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4 years ago

14

Please Help ASAP

1 answer:

asambeis [7]4 years ago

5 0

Answer:

A - a magnet is moving toward a wire loop

Explanation:

as the magnet moves towards the wire loop its flux increase which activates (or produces) the electric current.

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Explain how and why energy is important to living things. Your answer to this question will become the claim for your scientific

Leto [7]

Answer:

All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used for cellular processes.

Explanation:

7 0

3 years ago

A permanent magnet is placed near a bar of soft iron PQ what will happen

boyakko [2]

Answer:

it will rust

Explanation:

hope it helps

4 0

3 years ago

A trick shot archer shoots an arrow with a velocity of 30.0 m/s at an angle of 20.0 degrees with respect to the horizontal. An a

svlad2 [7]

Answer:

$u'=10.259\ m.s^{-1}$ is the initial velocity of tossing the apple.

the apple should be tossed after $\Delta t=0.0173\ s$

Explanation:

Given:

velocity of arrow in projectile, $v=30\ m.s^{-1}$

angle of projectile from the horizontal, $\theta=20^{\circ}$

distance of the point of tossing up of an apple, $d=30\ m$

<u>Now the horizontal component of velocity:</u>

$v_x=v\ cos\ \theta$

$v_x=30\times cos\ 20^{\circ}$

$v_x=28.191\ m.s^{-1}$

<u>The vertical component of the velocity:</u>

$v_y=v.sin\ \theta$

$v_y=30\times sin\ 20^{\circ}$

$v_y=10.261\ m.s^{-1}$

<u>Time taken by the projectile to travel the distance of 30 m:</u>

$t=\frac{d}{v_x}$

$t=\frac{30}{28.191}$

$t=1.0642\ s$

<u>Vertical position of the projectile at this time:</u>

$h=v_y.t-\frac{1}{2}g.t^2$

$h=10.261\times 1.0642-\frac{1}{2} \times 9.8\times 1.0642^2$

$h=5.3701\ m$

<u>Now this height should be the maximum height of the tossed apple where its velocity becomes zero.</u>

$v'^2=u'^2-2g.h$

$0^2=u'^2-2\times 9.8\times 5.3701$

$u'=10.259\ m.s^{-1}$ is the initial velocity of tossing the apple.

<u>Time taken to reach this height:</u>

$v'=u'-g.t'$

$0=10.259-9.8\times t'$

$t'=1.0469\ s$

<u>We observe that </u> $t>t'$ <u> hence the time after the launch of the projectile after which the apple should be tossed is:</u>

$\Delta t=t-t'$

$\Delta t=1.0642-1.0469$

$\Delta t=0.0173\ s$

8 0

4 years ago

All of the answers have to be dragged into the box

Artyom0805 [142]

Answer:

Acceleration = Passing a car on the highway/Any change in speed or direction/Slowing down to turn at an intersection

Friction = The force that opposes motion/The wheels moving against the road

Newton's first law = An object in motion stays in motion unless acted on by an outside force

Newton's second law = The harder you kick a ball the faster it will travel

8 0

3 years ago

A 2,500 kg car moves at 15 m/s^2; 15m/s^2 is the (blank) of the car.

Neporo4naja [7]

A. Acceleration.
acceleration is m/s^2. speed is m/s

7 0

3 years ago