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Mazyrski [523]
2 years ago
5

What is the wave speed of a wave with a period of 5 seconds and a wavelength of 50 meters?

Physics
1 answer:
devlian [24]2 years ago
8 0

Answer:

10m/s

Explanation:

speed is calculated by taking distance covered then divided by time taken .

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A 80 kg parent and a 20 kg child meet at the center of an ice rink. They place their hands together and push. The parent pushes
Ymorist [56]

Answer:

force acting on the parent = 25 N .

Explanation:

According to third law of Newton , there is equal and opposite reaction to every action . Here force by the parent on child is action and the force by child on parent is reaction . The former is given as 25 N so force by child on parent will also be 25 N .

Answer is 25 N .

4 0
3 years ago
How much time is needed for a car to accelerate from 2.0 m/s to a speed of 6.0 m/s if its acceleration is 10 m/s^2
krok68 [10]

Answer:

I need help on dbq

Explanation:

3 0
2 years ago
Can someone please help me match these up
yaroslaw [1]

Answer:

you need to give the answers choices

Explanation:

4 0
3 years ago
What is the relationship between mass and weight in physics?
Alex_Xolod [135]

We are aware that weight is the product of applied gravitational force and mass. W = MG thus, where W represents the weight, M the mass, and G the gravitational force. As a result, it might also mean that "an object's weight is directly proportionate to its mass."

<h3>What is mass?</h3>
  • Mass is a physical body's total amount of matter.
  • It also serves as a gauge for the body's inertia, or resistance to acceleration (change in velocity) in the presence of a net force.
  • The strength of an object's gravitational pull to other bodies is also influenced by its mass.
  • The kilogram is the primary mass unit in the SI (kg).
  • Even though weight is frequently measured using a spring scale rather than a balancing scale and directly compared with known masses, mass is not the same as weight in physics.
<h3>What is weight?</h3>
  • The force exerted on an object by gravity is known as the weight of the object in science and engineering.
  • Weight is sometimes described as a vector quantity, or the gravitational force exerted on the object, in some common textbooks.
  • Others define weight as a scalar quantity, the gravitational force's strength.
  • Others define it as the strength of the force applied to a body as a result of systems designed to resist the effects of gravity; the weight is the amount that is determined, for instance, by a spring scale.

Learn more about mass here:

brainly.com/question/19694949

#SPJ4

7 0
1 year ago
What is the direction of the magnetic field if an electron moving in the positive x direction experiences a magnetic force in th
Alex787 [66]

Given :

An electron moving in the positive x direction experiences a magnetic force in the positive z direction.

To Find :

The direction of the magnetic field.

Solution :

We know, force is given by :

\vec{F}=q(\vec{v}\times \vec{B)}

Here, q = -e.

\vec{F}=(-e)(\vec{v}\times \vec{B)}\\\\\hat{k}=(-e)(\hat{i}\times \vec{B})

Now, for above condition to satisfy :

\hat{i}\times \vec{B}=-\hat{k}

So, \vec{B}=-\hat{j}

Therefore, direction of magnetic field is negative y direction.

Hence, this is the required solution.

7 0
3 years ago
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