All categories

2 years ago

Which best describes Earth's magnetic pole?

Physics

2 answers:

goblinko [34]2 years ago

7 0

Answer:

Explanation:

because with no pole there is no role

egoroff_w [7]2 years ago

7 0

Answer:

Wandering Slowly with no pattern

Explanation:

I apologize to those who got it wrong from the first person.

You might be interested in

FILL IN THE BLANK. immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called th

Marrrta [24]

Immediately following the arrival of the stimulus at a skeletal muscle cell, there is a short period called the latent period during which the events of excitation-contraction coupling occur.

This process is a connection between transduction in the sarcolemma and the initiation of muscle contraction. Sarcolemma is nothing but the cell membrane of skeletal muscle.

A single muscle twitch has a latent period, a contraction phase when tension increases and a relaxation phase when tension decreases.

The period of incubation, the interval preceding exposure to a pathogen toxin or radiation, and when effects occur. Muscle contracting, the time between a nerve stimulus and muscle contraction.

To know more about muscles:

brainly.com/question/13753345

#SPJ4

6 0

1 year ago

A baseball player hits a baseball at an angle of 30 degrees above the horizontal. The baseball’s initial speed is 35 m/s.

Paul [167]

The ball's velocity at 2 sec is 30.4 m/s at $-4.0^{\circ}$ (below the horizontal)

Explanation:

The motion of the ball is a projectile motion, therefore it consists of two independent motions:

- A uniform motion (constant velocity) along the horizontal direction

- A uniformly accelerated motion, with constant acceleration (acceleration of gravity) in the downward direction

This means that:

- The horizontal velocity of the ball is constant, and it is given by

$v_x = u cos \theta$

where

u = 35 m/s is the initial speed of the ball

$\theta=30^{\circ}$ is the angle of projection

Substituting,

$v_x = (35)(cos 30)=30.3 m/s$

- The vertical velocity is changing, and its value is given by

$v_y = u_y + at$

where

$u_y = u sin \theta = (35)(sin 30)=17.5 m/s$ is the initial vertical velocity

$a=g=-9.8 m/s^2$ is the acceleration of gravity (negative because it points down)

t is the time

At t = 2 s,

$v_y = 17.5 + (-9.8)(2)=-2.1 m/s$

where the negative sign means that at t = 2 s, the vertical velocity points down.

Now we can find the magnitude of the ball's velocity at 2 sec:

$v=\sqrt{v_x^2+v_y^2}=\sqrt{30.3^2+(-2.1)^2}=30.4 m/s$

While the direction is given by

$\theta=tan^{-1}(\frac{v_y}{v_x})=tan^{-1}(\frac{-2.1}{30.3})=-4.0^{\circ}$

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

4 0

3 years ago

What causes the frequency of a wave<br> to increase?<br> Adding energy<br> Decreasing energy

andrey2020 [161]

The data convincingly show that wave frequency does not affect wave speed. An increase in wave frequency caused a decrease in wavelength while the wave speed remained constant. ... Rather, the speed of the wave is dependent upon the properties of the medium such as the tension of the rope. THUS, the answer is "Decreasing Energy"

4 0

3 years ago

Read 2 more answers

New York and Los Angeles are about 3000 mi apart, the time difference between these two cities is 3 h. Calculate the circumferen

aleksley [76]

Answer:

circumference of earth = 24000 miles

Explanation:

given data

New York and Los Angeles distance = 3000 mi

time difference = 3 h

to find out

circumference of the Earth

solution

we find speed first that is

speed = $\frac{distance }{time}$

speed = $\frac{3000}{3}$

speed = 1000 mph

now we know speed of earth is

speed = $\frac{circumference of earth}{time of rotation}$

circumference = speed × time of rotation

and we know earth take 24 hours to rotate at its axis

circumference of earth = 1000 × 24

circumference of earth = 24000 miles

7 0

3 years ago

The Flintstones and Rubbles decide to try out the new inclined bowling alley, ``Bedslant Bowling''. Betty's ball and Wilma's bal

bogdanovich [222]

Explanation:

fred ball hit the pin the time for all just put a hit in his right knee and do not need to be on bed at the carbon footprint in his first year of practice at all but his teammates were also on bed and you were a good friend to be with you cute guys that he is the most likely and do you have the ability for you I don't want him on you and

5 0

2 years ago