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slava [35]
4 years ago
11

Children in a tree house lift a small dog in a basket 4.00 m up to their house. If it takes 187 J of work to do this, what is th

e combined mass of the dog and basket?
Physics
1 answer:
Vika [28.1K]4 years ago
6 0
A=Fh
A - work
F - force
h - distance

F=mg
m - mass (god+basket)

so
A=mgh
187 = m*10*4
187=40m
m=187/40
m=4.675 kg
or 4kg and 675g

pretty small dog...
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At what wavelength does Io reflect the most sunlight? A. Blue
sineoko [7]

Answer:

B. Ultraviolet.

Explanation:

Io is the fourth smallest moon in the Galilean moons and it is the innermost moon out of the other three moon. It has the highest density as compare to the moon and it has lowest water at its surface.

While it is Jupiter moon it leaves a footprint of magnet over the Jupiter's upper atmosphere. The appearance of this moon look like  as a spot of ultraviolet emission that remains fixed underneath Io as Jupiter rotates. So it reflects Ultraviolet radiations.

5 0
3 years ago
7) If the mass of an object is 694 g, find the mass of rider 1 if rider 2 = 600g rider 3 = 90 (Subtract the smaller numbers from
icang [17]

The mass of the rider 1 is 4 g.

<h3>The use of a rider in mass measurement</h3>

Rider is a metallic wire piece which is of certain mass and can be bent . It can move the beam of the Paul Bunge Balance.

The riders are the sliding pointers positioned on top of the beams to show the pan and beam weight in grams.

<h3>Mass of the rider 1</h3>

The mass of the rider 1 is obtained by subtracting mass of riders as show below.

mass of rider 1 = mass of object - (mass of rider 2 + mass of rider 3)

mass of rider 1 = 694 g  - (600 g + 90 g)

mass of rider 1 = 694 g - 690 g

mass of rider 1 = 4 g

Thus, the mass of the rider 1 is 4 g.

Learn more about use of riders in mass measurement here: brainly.com/question/1747339

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8 0
2 years ago
F = ma solve for m .......
AlladinOne [14]
You should solve this like you would any algebraic expression.  Divide both sides by acceleration (a) and you will isolate the mass (m) to one side.  Now divide the force (f) by acceleration (a).

F/a=m
8 0
3 years ago
Read 2 more answers
The function of thick gloves worn by electricians is to _________.
Vilka [71]
The answer is A

Hope it helps!

4 0
3 years ago
A quantity of a gas has an absolute pressure of 400 kPa and an absolute temperature of 110 degrees kelvin. When the temperature
KiRa [710]

Answer:

A) 854.46 kPa

Explanation:

P₁ = initial pressure of the gas = 400 kPa

P₂ = final pressure of the gas = ?

T₁ = initial temperature of the gas = 110 K

T₂ = final temperature of the gas = 235 K

Using the equation

\frac{P_{1}}{T_{1}}=\frac{P_{2}}{T_{2}}

Inserting the values

\frac{400}{110}=\frac{P_{2}}{235}

P₂ = 854.46 kPa

3 0
3 years ago
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