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trapecia [35]
3 years ago
8

Jill leaves home and rides a distance of 70 km. It took her 2.5 hours. What is her speed?

Physics
1 answer:
Paraphin [41]3 years ago
5 0
The answer is ...
28 km per hour
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a loop of area 0.100 m^2 is oriented at a 15.5 degree angle to a 0.500 T magnetic field. it rotates until it is at a 45.0 degree
valina [46]

Answer:

0.128

Explanation:

Credit to charlizebarth

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It takes a clothes dryer 45 minutes to dry a load of towels. If the dryer uses 6,750,000 joules of energy to dry the towels, wha
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When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of 200 µC on each plate.
Vika [28.1K]

Answer:

The value is \epsilon =  2.25

Explanation:

From the question we are told that

The charge acquired on each plate is q =  200 \mu C  =  200 *10^{-6} \  C

The additional charge accumulated on each plate is q_a =  250 \mu C  =  250 *10^{-6} \ C

Generally the capacitance of the capacitor before a dielectric slab is inserted is

C_i =  \frac{q}{V}

=> C_i =  \frac{200 \mu C}{V}

Generally the total charge on each plate of the capacitor when the dielectric slab was inserted is

Q =  q + q_a

=> Q = ( 200 + 250 ) \mu C

=> Q = 450 \mu C

Generally the capacitance of the capacitor after a dielectric slab is inserted is mathematically represented as

C =  \frac{450 \mu C}{V}

Generally the dielectric constant is mathematically represented as

\epsilon =  \frac{C}{C_i}

=>      \epsilon =  \frac{450 \mu C}{200  \mu C}

=>       \epsilon =  2.25

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