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4 years ago

How much a transformer steps-up or steps-down the voltage is determined by the _________.

Physics

2 answers:

Morgarella [4.7K]4 years ago

6 0

It's determined by the turns ratio. (A)

GaryK [48]4 years ago

6 0

A.) Turns Ratio is the answer

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A proton moves with a velocity of v with arrow = (3î − 5ĵ + k) m/s in a region in which the magnetic field is B with arrow = (î

Allisa [31]

Answer:

The magnitude of the magnetic force this particle experiences is $2.6\times10^{-9}\ N$ .

Explanation:

Given that,

Velocity v= (3i-5j+k) m/s

Magnetic field B=(i+2j-k) T

We need to calculate the value $\vec{v}\times\vec{B}$

$(\vec{v}\times\vec{B})=3i+4j+11k$

We need to calculate the magnitude of the magnetic force this particle experiences

Using formula of magnetic force

$\vec{F}=q(\vec{v}\times\vec{B})$

Put the value into the formula

$\vec{F}=1.6\times10^{-19}\times(3i+4j+11k)$

$\vec{F}=(4.8i+6.4j+1.76k)\times10^{-19}$

$|F|=2.6\times10^{-9}\ N$

Hence, The magnitude of the magnetic force this particle experiences is $2.6\times10^{-9}\ N$ .

7 0

3 years ago

A box-shaped metal can has dimensions 6 in by 2 in by 12 in high. All of the air inside the can is removed with a vacuum pump. A

leva [86]

Answer:

a) The total force is 4659.8 N

b) The gauge pressure is 50764 Pa

Explanation:

Given:

Pressure inside = 0

Patm = pressure outside = 1.013x10⁵Pa

Pressure difference = ΔP = 1.013x10⁵ - 0 = 1.013x10⁵Pa

a) The area is equal:

$A=12*6=72in^{2} =0.046m^{2}$

The force is:

$F=delta-P*A=1.013x10^{5} *0.046=4659.8N$

b) The gauge pressure at the bottom is equal:

$P=\rho gh$

Where:

ρ = density = 1000 kg/m³

h = 17 ft = 5.18 m

Replacing:

$P=1000*9.8*5.18=50764Pa$

8 0

3 years ago

When Jane drives to work, she always places her purse on the passenger’s seat. By the time she gets to work, her purse has falle

madam [21]

Answer:

the vibrations push the purse up and down very fast and gravity pushes the purse down onto the floor

Explanation: does that help

7 0

4 years ago

An office worker has his lunch on the 53rd floor of an office building. In which case is the gravitational potential energy of t

alekssr [168]

Answer: In all cases, gravitational potential energy, respect from a common reference level (street level for instance) is the same.

Explanation:

Gravitational potential energy, comes from the action of the gravitational field, which is a conservative one.

This means, that if someone does work against the field (for instance lifting a weight from the ground to a given height), and then drops the weight, the work done by the field will be exactly the same.

Otherwise, the object would have remaining energy after returning to the starting point, which would violate the laws of physics, specially Thermodynamic's 2nd Law.

For this reason, the gravitational potential energy only depends from the height, and is independent from the path taken to reach there.

0 0

4 years ago

Three cars collide, a 1500 kg sports car, a 1750 kg family car, and a 1200 kg compact car. Which experiences the greatest change

sweet [91]

Answer:

Explanation:

This is because momentum is defined as p = mv

delta p = Force *time

neither velocity nor time is given so a conclusion cannot be made on which has the greatest momentum change.

5 0

3 years ago