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Lelu [443]
2 years ago
12

Draw a Lewis dot structure for Hf​

Physics
1 answer:
Serjik [45]2 years ago
3 0

Answer:

There!!

Explanation:

mark me brainliest!!

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2. An auditorium has 58 seats in the first row, 62 seats in the second row, 66 seats in the third row, and so
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The answer is (a) hope it helped!<3






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How do intensity, frequency, and time affect physical fitness?
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Which climate condition is typically found in the tropics due to the interaction of the atmosphere and hydrosphere?
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7 0
3 years ago
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What is force applied per unit area
Marizza181 [45]

Answer:

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3 0
3 years ago
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You are a member of an alpine rescue team and must project a box of supplies, with mass m, up an incline of constant slope angle
AlekseyPX

Answer:

v = \sqrt{2gh + \frac{2\mu_kgh}{tan\theta}}

Explanation:

When we push the box from the bottom of the incline towards the top then by work energy theorem we can say that

Work done by all the forces = change in kinetic energy of the system

- mgh - F_f (s) = 0 - \frac{1}{2}mv^2

here we know that

F_f = \mu_k mg cos\theta

also we know that the length of the incline is given as

s = \frac{h}{sin\theta}

now we have

- mgh - \mu_k mgcos\theta(\frac{h}{sin\theta}) = -\frac{1}{2}mv^2

so we have

v = \sqrt{2gh + \frac{2\mu_kgh}{tan\theta}}

3 0
3 years ago
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