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3 years ago

Which of these scientists worked on a team that unified the electromagnetic and weak nucleus force?

Physics

2 answers:

Vitek1552 [10]3 years ago

7 0

Answer:

Sheldon Glashow

Explanation:

the interaction between electromagnetic force and weak nuclear force is also known as Electroweak interaction.

This interaction is was first discovered by Sheldon Glashow and in 1979 he was awarded by Noble prize for his theory.

As per his explanation if the temperature of universe is too high then the electromagnetic force and weak nuclear force will merge and give the interaction as Electroweak force.

So here the correct answer will be

Sheldon Glashow

11Alexandr11 [23.1K]3 years ago

6 0

I believe it was Issac Newton or James Maxwell

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The level of mercury falls in a barometer<br>while taking it to a mountain.

Alexxandr [17]

Answer:

This is due to a relative decrease in atmospheric pressure in high places.

Explanation:

Given that atmospheric pressure decreases at the higher point or ground, this reduced atmospheric pressure, however, will be unable to contain the Mercury in the barometer tube.

Therefore, at the top of the mountain where the air pressure is low, the barometer reading ultimately goes down.

Hence, the level of mercury falls in a barometer while taking it to a mountain "due to a relative decrease in atmospheric pressure in high places."

8 0

2 years ago

Consider a situation where you are playing air hockey with a friend. The table shoots small streams of air upward to keep the pu

artcher [175]

When we hit the puck from tap the puck will move forward.

This is due to the impulse provided by us at the time of hit. Due to this impulse the puck will move forward and start moving in some direction.

As soon as puck move forward the force on it is zero as the weight of the puck is counterbalanced by the air stream force and there is no other force on it so puck will continue its motion till it will hit at some other point.

So here the motion of the puck will be uniform motion till it will collide with some other points.

So here the correct option will be given as

<em>moves with a constant speed until hitting the other end.</em>

5 0

3 years ago

A man pushes a lawn mower on a level lawn with a force of 186.5 N. If 3.8% of this

Paladinen [302]

Explanation:

The force is 186.5 N. 3.8% of the force is directed downward. So the vertical component of the force is:

Fᵧ = 0.038 (186.5 N)

Fᵧ = 7.087 N

The horizontal component is found with Pythagorean theorem:

F² = Fₓ² + Fᵧ²

(186.5 N)² = Fₓ² + (7.087 N)²

Fₓ = 186.4 N

So the work done is:

W = Fd

W = (186.4 N) (7.4 m)

W = 1379 J

Round as needed.

4 0

3 years ago

What is the defination of temperature

Oxana [17]

Answer:

Temperature is a physical property of matter that quantitatively expresses hot and cold

Explanation:

6 0

3 years ago

Read 2 more answers

A ball is thrown straight up into the air with an initial velocity of 50 ft/sec. The height h(t) of the ball after t seconds is

Scrat [10]

Answer:

The average velocity for the time period beginning when t=1 and lasting 0.1 seconds = 16.40 ft/s.

Explanation:

Given that the height of the ball at time t is

$\rm h(t) = (50 t-16t^2)\ ft.$

The average velocity of an object is defined as the total displacement covered by the particle divided by the total time taken in covering that displacement.

If $\rm h_1,\ h_2$ are the heights of the ball at time $\rm t_1$ and $\rm t_2$ , then the total displacement covered by the ball from time $\rm t_2$ to $\rm t_1$ is $\rm h_2-h_1$ .

Thus, the average velocity of the ball for the time interval $\rm t_2-t_1$ is given by

$\rm v_{av}=\dfrac{h_2-h_1}{t_2-t_1}.$

For the time interval, beginning when t = 1 second and lasting 0.1 seconds,

$\rm t_1=1\ sec.\\t_2 = 1\sec + 0.1\ sec = 1.1\ sec.\\\\h_1=50\times 1-16\times 1^2=34\ ft.\\h_2=50\times 1.1-16\times 1.1^2=35.64\\\\Therefore,\\\\v_{av} = \dfrac{35.64-34}{1.1-1}=16.40\ ft/s.$

7 0

3 years ago