PHYSICS HIGH SCHOOL

1 kg of rice is weighed by

Answers

Answer 1

Answer:

Answer:

beam balance

Explanation:

A beam balance compares the sample mass with a standard reference mass

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Which of these are considered an oxidizing mutagenic agent?a. x-rays b. benzopyrene c. gamma rays
The sound wave produced can best be described as a ?
A sea breeze occurs because warm air rises on land and moves toward the ocean to cool. The cool air then moves from the ocean to be warmed by the land. a. Trueb. False
What phase of matter is unable to transfer heat by convection
Which factor does not affect the resistance of a material?A. thickness B. weight C. length D. temperature

What is a Vector and a scalar?

Answers

Scalars are quantities that are fully described by a magnitude (or numerical value) alone.
Vectors are quantities that are fully described by both a magnitude and a direction.

One of the leading causes of permanent damage leading to hearing impairment is _____.fluid in the ears
middle ear infections
loud noise that damages hair cells
swelling in the ear canal

Answers

Answer;

loud noise that damages hair cells

One of the leading causes of permanent damage leading to hearing impairment is loud noise that damages hair cells.

Explanation;

Loud noise is the among the leading cause of permanent damage of the ear which impairs hearing.
Loud noise may cause damage to the cells and the membranes in the cochlea of the ear. Listening to loud noise for a very long time overworks the hair cells that may make them to die.
The damage to the cochlea of the ear causes permanent hearing loss since all or part of the inner ear has been damaged.

One of the leading causes of hearing impairment that's due to damage
of the ear machinery is prolonged exposure to loud noise or loud music,
which damage the tiny hair cells that stimulate nerve endings in the inner ear.
Trust me.

How far will a you travel if you run for 10 minutes at 2 m/sec?

Answers

You would travel 1200 meters if you run for 10 minutes at 2 meters /second because the total distance traveled by any object is the multiplication of the speed of the object to the time taken to travel that distance.

What is speed?

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object.

As given in the problem we have to find out the total distance traveled if one runs for 10 minutes at a speed of 2 meters / second.

The running speed = 2 meters / second

The time is taken while running = 10 minutes

=10 ×60

= 600 seconds

The distance traveled by you = 2 meters / second × 600 seconds

=1200 meters

Thus, the total distance traveled by you would be 1200 meters

To learn more about speed from here, refer to the link;

brainly.com/question/7359669

#SPJ2

Well 10*60=600
2m/sec
600*2= 1200

A dryer runs on 240 V with a resistance of 30.0 Ω. What is the current of the dryer?

Answers

Answer:

Current, I = 8 Amps

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

$V = IR$

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Given the following data;

Resistance, R = 30 ohms

Voltage, V = 240V

To find the current;

$I = \frac {V}{R}$

$I = \frac {240}{30}$

Current, I = 8 Amps

Therefore, the current of the dryer is 8 Amperes.

Which of the following statements is true about Planck's Law?. . A. The frequency of the emitted light is inversely proportional to the energy given off by the electrons.. . B.The frequency of the emitted light is directly proportional to the energy given off by the electrons.. . C. The wavelength of the emitted light is directly proportional to the energy given off by the electrons.. .D. The wavelength of the emitted light is inversely proportional to the energy given off by the electrons.

Answers

The statement that is true about Planck's Law is that the frequency of the emitted light is directly proportional to the energy given off by the electrons. The correct answer is B.

Which of the following statements is true about Planck's Law?

Answer: First we have to understand that Planck's law describes electromagnetic radiation. Out of all the statements shown above the option that is true about Planck's Law is B) The frequency of the emitted light is directly proportional to the energy given off by the electrons.

I hope it helps, Regards.

A −12 nC charge is located at (x,y) = (1.0 cm, 0 cm).What is the electric field at the position (x₁,y₁) = (5.0 cm, 0 cm) in component form?What is the electric field at the position (x₂,y₂) = (−5.0 cm, 0 cm) in component form?What is the electric field at the position (x₃,y₃) = (0 cm, 5.0 cm) in component form?Express your answer in terms of the unit vectors i^ and j^. Use the 'unit vector' button to denote unit vectors in your answer.

Answers

Final answer:

The electric fields at the points (5.0 cm, 0 cm), (-5.0 cm, 0 cm), and (0 cm, 5.0 cm) due to a -12 nC charge are -67.5x10^3 i^ N/C, 30x10^3 i^ N/C and -67.5x10^3 j^ N/C respectively.

Explanation:

The subject of this question is Electric Field, a part of physics. Specifically, we're looking at point charges and using the formula for the electric field due to a point charge, which is E = k|Q|/r², where k is the Coulomb's constant, Q is the charge and r is the distance to the point where the electric field is calculated.

At the position (5.0 cm, 0 cm), the distance from the charge is 4.0 cm. Thus, the electric field is E₁ = k|-12 x 10^(-9) C|/(0.04 m)² = -67.5 x 10^3 N/C. In terms of unit vectors, this is -67.5 x 10^3 i^ N/C, because the field points in the negative x direction.
At the position (-5.0 cm, 0 cm), the distance from the charge is 6.0 cm. Thus, the electric field is E₂ = k|-12 x 10^(-9) C|/(0.06 m)² = -30 x 10^3 N/C. In terms of unit vectors, this is 30 x 10^3 i^ N/C, because the field points in the positive x direction.
At the position (0 cm, 5.0 cm), the field is purely in the y-direction, and the point is 4.0 cm above the charge. Thus, the field is E₃ = k|-12 x 10^(-9) C|/(0.04 m)² = -67.5 x 10^3 N/C. In terms of unit vectors, this is -67.5 x 10^3 j^ N/C.