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Gelneren [198K]
3 years ago
13

Need help on all three pizza?

Physics
1 answer:
ahrayia [7]3 years ago
7 0
1. 12m/s and here’s how. The equation for calculating velocity of a wave is lambda x frequency. So 2m x 6Hz. Hz can be 1/s so the only unit of measurement we get is meters and seconds. So the answer will be 12m/s.

2. Frequency=2Hz period= 0.5 seconds
Equation for frequency is velocity/wavelength. 10m/s divides by 5m = 2Hz.
Equation for period is 1 / frequency. 1 divided by 2 = 0.5 seconds

3. The answer is the picture of you can’t read my hand writing comment and say “ I need the info about the wave because I can’t read your hand writing “ thank you and I hoped I helped

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Please help me pwease
Alisiya [41]

Answer:

Iron

Explanation:  It is by mass the most common element on Earth, right in front of oxygen, forming much of Earth's outer and inner core.

6 0
3 years ago
A 3 kg ball rolls at 2m/s does this system favor kinetic energy or potential energy?
MissTica

Answer:

Kinetic energy

Explanation:

Total energy of any  system is always conserved.

E = K +U

E= Total energy

K = kinetic energy

U = Potential energy

Kinetic energy is the energy acquired by the system due to the virtue of it's motion.

Potential energy is the energy acquired by the system due to the virtue of it's configuration.

Also, Kinetic energy K = \frac{1}{2} m v^{2}

K = \frac{1}{2} \times 3 \times 2^{2}

K = 6 J

5 0
3 years ago
A liquid at rest in a fixed container exerts a force perpendicular to the wall of the container. Two students make claims about
Svetllana [295]

Answer:

C

Explanation:

Given that a liquid at rest in a fixed container exerts a force perpendicular to the wall of the container. Two students make claims about the microscopic cause of this force. Student A says that the force exerted by individual molecules as they bounce off the wall is always perpendicular to the wall. Student B says that the molecules may strike the wall at angles that are not perpendicular. Which student is correct and why?

The correct answer is option C

Student B . The molecules in a liquid are in random motion at the microscopic scale. For every atom that hits at an angle to one side of perpendicular, there is likely to be another atom hitting at the same speed at the same angle on the other side of perpendicular. On average the nonperpendicular components cancel

5 0
4 years ago
A student pushes a chair into a desk. If the student's push is the action force, then what is the reaction force in this example
Brrunno [24]

Answer: C

Explanation:

7 0
3 years ago
Read 2 more answers
Is a fault or igneous intrusion that cuts across rock layers younger or older than the rocks it disrupts?
Ksju [112]
It is younger because there had to be rock layers already present for that to be possible.
4 0
3 years ago
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