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4 years ago

Give three practical uses of electromagnets

1 answer:

7 0

Three practical uses of electromagnets would be
Light. The waves
Electric locks. The bolts that are used by the
coils
Cranes. The electric ones that are found in
scraps
Cars computers washing machines all use
Electromagnets . Even CD players DVDs
Players

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A space craft is traveling in interplanetary space at a constant velocity. what is the estimated distance traveled by the space

mina [271]

Answer:

A. 2.30 x 10^2 kil

Explanation:

3/2 = 1.5 and 0.72/2 = 0.36

1.93 + 0.36 = 2.29

2.29 = about 2.30

7 0

3 years ago

Which statement most accurately compares earth crust and earth mantle

Aliun [14]

Answer:

Earth crust is thinner and less dense than the mantle.

Earth crust is thinner and less dense than the mantle.

7 0

3 years ago

Gaseous helium is in thermal equilibrium with liquid helium at 6.4 K. The mass of a helium atom is 6.65 × 10−27 kg and Boltzmann

chubhunter [2.5K]

Answer:

162.78 m/s is the most probable speed of a helium atom.

Explanation:

The most probable speed:

$v_{mp}=\sqrt{\frac{2K_bT}{m}}$

$K_b$ = Boltzmann’s constant = $1.38066\times 10^{-23} J/K$

T = temperature of the gas

m = mass of the gas particle.

Given, m = $6.65\times 10^{-27} kg$

T = 6.4 K

Substituting all the given values :

$v_{mp}=\sqrt{\frac{2\times 1.38066\times 10^{-23} J/K\times 6.4 K}{6.65\times 10^{-27} kg}}$

$v_{mp}=162.78 m/s$

162.78 m/s is the most probable speed of a helium atom.

4 0

4 years ago

Describe why the overall charge of it Atom is 0

nata0808 [166]

Answer:

Explanation:

Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral.

3 0

3 years ago

Diego and Mika are trying to remove a tire from

Schach [20]

The force is an additive quantity allows to find the result for the total force exerted by the two people is:

$F_{total}$ = 54 N

Newton's second law gives a relationship between the net force, the mass and the acceleration of the body, when the acceleration is zero, this expression is called the equilibrium condition.

∑ F = 0

Where F is the force that is a vector quantity and therefore additive.

They indicate that the two people pull with a force of 23 N and 31 N in the same direction.

$F_{total} = F_1 +F_2$

Let's calculate.

$F_{total}$ = 23 +31

$F_{total}$ = 54 N

In conclusion, using that force is an additive quantity, we can find the total force exerted by the two people is:

$F_{total}$ = 54 N

Learn more here: brainly.com/question/2197607

7 0

3 years ago