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3 years ago

Ordinary ocean waves are created by the interaction of the and .

Physics

1 answer:

dmitriy555 [2]3 years ago

7 0

Wind and amplitude creates the waves in an ordinary ocean

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Which of the following is true of work?

FinnZ [79.3K]

Answer:

Explanation:

C: Force and Weight are related. This is not the answer.

B: Not true Much as we might feel this way after working, it is not the answer either. Not in Physics at least.

D: is treated the same way as B.

A: is the actual answer in physics. How you feel has nothing to do with it. Work is some Force moving a distance. Both are needed.

3 0

3 years ago

Rafael is driving his car at 26 m/s. What is the shortest distance in which he can brake and stop if the coefficient of static f

Hitman42 [59]

Answer:

86.14 meters.

Explanation:

Step one:

Given data

velocity of car = 26 m/s

the coefficient of static friction between the tires and the road

µ = 0.4 (kinetic)

Let us take g = 9.81 m/s^2

Required

The distance x = distance in m

We know that

$N = Fg = mg\\\\F_\mu = -\mu N = \mu F_g = \mu mg\\\\KE = (1/2) mv^2$

W = F*x (Work is force times distance)

Step two:

Conservation of energy gives

KE = W

Substituting gives

$(1/2) mv^2 = F \mu x\\\\(1/2) mv^2 = \mu mgx\\\\mv^2 = 2 \mu mgx$

Solving for distance (x) gives

$x = mv^2 / 2 \mu mg$

Simplifying

$x = v^2 / 2 \mu g$

Substitute:

$x = v^2 / 2 \mu g$

$x= 26^2/2*0.4*9.81$

$x=676/7.848\\\\x=86.14$

Therefore, the minimum braking distance is 86.14 meters.

4 0

3 years ago

At what speed (in m/s) will a proton move in a circular path of the same radius as an electron that travels at 8.00 ✕ 106 m/s pe

KonstantinChe [14]

Answer:

4347.8 m/s

Explanation:

It is given that the radius of the circular path traversed by proton and electron is same. Also, we know that magnitude of charge on an electron and proton is same. Magnetic field strength is same for both.

$\frac{m_ev_e^2}{r}=qv_eB\\\frac{m_pv_p^2}{r}=qv_pB\\$

Take the ratio:

$m_ev_e=m_pv_p\\\Rightarrow v_p=\frac{m_e}{m_p}v_e\\\Rightarrow v_p=\frac{1}{1840}\times 8.0\times 10^6 m/s\\\Rightarrow v_p=4347.8m/s$

3 0

3 years ago

The __________ of exercise determines the health and fitness benefit of the exercise. A. frequency B. intensity C. time D. type

MariettaO [177]

Answer:

c- Time

Explanation:

The time will tell depending on the person who is exercising, the rate of time, the workout time. & limits on weights....

6 0

3 years ago

Read 2 more answers

Reason why ink is most likely to ooze out of a pen when one is up in an airplane

Illusion [34]

Answer:

Because in higher altitudes atmospheric pressure is low

8 0

2 years ago

Ordinary ocean waves are created by the interaction of the ____ and ____.

Ordinary ocean waves are created by the interaction of the and .