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Physics

Soren Navarro

Jack drops a tennis ball from the top of a skyscraper allowing it to fall freely. Neglecting air resistance, what is the velocity of the tennis ball at the end of 5 seconds?

A.) 9.81m/s^2

B.) 49.0m/s^2

C.) 29.4m/s^2

D.) 88.7m/s^2

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Physics

Helena Andrade

At one end of a production line, Isaac puts peaches into cans on a conveyor belt. He fills 18 cans per minute. As soon as Isaac has filled 670 cans on the conveyor belt, Albert starts putting lids on the cans at the other end of the production line. As Albert finishes closing each can, he moves up along side the conveyor belt to meet the next can. Albert puts lids on 50 cans per minute. (Assume that the conveyor belt initially had no cans on it, and that Isaac stays in place as he continues to fill cans.) How long does it take for Albert to reach Isaac (measured from when Albert starts putting on lids) ?

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Physics

Janelle Steele

Identify the triangular-shaped depositional feature indicated by letter c

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Physics

Kendra Rowe

Newton concluded that some force had to act on the moon because

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Physics

Zachery

Redacteza o compunere in care sa prezinti o modalitate placuta de petrecere a vacantei de vara

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Physics

Amira

The three forces acting on a hot-air balloon that is moving vertically are its weight, the force due to air resistance and the upthrust force. The hot-air balloon descends vertically at constant speed. The force of air resistance on the balloon is F. Which weight of material must be released from the balloon so that it ascends vertically at the same constant speed? A F B 2F C 3F D 4F

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Physics

Nico Mckay

Which are vascular plants. A. fern B. hornworts. C. liverworts D. mosses

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Physics

Oconnell

The uniform circular motion of a space station can be used to create artificial gravity. This can be done by adjusting the angular speed of the space station, so the centripetal acceleration at an astronaut's feet equals g, the magnitude of the acceleration due to the earth's gravity. If such an adjustment is made, what will be true about the acceleration at the astronaut's head due to the artificial gravity?

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Physics

Mercedes Mcneil

What are the differences and similarities to Speed and Velocity?

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Physics

Juliana Moses

Each orbit is limited to a maximum of four electrons true or false

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Physics

Maxim Ayers

What primarily involves heat transfer by convection?

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Physics

Courtney Hill

Which is the correct unit for electric power

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Physics

Bethany Carpenter

At what temperature did the substance in the test tube into a solid?

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Physics

Allison Horne

Which statement best describes air pressure at high altitudes?

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Physics

Meaghan

Is - 3x+8=y a function?

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