4 years ago

Average velocity is different than average speed because calculating average velocity involves ?

Physics

2 answers:

Leona [35]4 years ago

8 0

Answer:

displacement

Explanation:

edgenuity

VashaNatasha [74]4 years ago

6 0

direction ................................................................

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how much time do it take for a cheetah running at a speed of 31.67m/s to travel a distance of 1361.81m

ExtremeBDS [4]

V=D/T
V is speed
D is distance
T is time
V=D/T
31.67 m/s = 1361.81 m / T
31.67/31.67=1361.81/31.67
T=43 seconds
Hope this helps

8 0

4 years ago

A particle moving along the x-axis has its position described by the function x=(3.00t3−1.00t 2.00)m where t is in s. at t = 4.0

prohojiy [21]

X =(3.00x4.00 x3-1.00t x 2.00) x m

x= (12.00x3- 1.00 x2.00) x m
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3 years ago

A circular coil with 600 turns has a radius of 15 cm. The coil is rotating about an axis perpendicular to a magnetic field of 0.

Reil [10]

Answer:

The angular frequency is the coil rotating is 1.9 rad/s.

Explanation:

Given that,

Number of turns = 600

Radius = 15 cm

Magnetic field = 0.020 T

Maximum induced emf = 1.6 V

We need to calculate the angular frequency is the coil rotating

Using formula emf

$\epsilon =NBA\omega\sin\omega t$

When induced emf is maximum so $\sin\omega t$ will be 1.

$\omega=\dfrac{\epsilon}{NBA}$

Where, N = number of turns

A = area

B = magnetic field

Put the value into the formula

$\omega=\dfrac{1.6}{600\times\pi\times(15\times10^{-2})^2\times0.020}$

$\omega=1.9\ rad/s$

Hence, The angular frequency is the coil rotating is 1.9 rad/s.

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3 years ago

There is a current I flowing in a clockwise direction in a square loop of wire that is in the plane of the paper. If the magneti

nevsk [136]

Answer:

Explanation:

The magnetic moment of the coil M = current x area of loop

= I x L x L

M = L² I .

Magnetic field = B

Torque = M x B

= MB sinθ where θ is angle between M and B . Direction of M is perpendicular to face of loop

Torque = MB sin90

= MB

= L² I B .

3 0

4 years ago

Angle RST is a right angle. Angle RSU has a measure of 25°.

miskamm [114]

75 because 25 plus 75 equals 90

3 0

4 years ago

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