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vichka [17]
3 years ago
11

H2+O2=H2O need to balance the chemical equation

Physics
2 answers:
sleet_krkn [62]3 years ago
6 0

Answer: he is correct its 2 1 2

Explanation: i did it and got it right

yuradex [85]3 years ago
5 0

Answer:

2         1         2

Explanation:

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A stand shows a pendulum in 5 positions. A has the pendulum bob at a 45 degree angle to the left. C has the pendulum bob straigh
kotegsom [21]

Answer:

plz brainliest

Explanation:

position A : is all potential

position B : is losing potential  and gaining kinetic energy

position c : is all kinetic

position D : is losing kinetic and gaining potential

position E : is all potential

thx have a great day

6 0
4 years ago
Read 2 more answers
The cuboid and the cube below are placed on the floor. The cuboid has a weight of 60N and the cube has a weight of 40N. Which ex
Katarina [22]

Answer:

they both exert the same pressure

Explanation:

Pressure is the ratio of force to area. It is given as:

P=\frac{F}{A} ,  where F is the force, P is pressure and A is area

1) For the cuboid, the area of the base placed on the ground (A) = 8 cm × 3 cm = 24 cm² = 0.0024 m². Therefore the pressure is:

P=\frac{F}{A}=\frac{60}{0.0024} =25000N/m^2=25KN/m^2

2) For the cube, the area of the base placed on the ground (A) = 4 cm × 4 cm = 16 cm² = 0.0016 m². Therefore the pressure is:

P=\frac{F}{A}=\frac{40}{0.0016} =25000N/m^2=25KN/m^2

Therefore, they both exert the same pressure.

3 0
3 years ago
What is an object's change in position, or displacement, and the change in time over which that displacement occurred used to ca
yulyashka [42]
The answer is a  average velocity
7 0
3 years ago
In the Netherlands, there is an annual ice-skating race called the "Tour of the Eleven Towns." The total distar.rce of the cours
rjkz [21]

Answer:

a) The average speed of the record race is 35.2 km/h

b) The time it will take to cover the first half is 2h 42 min

Explanation:

a) The average speed of the record race is calculated dividing the total distance over time:

v = distance/ time

So let´s write the time in hours:

if 60 s is 1 min, then 37 s will be (37 s · 1 min/60 s) 0.62 min.

If 60 min is 1 h, then 40.62 min will be (40.62 min  · 1 h/60 min) 0.68 h

Then, the record time is 5.68 h

The average speed will be:

v = 2.00 × 10² km / 5.68 h = 35.2 km/h

b) Now we have the speed and the distance and have to find the time it will take the skater to cover that distance:

The speed will be:

v = 1.05v = 1.05 · 35.2 km/h = 37.0 km/h

The distance will be:

2.00 × 10² km /2 = 1.00 × 10² km

Then:

v = distance/ time

time = distance /v = 1.00 × 10² km / 37.0 km/h = 2.70 h

If 1 h is 60 min, 0.70 h will be (0.70 h · 60 min/h) 42 min.

The time it will take to cover the first half is 2h 42 min

3 0
3 years ago
If the amount of matter of something is increased
lakkis [162]

Answer:

I need the question first lol

Explanation:

7 0
3 years ago
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