PHYSICS HIGH SCHOOL

Alvin and Theodore race across a parkinglot 360 cm long. Alvin travels at 22.03 cm/s
and Theodore at 17 cm/s.
When the Alvin crosses the finish line, how
far behind is Theodore?
Answer in units of cm.

Answers

Answer 1
Answer: Theodore will cross 82.2 cm behind Alvin

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What is the moment of the couple formed by the two forces applied to the corners b and d of a rectangular plate, given that p = 88-n? Resolve each force into horizontal and vertical components, and add the moments of the resulting couples?
Which type of mountain is created when rock layers are pushed up by forces inside the Earth?
Please help with number 5

Air has weight.
a. True
b. False

Answers

Air is a combination of gases, gases do have a mass/weight.
so basically yes air does have weight

What is the average speed in miles per hour of the car that traveled a total of 200 miles in 5.5 hours

Answers

Answer:

Average speed of the car is 36.36 miles per hour

Explanation:

It is given that,

Total distance traveled by the car, d = 200 miles

Total time taken, t = 5.5 hours

In this case, we have to find the average speed of the car. Average speed of the car is defined as the total distance divided by total time taken. Mathematically, it can be written as :

s=(d)/(t)

s=(200\ miles)/(5.5\ hours)    

s = 36.36 miles per hour

Hence, the average speed of the car is 36.36 miles per hour.                                 

Which states the law of conservation of energy?A.
Energy cannot be created or destroyed, but it can be converted or changed into different forms.

B.
Energy can be created or destroyed, and it can be converted or changed into different forms.

C.
Energy cannot be created or destroyed, nor can it be converted or changed into different forms.

D.
Energy can be created or destroyed, but it can not be converted or changed into different forms.

Answers

Statement A is correct. Energy cannot be created or destroyed it can only be converted or changed into different forms. 

The other forms include kinetic, potential and internal energy. Heat, and work are also other forms of energy. 
b. Energy can be created or destroyed, and it can be converted or changed into different forms.

Please help me solve

Answers

Answer:

I think D

Explanation:

Every charged particle produces ?

Answers

Every charged particle produces a magnetic field.

A _____ is used in a motor to switch the direction of the magnetic field created by the current.The rotating part of a motor that holds the electromagnets is called the _____.
Electric current passes through the _____ and into the electromagnets in an electric motor.
A motor turns _____ energy into _____ energy.

Answers

Answer:

A _commutator_ is used in a motor to switch the direction of the magnetic field created by the current.

The rotating part of a motor that holds the electromagnets is called the __armature___.

Electric current passes through the _brushes_ and into the electromagnets in an electric motor.

A motor turns _electrical_ energy into _mechanical_ energy.

Explanation:

A commutator, which is a split ring rotary switching device, reverses the direction of the current between the external circuit and the rotor. Reversing the current reverses the magnetic field.

The armature comprises the rotating part of the motor and the electromagnets

A brush is the electrical contact for conducting current through the moving and stationary parts of an electric motor

An electric motor turns electrical energy into mechanical energy.
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