PHYSICS HIGH SCHOOL

A carousel is spinning at a speed of 100 cm/s, with the outermost horse at a distance 5 m from the center.Calculate the inward force on the outermost horse, if it weighs 1.5 kg.

A) 3 x 10-3 N
B) 3 x 10-2 N
C) 3 x 10-1 N
D) 3 x 10 N

Answers

Answer 1
Answer: The speed is 100/100=1 meter per second, so acceleration is 1^2/5=.2.  Then, the net force is 0.2*1.5 kg = 0.3 N, or 3*10^-1 N.

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Doubling the voltage in a circuit doubles the current if what is held constant?
mr knote a piano tuner taps his 440-hz tunning fork with a mallet. what is the period of the vibrating fork?
Choose most accurate statement:a. Waves can exist in liquids and gases only. b. Waves can exist in liquids and solids only. c. Waves can exist in solids and liquids only. d. Waves can exist in solids, liquids, and gases.
A very small tilt in Earth’s axis would likely cause ____.
The data showed that there was no significant difference in healing times between the two groups, so the researcher concluded that calcium intake has no effect on bone healing time. Why is the conclusion of the researcher not justified?

Simone created a chart to summarize the energy transformations that take place when energy from the wind is used to generate electricity.Which best completes the chart?


nuclear energy transformed to electrical energy

chemical energy transformed to electrical energy

radiant energy transformed to mechanical energy

kinetic energy transformed to mechanical energy

Answers

Kinetic energy transformed to mechanical energy. The object that is being rotated by the wind gains kinetic energy and the motor, that is connected to the rotating object, gains mechanical energy.

The mechanical energy gained will be transformed into electrical energy once  the set up starts to be used for generating electricity.

Answer:

kinetic energy transformed to mechanical energy or D

Explanation:

got it right on edge 2022!

Calculating average speed

Answers


Average speed =

               (distance covered during some period of time)
divided by
               (length of time to cover that distance).

. A ray of monochromatic light (f = 5.09 × 1014hertz) in air is incident at an angle of 30.°
on a boundary with corn oil. What is the angle of refraction, to the nearest degree, for this
light ray in the corn oil?

Answers

The angle of refraction of light ray in the corn oil is 20°.

What is angle of Refraction?

Angle of refraction is the angle the refracted light ray makes with the normal to the oil-air interface.

Given data:

Angle of incidence = 30°

Analysis:

The refractive index of oil is 1.47.

Using the formula for refractive index(n) = (sini)/(sinr)

1.47 = (sin 30)/(sin r)

1.47(sin r) = sin 30

sin r = (sin 30)/(1.47)

sin r = 0.3401

r = arc sin(0.3401)

r = 19.88° which is approximately 20°

Learn more about Refraction : brainly.com/question/10729741

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Answer:

its 20 degrese

Explanation:

Use the Pythagorean theorem to answer this question. A paper airplane is thrown westward at a rate of 6 m/s. The wind is blowing at 8 m/s toward the north. What is the actual velocity of the airplane?2 m/s, northwest
10 m/s, northwest
14 m/s, northwest
48 m/s, northwest

Answers

The correct answer to the question is : 10 m/s , northwest.

EXPLANATION:

As per the question, the velocity of wind V = 8 m/s towards north.

      The velocity of the paper airplane is V' = 6 m/s towards west.

We are asked to calculate the actual velocity of the airplane.

By putting Pythagorean theorem, the actual velocity of the airplane is calculated as -

                  V_(net)^2 =\ V^2+V'^2

                ⇒  V_(net)^2=\ 6^2+8^2

                ⇒  V_(net)^2\ =\ 100

                ⇒  V_(net)=\ √(100)\ m/s

                ⇒  V_(net)=\ 10\ m/s  towards northeast.

Hence, the correct answer is 10 m/s , northwest.              
6^2 + 8^2 = 36 + 64 = 100

sqrt(100) = 10 m/s northwest

the difference between an electric motor and an electric generator is that a motor converts _____ energy into ______ energy, while a generator converts _______ energy into ________ energy

Answers

Answer:electrical,kinetic,kinetic,electrical

Explanation:

Answer:

Electrical, kinetic, kinetic, electrical

Explanation:

Just did it

What is the main function of a telescope?It brings scientists closer to distant objects.

It magnifies light received from distant objects.

It measures the temperature of distant objects.

It measures the wavelengths of incoming light rays

Answers

Explanation :

Telescope is an instrument which is used to magnify distant objects bright, consistent and large.

The function of an ideal telescope must be :

  1. Magnification
  2. Resolution
  3. Power of gathering of light

There are many types of Telescope like:

  • X ray telescope
  • Optical telescope
  • Ultraviolet telescope etc

Hence, the correct option is (b) " It magnifies light received from distant objects ".
It magnifies light received from distant objects.
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