All categories

3 years ago

What keeps planets in our solar system?

Physics

2 answers:

Neporo4naja [7]3 years ago

8 0

Answer:C

Explanation:

Hatshy [7]3 years ago

5 0

Answer:

C is the correct answer

Explanation:

mark me brainliest plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

You might be interested in

48 You are given two amplifiers, A and B, to connect in cascade between a 10-mV, 100-k source and a 100- load. The amplifiers ha

Sedbober [7]

Answer:

SABL

Explanation:

The best amplifier will be the one that gives us a bigger gain. In each stage will be a load factor that will reduce the gain, that is defined as:

$Fp=\frac{R_{in}}{R_{in}+R_{out}}\\$

where Rin is the input resistance of the next stage and Rout the output resistance of the previous stage.

Analyzing SABL:

$Fp_1=\frac{100K}{100K+100K}=0.5\\\\Fp_2=\frac{10K}{10K+10K}=0.5\\\\Fp_3=\frac{100}{100+1K}=0.0909$

the total gain will be the total gain of each stage multiplied by the load factor.

$SABL_{gain}=0.5*100*0.5*10*0.0909\\SABL_{gain}=22.73\\SABL_{gain_{db}}=20*\log{22.73}=27.13db$

Analyzing SBAL:

$Fp_1=\frac{10K}{10K+100K}=0.0909\\\\Fp_2=\frac{100K}{100K+10K}=0.909\\\\Fp_3=\frac{100}{100+10K}=0.0099$

the total gain will be the total gain of each stage multiplied by the load factor.

$SABL_{gain}=0.0909*10*0.99*100*0.0099\\SABL_{gain}=0.89\\SABL_{gain_{db}}=20*\log{0.89}=-1.01db$

So the best amplifier arrangement is SABL.

4 0

3 years ago

Suppose you want to whisper to the student next to you in class, what must you remember to do with your vocal cords

Juliette [100K]

You have to lower you vocals

7 0

4 years ago

Estefan has determined his BMI at 31. Explain how he can apply the FITT training principles to improve his body composition.

-BARSIC- [3]

Frequency:

Cardio : Five or more
HIIT: 5 or 4

Strength: 2-3 days on non-consecutive days a week

Intensity:
How hard you work during the session

For cardio : workout at your target heart rate.
For HIIT: varying intensity from high to low or rest ( no slow pace)
For strength: you should lift enough weight to complete the needed number of reps and sets.

Time:

For cardio 30- 60 min
For HIIT 45 min (short periods of bursts followed by rest)

For strength depends on the amount of weight.

Type:

Either cardio, HIIT or strength training (resistance training)

NOTE: This info is given by an unqualified brofessor, who uses his hard gained bro-science in the expense of scientific facts to solve others broblems.

7 0

4 years ago

When heat is added to a substance, describe how the molecules are affected. Use the words kinetic energy and potential energy ap

shepuryov [24]

When heat is added to a substance, the molecules increase kinetic energy. in other words, the particules speed up.

3 0

4 years ago

80 km por hora em metros por segundo

Ghella [55]

80 (km / hour) * (1,000 meters/ km) * (1 hour/ 60 minutes) * (1 minute / 60 seconds) = 22.2 meters / second

5 0

3 years ago