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Phantasy [73]
3 years ago
8

In the formula Q = m × c × ΔT, which symbol represents specific heat?

Physics
2 answers:
STALIN [3.7K]3 years ago
8 0

Answer:

C is the answer

Explanation:

aivan3 [116]3 years ago
4 0

Answer:

the answer is c

Explanation:

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"if a 20 and a 40 ohm resistor are wired in parallel to a 20v source, what will be the current in the 40 ohm resistor?"
choli [55]

In parallel, neither resistor knows about the other one, and they have no effect on each other.

Each resistor is connected straight to the battery terminals. If the battery is hefty enough, it supplies current to each resistor as if the other one weren't there.

Current through a resistor = (voltage across it) / (its resistance).

Current = (20 V) / (40 ohms)

Current = 1/2 Ampere.

4 0
3 years ago
(1) Develop an equation that relates the rms voltage of a sine wave to its peak-to-peak voltage. a. If a sine wave has a peak-to
Aleks04 [339]

Answer:

(A) Equation will be v=v_msin\omega t=0.75sin(18840t)

(B) RMS value of voltage will be 0.530 volt

Explanation:

We have given peak to peak voltage of ac wave = 1.5 volt

Peak to peak voltage of ac wave is equal to 2 times of peak voltage

So 2v_{peak}=1.5volt

v_{peak}=\frac{1.5}{2}=0.75volt

Frequency of ac wave is given f = 3 kHz

So angular frequency \omega =2\pi f = 2×3.14×3000 = 18840 rad/sec

So expression of equation will be v=v_msin\omega t=0.75sin(18840t) ( As phase difference is 0 )

Now we have to find the rms value of voltage

So rms voltage will be equal to v_{rms}=\frac{v_{peak}}{\sqrt{2}}=\frac{0.75}{1.414}=0.530volt

4 0
3 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
In the following calculations, be sure to express the answer in standard scientific notation with the appropriate number of
Ratling [72]

Answer:

-45,597.07

Explanation:

if not in scientific calculator and yung answer nung sa scientific sa comment na lang dinadownload ko ka eh

4 0
3 years ago
List three examples each of objects that are commonly measured by mass by volume and by length
Simora [160]
<span>length- roads, yard stick, square footage in a room</span>
6 0
3 years ago
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