Ask question

Ask question

All categories

Neporo4naja [7]

3 years ago

14

You have decided to study the effect of loud noise on plant growth. You put one plant in a quiet room and the other plant in you

r schools band hall. Providing each plant with the smae amount of water is a example of

1 answer:

juin [17]3 years ago

3 0

A controlled variable

You might be interested in

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. The temperature at the start of the reaction was

Minchanka [31]

Answer: The energy absorbed by the reaction from the water is 996 Joules.

Explanation:

Energy absorbed by the reaction or energy lost by the water to the reaction,Q.

Mass of the the reaction ,m = 60 g

Specific heat of water = c = 4.15 J\g ^oC

Change is temperature= $\Delta T=19^oC-23^oC=-4^oC$

$Q=mc\Delta T=60 g\times 4.15 J\g ^oC\times (-4^oC)=-996 Joules$

Negative sigh indicates that energy was given by the water to the reaction.

The energy absorbed by the reaction from the water is 996 Joules.

5 0

3 years ago

10. Inertia causes your books on the car seat to continue moving forward even after you brake. TrueFalse 11. Tires with little o

Charra [1.4K]

10. True

11. True

12. True

13. False

14. False

Hope this helps!!

3 0

3 years ago

A change in the gravitational force acting on an object will affect the object

MArishka [77]

It is weight, if I understand your question.

4 0

4 years ago

The density of silver is 10.5 g cm3. a piece of silver with a mass of 61.3 g would ovvupy a volume of ?

natali 33 [55]

The relationship between mass m, volume V and density d is:
$d= \frac{m}{V}$
The silver has density $d=10.5 g/cm^3$ , and the mass of the piece of silver is $m=61.3 g$ . Therefore we can calculate its volume using the previous formula:
$V= \frac{m}{d}= \frac{61.3 g}{10.5 g/cm^3}=5.84 cm^3$

7 0

3 years ago

Vectors have which two properties?

stiks02 [169]

Answer:

D. magnitude and direction

Explanation:

3 0

4 years ago