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3 years ago

Most of the countries in Europe use SI measurments. How could this be a problem if you went on a trip to Europe?

2 answers:

8 0

The answer is because we use different measurements than any other country (assuming you live int he U.S) so you would become easlily confused

faust18 [17]3 years ago

5 0

Not knowing how to convert the type of measurement according to your way of learning from where ever you come from.

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A 50 kg boy and his 100 kg father went jogging. Both ran at a rate of 5m/s. Who had more kinetic energy

yanalaym [24]

The father because kinetic energy is calculated using 1/2mv^2, but in this case if the velocity was the same then the mass would affect the calculation, and the father has the greater mass this making him have the greater kinetic energy

4 0

3 years ago

A 100 kilogram person acquires a velocity of 15 meters per second down a ski slope.What is the skier's kinetic energy?

azamat

11250J

Explanation:

Given parameters:

Mass of the person = 100kg

Velocity = 15m/s

Unknown:

Kinetic energy = ?

Solution:

The kinetic energy of a body is energy due to the motion of the body.

Kinetic energy = $\frac{1}{2}$ m v²

m is the mass of the body

v is the velocity

Substituting the parameters:

K. E = $\frac{1}{2}$ x 100 x 15² = 11250J

Learn more:

Kinetic energy brainly.com/question/6536722

#learnwithBrainly

4 0

3 years ago

A neon lamp produces what kind of visible spectrum?

Shalnov [3]

Answer:

Discrete

Explanation:

There can be many kind of visible spectrum. Some of them are as follows :Infrared, Continuous , Blackbody and Discrete.

A neon lamp produces discrete kind of visible spectrum. In this type of spectrum, the spectrum consists of different colors. It means that the neon lamp is made up of different colors or individual frequencies.

Hence, a neon lamp produces discrete visible spectrum.

5 0

3 years ago

A 200.0 g block rests on a frictionless, horizontal surface. It is pressed against a horizontal spring with spring constant 4500

kenny6666 [7]

Answer:

6 m/s

Explanation:

Given that :

mass of the block m = 200.0 g = 200 × 10⁻³ kg

the horizontal spring constant k = 4500.0 N/m

position of the block (distance x) = 4.00 cm = 0.04 m

To determine the speed the block will be traveling when it leaves the spring; we applying the work done on the spring as it is stretched (or compressed) with the kinetic energy.

i.e $\frac{1}{2} kx^2 = \frac{1}{2} mv^2$