3 years ago

Select the correct answer from each drop-down menu.

Physics

1 answer:

kirill115 [55]3 years ago

8 0

Answer:

Explanation:

I think but I am sure

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Atoms of which pair of elements will form metallic bonds in a compound?

aliya0001 [1]

Answer:

B -- Cobalt and iron

Explanation:

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2 years ago

What is the net force on a truck if the force of friction is 31 N and the force of the engine is 79 N?

Evgen [1.6K]

Answer:

Fr = 48 [N] forward.

Explanation:

Suppose the movement is on the X axis, in this way we have the force of the engine that produces the movement to the right, while the force produced by the brake causes the vehicle to decrease its speed in this way the sign must be negative.

∑F = Fr

$F_{engine}-F_{brake} =F_{r}\\F_{r}=79-31\\F_{r}=48[N]$

The movement remains forward, since the force produced by the movement is greater than the braking force.

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3 years ago

An airplane pilot wishes to fly due west. a wind of 80.0 km> h (about 50 mi > h ) is blowing toward the south. (a) if the

diamong [38]

let the plane is flying at some angle theta with west towards north

Now we can use the components

$v_y = 320 sin\theta$

$v_x = 320 cos\theta$

now since plane has to fly towards west so net speed in north must be equal to speed in south for air

So we can say

$320 sin\theta = 80$

$sin\theta = \frac{1}{4}$

$\theta = 14.5 degree$

so plane has to fly in direction 14.5 degree North of west

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3 years ago

A small, rigid object carries positive and negative 3.00 nC charges. It is oriented so that the positive charge has coordinates

enot [183]

Answer:

Umax = 105.8nJ

Umin =-105.8nJ

Umax-Umin = 211.6nJ

Explanation:

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3 years ago

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OleMash [197]

Answer:

Religion defines as the rites, rituals and culture followed by the group of people. We have different reliable because everyone have different culture and their habits.

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3 years ago