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murzikaleks [220]
3 years ago
10

How to find the density of air?

Physics
1 answer:
nikitadnepr [17]3 years ago
8 0
You have to divide the pressure exerted by the air into two partial pressures: of the dry air and of the water vapor. Combining these two values gives you the parameter.
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A ball is thrown straight up in the air.When the ball reaches its highest point, which of the following is true?a. It is in equi
olasank [31]

Answer:

option E.

Explanation:

When the ball is at the highest point the velocity of the ball is zero.

At the height point the kinetic energy is zero and potential energy is maximum.

At maximum point momentum cannot be maximum because velocity is zero.

Acceleration on the ball is equal to acceleration due to gravity on the ball.

Hence, the correct answer is option E.

4 0
3 years ago
Giving brain list
Montano1993 [528]

Answer:

1= d

2= c

3= b

4= a

5= c

6= b

7= d

4 0
3 years ago
Read 2 more answers
A form of energy that exhibits wave behavior as it travels through space is
myrzilka [38]

Answer:

Electromagnetic Radiation

Explanation:

Electromagnetic radiation is formed by the combination of electric and magnetic fields, which propagate through space in the form of energy-carrying waves.

Electromagnetic waves have vibrations perpendicular to the direction of wave propagation. For this reason, they are classified among the transverse waves.

Electromagnetic waves travel through space, and do not need a material medium to propagate.

Main types of electromagnetic radiation.

Gamma rays: More energetic radiation. It has the highest frequency (and therefore, the shortest wavelength). They constitute a form of radioactivity.

X-rays: Radiation of less energy than gamma rays. It is used in medical examinations and in the study of metals.

Ultraviolet (UV) rays: Radiation of less energy than X-rays. It comes mainly from the sun.

Visible radiation: Radiation of lower energy than ultraviolet rays. Collect the range of frequencies that can be perceived with the view, from red to violet.

Infrared rays (IR): Radiation of less energy than visible radiation. It is emitted by hot bodies.

Microwave: Radiation of less energy than infrared. It is used in appliances and medical therapy.

TV and radio waves: Less energetic radiation. They are used in telecommunications

4 0
3 years ago
What is the term for actions taken to avoid the effects of a particular risk
NNADVOKAT [17]
Protective Factors is the term taken.
3 0
3 years ago
Suppose a 48-N sled is resting on packed snow. The coefficient of kinetic friction is 0.10. If a person weighing 660 N sits on t
Annette [7]

Assume the snow is uniform, and horizontal.

Given:

coefficient of kinetic friction = 0.10 = muK

weight of sled = 48 N

weight of rider = 660 N

normal force on of sled with rider = 48+660 N = 708 N = N

Force required to maintain a uniform speed

= coefficient of kinetic friction * normal force

= muK * N

= 0.10 * 708 N

=70.8 N


Note: it takes more than 70.8 N to start the sled in motion, because static friction is in general greater than kinetic friction.


8 0
3 years ago
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