PHYSICS HIGH SCHOOL

Krishne wants to measure the mass and volume of a thimble. Which tools should she use?

Answers

Answer 1
Answer: To measure the mass, you would use a balance. To measure the volume, you can use a variety of ounces, cups, pints, quarts, and gallons. Good luck!

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What receives radio waves from space objects such as quasars?a. GPS equipment
b. Landsat satellites
c. VLBI equipment
d. navigation satellites

Answers

A VLBI system detects radio waves from space objects such as quasars.

"VLBI" stands for "Very Long Baseline Interferometry".  The idea
is that the signal is picked up by two receivers, separated by some
distance.  The tiny difference in the time the signal shows up at the
two places is used for a very precise calculation of the direction it's
coming from.

'When we see something that exists in real life, there are many different ways to display imagery and importance using art. What the artist _____________ depends on what he/she wants to communicate.'

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Answer:

Emphasizes

Explanation:

The expression of an art is intelligible to those that understand it, as such to make an impression an artist has to emphasize the point they want to communicate

An art is an expression of the personal experiences of the artist or a reaction to events or to reveal the realities as seen by the artist such as global warming and the environment, so as to get the attention of people with the goal to change them, such that a good art changes the most people, hence the need for emphasis.

Answer:

A - emphasizes

It takes 167 kJ of work to accelerate a car from 20.9 m/s to 27.9 m/s. What is the car's mass?

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Answer:

  1. space without opposite should be served

Which of the following statements are true as a block of ice melts?The temperature of the ice/water system increases.
Heat energy enters the ice/water system.
The temperature of the ice/water system remains constant.Heat energy leaves the ice/water system.
The temperature of the ice/water system decreases.

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It takes heat energy to turn ice at 0°C into water at 0°C.

-- You start off with a block of ice.

-- Some heat energy hits the ice, the ice absorbs it, a little bit
of ice melts, and a puddle forms around it.  Now you have an
ice/water system, all at 0°C.

-- If no more heat comes in from somewhere, then no more
ice can melt.

-- When some more heat energy comes in, some more ice
can melt, and become liquid at 0°C.

-- As heat comes in, more and more ice melts.  The temperature
of the whole system remains constant.  Any heat that comes in
is used to change the state of some ice from solid to liquid, with
no temperature change.

-- Finally, when all of the solid is gone, any more heat energy
begins to raise the temperature of the water.

Evaporation only occurs at the surface of a liquid

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yes

evaporation starts on the surface

A new object has been discovered in the solar system. In your own words, justify how the object can be proved to be a comet.

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Answer:

By examining its composition and parts.

Explanation:

A comet is an icy body composed of dust, rock, ice and frozen gases. Comets are commonly found in Kuiper belt and Oort cloud beyond Neptune's orbit. A comet has nucleus, a coma surrounding it and a tail. Comets also orbit the sun in large elliptical paths. Comets from Kuiper belt have smaller period unlike comets from Oort clouds.

A new object would be a comet if it has the same composition and parts.
One way is by using precise calculations in combination with accurately mapping it's position compared to other stars. If it's found to be moving a different way, then it can be proved a comet
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