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3 years ago

Ulesr... 4.What makes the molecular shape of Co, and NH, different? (2 points) luence.

Physics

1 answer:

hichkok12 [17]3 years ago

7 0

The shape is square pyramidal based on an oc- tahedral arrangement of electrons about the Xe atom

hope this helped

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G = 10 N/kg or 10 m/s2

Irina18 [472]

Answer:

a) $U_{g} = 40\,J$ , b) $\eta = 70\,\%$ , c) $v = 20\,\frac{m}{s}$

Explanation:

a) The initial potential energy is:

$U_{g} = (0.2\,kg)\cdot \left(10\,\frac{m}{s^{2}} \right)\cdot (20\,m)$

$U_{g} = 40\,J$

b) The efficiency of the bounce is:

$\eta = \left(\frac{14\,m}{20\,m} \right)\times 100\,\%$

$\eta = 70\,\%$

c) The final speed of Danielle right before reaching the bottom of the hill is determined from the Principle of Energy Conservation:

$K = U_{g}$

$U_{g} = \frac{1}{2}\cdot m \cdot v^{2}$

$v = \sqrt{\frac{2\cdot U_{g}}{m} }$

$v = \sqrt{\frac{2\cdot (40\,J)}{0.2\,kg} }$

$v = 20\,\frac{m}{s}$

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3 years ago

An electric slot car has a coil with 100 turns of wire. These loops have a current of 0.1 A and cover an area of 0.1 cm2. If the

Marrrta [24]

Answer:

The torque will be felt by the coil is zero

Explanation:

The torque is:

$\tau =\mu B=\mu Bsin\theta$

Where

μ is the magnetic moment = N * I * A, where N is the number of turns, I is the current and A is the area

A = 0.1 cm² = 1x10⁻⁵m²

$\mu =100*0.1*1x10^{-5} =1x10^{-4} Am^{2}$

If the angle between the area and the magnetic field is 0 (are in parallel), then:

$\tau =1x10^{-4} *1*sin0=0Nm$

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3 years ago

What angle is formed by the sun, earth, and moon during an eclipse?

Vinvika [58]

Answer is a. 180 degree

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3 years ago

A force of 6.0 Newton’s gives a 2.0kg block an acceleration of 3.0m/s to the right. The force of friction acting on the block is

DochEvi [55]

The force of friction is zero.
Using F = m a = the force needed is 6 N which means no friction can be acting.

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4 years ago

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Sergio039 [100]

I believe that they are Ice Glaciers.

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3 years ago