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4 years ago

Which of the following is the largest unit? Hectogram Dekagram Decigram Microgram

Physics

1 answer:

MAXImum [283]4 years ago

8 0

Answer:

So far it seems that hectogram us the largest unit.

Dekagram is a metric unit of mass or weight, equal to 10 grams.

Hectogram is a metric unit of mass equal to 100 grams.

Decigram is a metric unit of mass and weight equal to ¹/₁₀ gram.

Microgram is a metric unit of mass equal to one millionth of a gram.

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Irene was investigating the behavior of gases at certain conditions. Which would most likely cause an increase in the rate of co

kipiarov [429]

Answer:

Increase in temperature

Increase in pressure

Explanation:

For the rate of collisions to increase, It can happen in various ways

1. The gasses can be made to move faster: This can be done by increasing their temperature. An increase in the temperature of the gases directly relates to a corresponding increase in their kinetic energy. This means that the molecules of the gases can move with a greater velocity, which will increase collision rates.

2. The volume of the container can be reduced: Consider this; If the container is made smaller, the molecules of the gases will have less space to move about. This means that they will be bumping into the walls of the container more frequently. This reduction in volume leads to an increase in the pressure of the gas. This is exactly what happens in a piston-cylinder assembly

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4 years ago

Jack and Jill are maneuvering a 3100 kg boat near a dock. Initially the boat's position is < 2, 0, 3 > m and its speed is

liraira [26]

Answer:

(a) work done by Jack is -2200J

(b) work done by Jill is 0

Explanation:

Given;

Initially boat's position = < 2, 0, 3 > m

Final boat's position = < 6, 0, 1 > m

change in position = < 4, 0, -2 >

Force exerted by Jack = < -440, 0, 220 > N

Force exerted by Jill = < 170, 0, 340 > N

Part (a) How much work does Jack do?

work done = force x distance

Jack's work = < -440, 0, 220 > N x < 4, 0, -2 > m

= [(-440*4) + (0*0) + (220*-2)]

= -1760 J - 440 J

= -2200J

Part (b) How much work does Jill do?

Jill's work = < 170, 0, 340 > N x < 4, 0, -2> m

= [(170*4) + (0*0) + (340*-2)]

= 680 J - 680 J

= 0

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4 years ago

Why is more energy required to vaporise 1kg of water than to melt 1kg of ice?

KiRa [710]

Answer:

cause it takes a lotof energy to melt

Explanation:

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3 years ago

Read 2 more answers

a particle is moving in a circle of radius R with constant speed.The time period of particle is T=1 second.In a time t=T/6,if th

12345 [234]

at t=T/6, total distance covered= 2*pi*r/6 and displacement= r

difference of them = 2*t
so, 2*pi*r/6- r =2(1/6)=1/3

r=1/(pi-3)=7.062

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3 years ago

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Explain why the mass and weight should not be used interchangeably?

Sauron [17]

Mass is a property of an object, a cloud of gas, a puddle of liquid, or a lump of goo, and doesn't necessarily change when the object moves to a different location or environment. It depends only on the object itself.

Weight is completely a product of what else is in the nearby location,so it can easily change. It's the result of the gravitational forces between two objects . . . the first one with the constant mass, and another one that also has mass. The forces between them, and therefore the weight, depend on both masses, AND on the distance between them.

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4 years ago