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Serggg [28]
3 years ago
12

A hockey puck is sliding at a constant rate of 2m/s on a frictionless surface. How fast will the puck be moving after 10 sec

Physics
1 answer:
AnnyKZ [126]3 years ago
5 0
2m/s because the hockey puck is traveling at a constant speed ( acceleration is 0 ). Unless something acts on the hockey puck it will travel 2 m/s forever.
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Where are alkaline earth metals found on the periodic table?
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Answer:

B

Explanation:

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Under what atmospheric condition is fog most often formed in the san joaquin valley?
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The speed of sound in steel is 5000 m/s. What is the wavelength of a sound wave of frequency 660 Hz in steel?
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Answer:7.58 m

Explanation:

5 0
3 years ago
(4 points) A machinist is required to manufacture a circular metal disk with area 1000 cm2 . (a) What radius produces such a dis
zlopas [31]

Answer: a) the radius is 17.846.

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6 0
3 years ago
t the equator, near the surface of Earth, the magnetic field is approximately 50.0 μT northward and the electric field is about
Stels [109]

Answer:

Explanation:

Given that,

Magnetic field B = 50.0 μT

B = 50 ×10^-6 T

Electric field E = 100N/C

Instantaneous speed of electron

V = 6×10^6 m/s

Charge of an electron

q = 1.609×10^-19C

Mass of an electron is

m = 9.11×10^-31kg

A. Formula to calculate the gravitational force is given as

F = mg

F = 9.11×10^-31 × 9.81

F = 8.94 × 10^-30 N.

The gravitational force is 8.94×10^-30 N upward

B. Formula to calculate the electric force is given as

F = qE

F = 1.609 × 10^-19 × 100

F = 1.609 × 10^-17 N.

The electric force is 1.609 × 10^-17 N, upward

C. Formula to calculate the magnetic force is given as

F = qVB

F = 1.609 × 10^-19×6×10^6×50×10^-6

F = 4.83 × 10^-17 N

The magnetic force is 4.83×10^-17N, downward

4 0
3 years ago
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