Answer:
Approximately 
(downwards.)
Assumptions:
- the rocket started from rest;
- the gravitational acceleration is constantly
; - there's no air resistance on the rocket and the two fragments.
- Both fragments traveled without horizontal velocity.
Explanation:
The upward speed of the rocket increases by 
. If the rocket started from rest, the vertical speed of the rocket should be equal to 
.
The mass of the rocket (before it exploded) is 1500 kilograms. At 20 m/s, its momentum will be equal to 
.
What's the initial upward velocity, 
, of the lighter fragment?
The upward velocity of the lighter fragment is equal to 
once it reached its maximum height of 
.
.
.
Mass of the two fragments:
- Lighter fragments:
. - Heavier fragment:
.
Initial momentum of the lighter fragment:
.
If there's no air resistance, momentum shall conserve. The momentum of the lighter fragment, plus that of the heavier fragment, should be equal to that of the rocket before it exploded.
The initial momentum of the heavier fragment should thus be equal to the momentum of the two pieces, combined, minus the initial momentum of the lighter fragment.
.
Velocity of the heavier fragment:
.
The magnitude of emf induced in the single coil of wire rotated in the uniform magnetic field is 0.171 V.
<h3>
Induced emf</h3>
The emf induced in the loop is determined by applying Faraday's law of electromagnetic induction.
emf = N(dФ/dt)
where;
- N is number of turns of the wire
- Ф is magnetic flux
Ф = BA
where;
- B is magnetic field strength
- A is the area of the loop
emf = NBA/t
A = πr²
A = π x (0.13)²
A = 0.053 m²
emf = NBA/t
emf = (1 x 3.746 x 0.053)/(1.16)
emf = 0.171 V
Thus, the magnitude of emf induced in the single coil of wire is 0.171 V.
Learn more about induced emf here: brainly.com/question/13744192
Answer:
Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles.
the giving off of rays of energy or particles by the breaking apart of atoms of certain elements (as uranium) 2 : the rays or particles that are given off when atoms break apart.
The three most common types of radiation are alpha particles, beta particles, and gamma rays.
HOPE IT HELPS
BRAINLIEST PLEASR
The planets have (their) moons. So the answer would be planets.
Convex lenses when placed in the air, will cause rays of light (parallel to the central axis) to converge.
Converging lenses, commonly referred to as convex lenses, have thicker centers and narrower upper and lower margins. The edges are outwardly curled. This lens has the ability to concentrate a beam of parallel light rays coming from the outside onto a spot on the opposite side of the lens.
The image created is referred to be a genuine image when it is inverted relative to the object. On a screen, this kind of image can be recorded. When the object is positioned at a point farther than one focal length from the lens, a converging lens creates a true image.
A virtual image is one that cannot be produced on a screen and is formed when the image is upright in relation to the object. When an item is positioned within one focal length of a converging lens, a virtual image is created. It creates an enlarged image of the object on the same side of the lens as the image. It serves as a magnifier.
Learn more about the convex lens here:
brainly.com/question/12847657
#SPJ4
