3 years ago
finally, remind yourself the properties of light from the first lecture and qs1. if instead of pulses, the astronaut had sent a
hjlf

Although the green light flashes first, you are moving away from it, so it illuminates you at the same moment as the red light.

A green laser is frequently used by amateur astronomers because its visible beam may be used to point out stars and galaxies because it penetrates the atmosphere so far. Red lasers are less adaptable than green lasers. Each wave or component of light in a laser has been precisely aligned to form a single, strong beam.

Green DPSS lasers are the most popular and first emerged on the market about 2000. (also called diode-pumped solid-state frequency-doubled, DPSSFD). Due to the rarity of laser diodes in this wavelength region, they are more complicated than regular red laser pointers.

Green lasers have been used in head-mounted displays and laser guides for defense and security purposes. Amateur astronomers can also direct and track stars using green laser guides.

To learn more about a green light. Please visit the below link.

brainly.com/question/4503557

#SPJ4

7 0
1 year ago
A model rocket has an acceleration of 12 m/s2. A net force of 18 N is acting on the rocket. What is the mass of the rocket? its
larisa86 [58]

Answer:

C.) 1.5 kg

Explanation:

Start with the equation:

F_n_e_t=ma

Plug in what you know, and solve:

18=m(12)\\m=1.5kg

Find matching soluation:

C.) 1.5 kg

5 0
2 years ago
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