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Elanso [62]
3 years ago
11

Table C. The Effects of a Magnet on Electric Current

Physics
1 answer:
Degger [83]3 years ago
5 0
Magnet moving left to right
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What distance method is used to determine the distance to the most distant galaxies when only a redshift is measured?
Sonja [21]
Supernova observations.

Hope this helped, have a great day! :D
7 0
3 years ago
You are standing on a train station platform as a train goes by close to you. As the train approaches, you hear the whistle soun
adoni [48]

Answer: v = (33320 - 340f2)/( f2 + 98)

Explanation: this question refers to Doppler effect, hence,

f1 = { V / (V - v)} x f2

f1 = 98Hz, f2 = 76 Hz, V = 340m/s, v = ?, fs = fsourcs

For f1,

98 = { 340 / (340 + v)} x fs ...(i)

for f2,

f2 = { 340 / (340 - v)} x fs ... (ii)

Divide (ii) by (i)

98/f2 = [{ 340 / (340 + v)} x fs]÷ [ 340 / (340 - v)} x fs]

98/f2 = {340 / (340 + v)} x fs x (340 - v)} / 340 x fs

98/f2 = (340 + v)/ (340 - v)

Cross multiplying

98(340 - v) = f2 (340 + v)

33320 - 98v = 340f2 + vf2

Collecting like terms

vf2 +98v = 33320 - 340f2

v(f2 +98) = 33320 - 340f2

v = (33320 - 340f2)/( f2 + 98)

5 0
4 years ago
You throw a baseball with a mass of 0.5 kg. The ball leaves your hand with a speed of 35 m/s. Calculate the kinetic energy. (SHO
mixas84 [53]

Answer:

The kinetic energy of the baseball is 306.25 joules.

Explanation:

SInce the baseball can be considered a particle, that is, that effects from geometry can be neglected, the kinetic energy (K), in joules, is entirely translational, whose formula is:

K = \frac{1}{2}\cdot m\cdot v^{2} (1)

Where:

m - Mass, in kilograms.

v - Speed, in meters per second.

If we know that m = 0.5\,kg and v = 35\,\frac{m}{s}, then the kinetic energy of the baseball thrown by the player is:

K = \frac{1}{2}\cdot m \cdot v^{2}

K = 306.25\,J

The kinetic energy of the baseball is 306.25 joules.

6 0
3 years ago
If zak's speed is 3.00 m/s when he starts to slide, what distance d will he slide before stopping? express your answer in meters
OverLord2011 [107]
That will depend on the coefficient of friction between the sliding surfaces, and also on Zak's weight. We don't have any of that information.
8 0
3 years ago
An ice skater can change the rate of their spin by moving their arms into and away from their body without any other forces or t
pychu [463]

Answer:

Angular momentum is conserved if there are no external forces

P1 = P2

I1 ω1 = I2 ω2

ω2 / ω1 = I1 / I2

If the skater pulls their arms in (I2 < I1) then the angular speed must increase for angular momentum to be conserved.

3 0
3 years ago
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