What does SPF stand for?

Answers

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Endothermic reactions give off heat as they proceed. a. True b. False
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The grid in a triode is kept negatively charged to prevent...-the variations in voltage from getting too large -the electrons from being attracted to the grid instead of the anode -electrons from escaping from the tube containing the triode
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Identify and describe the features found on the ocean basin floor?

An object has a mass of 20,000kg and a density of 4000kg/m? What is its
volume?

Answers

The answer is 20000kg

At which temperature in water does sound travel the fastest?a. 15 C
b. 20 C
c. 18 C
d. 25 C

Answers

15 it can be sound in travel fastest

Which type of star has the widest range in brightness and surface temperature?a. giant
b. white dwarf
c. neutron
d. main sequence

Answers

Answer:

the best answer is Giant.

Explanation:

I believe It's...

d. main sequence

If vx = 0.40 meters/second and vy = 3.00 meters/second, what is the value of θ?

Answers

θ is the angle whose tangent is 3/0.4 = arctan (7.5) = 82.4°

(That's the angle above the horizontal. If that doesn't match
the θ in your diagram, too bad ! For some strange reason,
I wasn't able to see your diagram.)

What objects can be seen from earth because they producde there own light? 

Answers

- neon signs
- fireworks
- rockets during the ascent
- meteors
- fireflies
- stars

Which of the following do waves carry?a) matter
b) energy
c) matter and energy
d) the medium

Answers

Waves carries energy among the given options. Hence, option (b) is correct.

What is wave?

A wave is a dynamic disturbance that propagates and causes a change in equilibrium of one or more parameters in physics, mathematics, and related subjects. Quantities may oscillate regularly around an equilibrium (resting) value at certain frequency if a wave is periodic.

A travelling wave is one in which the entire waveform moves in one direction; in contrast, a standing wave is one in which two periodic waves are overlaid and move in the opposing directions. In a standing wave, there are some points where the wave amplitude seems reduced or even zero, and these positions have null vibration amplitudes.

Wave equations (standing wave fields of two opposing waves) or one-way wave equations (single wave propagation in a certain direction) are frequently used to describe waves.

Learn more about wave here:

brainly.com/question/3639648

#SPJ6

i would go with energy, because they give alllooooot of energy, from the waves.
hope that this would help you! =)

Other Questions

A conducting material must have many free electrons to qualify as an insulator.

An opaque material absorbs some light frequencies that shine on it and reflects others. True False please help me

Can any one Explain how energy is conserved in a heat pump.

Change the following data into scientific notation.5 000 000 km