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3 years ago

Two glasses of water have the same thermal energy. must they have the same temperature? explain.

Physics

1 answer:

taurus [48]3 years ago

3 0

No,because they may have more particles

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HELP ME ANSWER THIS PLZ I WILL GIVE BRAINLIEST

disa [49]

Answer:

In mitosis, the products are identical to the parent cell, while in meiosis the products are different from the parent cell.

Explanation:

Mitosis replicates DNA at the beginning of the process, so it's always the same, but Meiosis uses a special process called crossing over which causes two chromosomes to swap information, which means that the DNA has changed.

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3 years ago

Which object is not accelerating?

AleksAgata [21]

I would say d because the student isn’t moving, the Ferris wheel is.

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3 years ago

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A circular loop of wire having a radius of 5.58 cm carries a current of 0.230 A. A vector of unit length and parallel to the dip

Sidana [21]

Answer:

see explanation

Explanation:

Given quantities:

radius = r = 0.0558 [m]

current = I = 0.23 [A]

$\vec{B} =$

Now we solve this by obtaining the torque acting on the dipole

$\tau = M \times B$

We obtain the magnetic moment vector M, first, |M| is defined as $M = IA$ , where A is the cross-section area of the loop which is $A = \pi r^2=\pi (0.0558)^2= 0.00978 [m^2]$ then

$|M| = 0.23*0.00978 = 0.00225 [A/m^2]$

now the magnetic moment vector is equal to the magnetic dipole moment vector multiplied the magnitude we just obtained $\vec{M} = M \hat M$

$= 0.00225 *$

Now:

a ) $\tau = M \times B$

b) $U = -M \cdot B$

a) the determinant gives us:

b) the dot product gives = $-1*-7.2*10^{-6} = 7.2*10^{-6}[J]$

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3 years ago

To develop a product that warms peoples hands would you use an exothermic or endothermic reaction? Why?

il63 [147K]

Exothermic because exothermic reactions transfer energy to the surroundings. Endothermic reactions take in energy from the surroundings, so if you want to warms people's hands you should use exothermic chemical reaction for the product.

4 0

3 years ago

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In February 1955, a paratrooper fell 362 m from an airplane without being able to open his chute but happened to land in snow, s

serious [3.7K]

Answer:

s = 0.9689 m

Explanation:

given,

Height of fall of paratroopers = 362 m

speed of impact = 52 m/s

mass of paratrooper = 86 Kg