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sergeinik [125]
3 years ago
15

A machine that uses magnetism to view the human body

Physics
1 answer:
kow [346]3 years ago
5 0

Answer:

Explanation:

Magnetic Resonance Imaging (MRI)

This technology is a type of medical imaging that uses magnetism and the large percentage of water in the human body to produce detailed images of human body tissue and structures.

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Bullets from two revolvers are fired with the same velocity. The bullet from gun #1 is twice as heavy as the bullet from gun #2.
IrinaVladis [17]

Answer:

option C

Explanation:

Let mass of the bullet be m and velocity be v

mass of gun be M and bullet be V

now,

using conservation of momentum for gun 1

(M+m) V' = 2 mv + 3 MV

V' = 0

3 M V = - 2 mv

momentum of gun 1 =- 2 mv---------(1)

now for gun 2

(M+m) V' = mv + MV

V' = 0

M V = - mv

momentum of gun 1 = -mv-----------(2)

dividing equation (1) by (2)

\dfrac{P_m1}{P_m2} = \dfrac{- 2mv}{-mv}

\dfrac{P_m1}{P_m2} = \dfrac{2}{1}

the correct answer is option C

7 0
3 years ago
David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which typ
Naya [18.7K]

Answer: rolling friction

Explanation: I think it is the answer

3 0
3 years ago
A student said,Today, giraffes have long necks that allow them to eat leaves high in trees. They got longer necks by stretching
Oksanka [162]

Answer:

yes because there is also a theory about this I studied in biology

theory name -Lamarck's theory

3 0
3 years ago
What pattern does the earth revolve around the sun?.
Whitepunk [10]

Answer: The Earth moves around the Sun in an extended circular or oval pattern. Or otherwise known as an "elliptical" orbit.

Hope this helps!

7 0
3 years ago
Read 2 more answers
1.A worker pulls horizontally on a crate across a rough horizontal surface, causing it to move forward with constant velocity. F
Ymorist [56]

1. Answer:

The relationship between Force A and Force B is given as:

A = B

Explanation:

To produce acceleration to a body, an unbalanced force must be applied. Meaning that a Force must be applied to the body greater than that of Force of Friction.

In our case, a Force A is exerted on the crate which is moving with a constant velocity. As there is no acceleration, the force applied must be equal to the force of Friction B.

2. Answer:

The electron's acceleration is 1.756 x 10¹⁷ ms⁻².

Explanation:

Electric field exerts a Force on the electron given as:

F = 1.6 x 10⁻¹³ N

Rest mass of electron = 9.11 x 10⁻³¹ kg

According to newton's 2nd law of motion, a net force F applied on the electron must produce an acceleration 'a' which is directly proportional to the Force and inversely proportional to the rest mass of the electron given as:

a = F/m

a = (1.6 x 10⁻¹³)/(9.11 x 10⁻³¹)

a = 1.756 x 10¹⁷ ms⁻²

4 0
3 years ago
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