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nikdorinn [45]
3 years ago
10

A dog runs at 35 m/s at 45 degrees N of E. What are its x and y components (all answers

Physics
1 answer:
pickupchik [31]3 years ago
5 0

Answer:

its x and y component is 24.749m/s

Explanation:

Given

Speed of the dog = 35m/s

x component of the speed = xcos theta

y component of the speed = ycos theta

Given theta =45 degrees

x-component = 35cos45

x-component = 35(0.7071)

x-component = 24.749m/s

y-component = 35sin45

y-component = 35(0.7071)

y-component = 24.749m/s

Hence its x and y component is 24.749m/s

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Two capacitors of capacitances 1.0 microfarad and 2.0 microfarads are each charged by being connected across a 5.0-volt battery.
Svetach [21]

Answer:

1.67 V

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Q = Capacitance

Q' = Capacitance after connecting in series

V = Voltage

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Q_1=C_1\times V_t\\\Rightarrow Q_1= 1\times 5=5\ \mu F

Q_2=C_2\times V_t\\\Rightarrow Q_2= 2\times 5=10\ \mu F

As the plates opposite charge are connected together they are in series

Q_1'=Q_2'=Q_t

\frac{1}{C_t}=\frac{1}{C_1}+\frac{1}{C_2}\\\Rightarrow \frac{1}{C_t}=\frac{1}{1}+\frac{1}{2}\\\Rightarrow \frac{1}{C_t}=\frac{3}{2}\\\Rightarrow C_t=\frac{2}{3}

Q_2'=C_tV_t\\\Rightarrow Q_2'=\frac{2}{3}\times 5\\\Rightarrow Q_2'=\frac{10}{3}\ \mu F

V_2=\frac{Q_2'}{C_2}\\\Rightarrow V_2=\frac{\frac{10}{3}}{2}\\\Rightarrow V_2=1.66\ V

The voltage across the 2 microfarad capacitor is 1.67 V

4 0
3 years ago
A negatively charged rod is brought rear the cap of a leaf electroscope. The cap is then earthed momentarily by touching with th
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A gold leaf electroscope's cap develops a negative charge when a negatively charged rod is brought close to it; the case is then grounded, creating a negative charge in the leaf. Option D is correct.

<h3>What is the charge?</h3>

When the matter is put in an electromagnetic field, it has an electric charge, which causes it to experience a force. A positive or negative electric charge can exist.

Similar charges repel each other, whereas dissimilar charges attract each other.

The term "neutral" refers to an item that has no net charge. A charge is something experienced as a force in the electric and magnetic fields.

When a negatively charged rod is brought near the cap of a gold leaf electroscope whose case ad then is earthed, then the leaf has an induced negative charge.

Hence option D is correct.

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brainly.com/question/24391667

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