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Slav-nsk [51]
3 years ago
6

What type of substance is a catalyst?

Physics
1 answer:
MrMuchimi3 years ago
7 0
A catalyst is any substance that increases reaction rate without being consumed, so D is your answer.
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Positional and non positional different between​
Sergeeva-Olga [200]

Explanation:

In positional number system,

1. each symbol represents different value depending on the position they occupy in a number.

2. In positional number system, each system has a value that relates to the number directly next to it. The total value of a positional number is the total of the resultant value of all positions.

3. Example: 12 can be 1 x 10 + 2 x 1, 10 + 2= 12

whereas in Non-Positional number

1. In non-positional number system, each symbol represents the same value regardless of its position

2. In non-positional number system each symbol represents a number with its own place value.

3. Example: Roman number system where I for 1, II for 2 etc.

~~

6 0
3 years ago
A squeeze bottle squeezes when pressed. It regains its shape when pressed .It regains its shape when the pressure from your hand
Leokris [45]

Answer:

The squeeze will not regain its shape

Explanation:

The squeeze bottle will not regain its shape.

This is because the atmospheric pressure compresses the squeeze bottle. Since the pressure in the squeeze bottle is now not equal to the atmospheric pressure since it has been corked tightly, its internal pressure cannot balance out the atmospheric pressure and thus cancel its effect.

So, the squeeze bottle does not regain its shape due to this imbalance of pressure.

5 0
3 years ago
Calculate the force on an object that has a mass of 12 kg and an acceleration of 4 m/s^2
kati45 [8]
Remember Newton's Second Law F = mass * acceleration

mass = 12 kg
acceleration = 4 m/s^2

F = 12 * 4 = 48 N
8 0
3 years ago
When energy and matter are paired with what they are one in the same
butalik [34]

Answer:light

Explanation:

6 0
3 years ago
Um corpo de massa 50g recebe 300 calorias e sua temperatura sobe de -10°C até 20°C. Determine a capacidade térmica do corpo e o
kykrilka [37]

The specific heat capacity of the substance is 0.963 J/g^{\circ}C

Explanation:

When an object of mass m is supplied with a certain amount of energy Q, its temperature increases according to the equation:

Q=mC_s \Delta T

where

m is the mass of the object

C_s is its specific heat capacity

\Delta T is the increase in temperature of the object

In this problem, we have

Q=300 cal \cdot 4.814 = 1444.2 J

m = 50 g

\Delta T = 20C-(-10C)=30^{\circ}C

Therefore, we can solve for C_s to find its specific heat capacity:

C_s = \frac{Q}{m\Delta T}=\frac{1444.2}{(50)(30)}=0.963 J/gC

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

7 0
4 years ago
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