3. What type of current is produced by a battery? (1 pointparallel current
alternating current
direct current
potential current

Answers

Answer 1

Answer:

Answer:

directcurrenthopethishelped:)

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The gravitational force between 1kg of lead and Earth is _____ the gravitational force between 1kg of marshmallows and Earth.A. greater thanB. less thanC. the same asD. none of the above

Select the correct answer.Light incident on a surface at an angle of 45° undergoes diffused reflection. At what angle will it reflect?
A.
only at angles less than 45°
B.
only at angles greater than 45°
C. only at 45°
at any angle between -90° and 90°
D.
E.
only at 0°
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Answers

Answer:

b i think

Explanation:

Under what conditions will light bend?

Answers

Light refracts or bends when it leaves one medium and enters another one (ex. when it goes from air to water; or when it goes from glass to air). This is because the speed of light is different in different materials (light travels in a vacuum at a speed of 3 x 10^8 m/s and is slower in all other mediums). When light slows down (ex. moves from air into water), the light bends towards the normal; when light speeds up (ex. moves from water into air), the light bends away from the normal.

light has a unique property that when it travels from one transparent medium to another transparent medium of different densities it bends and this property is known as refraction
for eg from water to air wherevelocity of light in water is2.25x 10 raised to power 8 m/s and velocity of light in air is3x10 raised power 8 m/s

What explains the information needed to calculate speed and velocity?

Answers

To calculate speed, you need to know the total distance covered
and the time it took to cover the distance.

To calculate velocity, you need the starting location, the ending location,
and the time it took to go from start to finish.

In unsaturated fats, the fatty acid chain is missing some atoms of _____.

Answers

hydrogen atoms.

Explanation:

This is because unsaturated fatty acids have at least two double-bonded carbon atoms, so they cannot bond with the maximum number of hydrogen atoms.

Answer:

hydrogen atom

Explanation:

they have at least two double bonded carbon atoms,so they they can't bond with the maximum number of hydrogen atom

Newton's _____ Law states that an object's acceleration is directlyrelated to the net force applied and inversely related to the mass of the object.

Answers

Answer:

Newton's second Law states that an object's acceleration is directly related to the net force applied and inversely related to the mass of the object.

Explanation:

Newton's second law states that when force is applied on an object, then it causes acceleration which is directly dependent on the net force applied and varies inversely with the mass of the object.

This law gives us the following equation:

$F=ma$

where $F$ represents net force applied, $m$ represents mass of the object and $a$ represents acceleration caused.

The above equation can be rearranged to:

$a=(F)/(m)$

This equation shows that acceleration is directly dependent on net force and inversely dependent on mass of the body.

Answer:

second - apex

Explanation:

7. Alice holds a black belt in Taekwondo and her fist has a mass of 0.5 kg. Her fist obtains a velocity of 5 m/s in 0.1 seconds from rest. Evaluate the average net force applied to the fist.

Answers

Answer: 25 N

Explanation:

the fist hit by the black belt Alice in the Taekwondo has been given to have a mass of 0.5 kg which acquires a velocity of 5 m/s in a time of 0.1 sec, therefore, the average net force which is being applied to the fist can be calculated by the following method,

Given, mass m=0.5 kg, velocity v=5 m/s, time t=0.1 sec

As we know that, acceleration

$a=(v-u)/(t)=(5-0)/(0.1)=50 \mathrm{m} / \mathrm{s}^(2)$