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g100num [7]
3 years ago
9

PLEASEEEEE HELP ME !!!

Physics
1 answer:
Elza [17]3 years ago
4 0

Answer:

maybe its heat sorry if it's wrong

because if friction is not in the problem so we are making heat or thermal energy

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Samantha walked 5km/h . how long did it take to her to travel 15 km? ​
valkas [14]

Answer:

3hrs is the answer

Explanation:

time=d/t

t=15/5 hrs

t=3 hrs

4 0
3 years ago
Suppose that we are designing a cardiac pacemaker circuit. The circuit is required to deliver pulses of 1ms duration to the hear
olchik [2.2K]

Answer:

Minimum capacitance = 200 μF

Explanation:

From image B attached, we can calculate the current flowing through the capacitors.

Thus;

Since V=IR; I = V/R = 5/500 = 0.01 A

Maximum charge in voltage is from 5V to 4.9V. Thus, each capacitor will have 2.5V. Hence, change in voltage(Δv) for each capacitor will be ; Δv = 0.05 V

So minimum capacitance will be determined from;

i(t) = C(dv/dt)

So, C = i(t)(Δt/Δv) = 0.01[0.001/0.05]

C = 0.01 x 0.0002 = 200 x 10^(-6) F = 200 μF

8 0
3 years ago
How can non visible radiation be used
DanielleElmas [232]
Here are some popular applications of
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3 0
4 years ago
Read 2 more answers
How much power is used in a machine that produces 15 Joules of work in 3 seconds? Use the formula P = W/t.
Marta_Voda [28]
P=w/t


w=15
t=3
therefore, 5 watts (b)
7 0
3 years ago
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a = 8ms⁻¹ - 0ms⁻¹  / 1s

a = 8ms⁻¹ / 1 s

a = 8ms⁻² .

8 0
3 years ago
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