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12345 [234]
2 years ago
9

Why should a chemical equation be balanced? A. to show ionic compounds B. to show metals from nonmetals C. to show the law of co

nservation of mass D. to show that the reactants are compounds
Physics
1 answer:
yKpoI14uk [10]2 years ago
3 0

Answer:

b

Explanation:

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Two bicyclist, originally separated by a distance of 20 miles, are each traveling at a uniform speed of 10 miles per hour toward
Radda [10]

Answer:

D = 25 miles

Explanation:

To solve this problem, we just need to know how much time it took both bicyclists to collide and that will be the same amount of time that the bee flew at 25miles per hour. With those values we could calculate the distance it traveled.

Since both bicyclists collide, we know that Xa=Xb, so:

Xa = V*t = 10*t     and    Xb = 20 - V*t = 20 - 10*t

10*t = 20 - 10*t      Solving for t:

t = 1 hour  Now we can calculate the distance for the bee:

D = Vbee * t = 25 * 1 = 25 miles

6 0
3 years ago
In transistor emitter current is equal to which current?
Paladinen [302]
In transistor,
Emitter current is equal to the sum of base current and collector current.
Thanks!
8 0
2 years ago
The composition of the universe only consists of 596 of ordinary matter.<br> True<br> O False
brilliants [131]
True
Because I know lol they make u type so much
6 0
3 years ago
Read 2 more answers
A 0.150-kg cart that is attached to an ideal spring with a force constant (spring constant) of 3.58 N/m undergoes simple harmoni
SVETLANKA909090 [29]

Answer:

E = 0.01 J

Explanation:

Given that,

The mass of the cart, m = 0.15 kg

The force constant of the spring, k = 3.58 N/m

The amplitude of the oscillations, A = 7.5 cm = 0.075 m

We need to find the total mechanical energy of the system. It can be given by the formula as follows :

E=\dfrac{1}{2}kA^2

Put all the values,

E=\dfrac{1}{2}\times 3.58\times (0.075)^2\\\\=0.01\ J

So, the value of total mechanical energy is equal to 0.01 J.

3 0
2 years ago
Find out the kinetic energy of a body of mass 2kg moving with the speed of 3m/s
Varvara68 [4.7K]
Kinetic energy = 1/2mv2

= 1/2 x 2 x 3^2
= 9J
7 0
3 years ago
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