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2 years ago

1. Describe what conversation of momentum means.

Physics

2 answers:

MakcuM [25]2 years ago

7 0

Explanation:

1. Conservation of momentum, general awareness of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects.

Snowcat [4.5K]2 years ago

3 0

Answer:

1. The conversation of momentum is when a person or object has momentum and transfers it to another person or object.

Explanation:

2. Like if someone is on a swing and kicks someone in front of him. He stops and the kid in front of him falls over because the momentum was transferred.

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Technician a says heat transfer is always hot to cold. technician b says high pressure always flows to low pressure. who is corr

r-ruslan [8.4K]

Both the technician are correct.

All the driving force in the universe always flow from the higher body to lower body, until unless acted by external forces. Which means heat always flow from a hotter body to colder body, high pressure always flow to low pressure.

Therefore the both the technician are correct.

5 0

2 years ago

A student applies a 10 N force to a wood block with a mass of 5 kg. The block is pushed across four different surfaces. The acce

Furkat [3]

The complete question is as follows: A student is subjected to a reaction force of 10 N northward from a 5 kg block while pushing the block over a smooth, level surface. Ignoring friction, what is the acceleration of the block?

Answer: The acceleration of the block is $2 m/s^{2}$ .

Explanation:

Given: Force = 10 N

Mass = 5 kg

It is known that force applied on an object is the product of mass and acceleration.

Mathematically, $F = m \times a$

where,

F = force

m = mass

a = acceleration

Substitute the values into above formula as follows.

$F = m \times a\\10 N = 5 kg \times a\\a = \frac{10}{5}\\= 2 m/s^{2}$

Thus, we can conclude that the acceleration of block is $2 m/s^{2}$ .

8 0

2 years ago

Which of the following describes the magnetic field lines produced by the straight wire carrying current? Magnetic field lines r

ss7ja [257]

Magnetic field lines form circles that go around the wire.

7 0

2 years ago

Read 2 more answers

A brush fire is burning on a rock ledge on one side of a ravine that is 25 m wide. A fire truck sits on the opposite side of the

Ierofanga [76]

Answer:

$v_o = 30.5 m/s$

Explanation:

Height of the hose pipe is given as

$y = 4.5 m$

horizontal distance is given as

$x = 25 m$

angle of elevation is given as 35 degree with the horizontal

now we know that the horizontal distance moved is given as

$x = (v_ocos35) t$

$y = 4.5 + (v_o sin35) t - \frac{1}{2}(9.8)t^2$

now we have

$25 = v_o(0.82)t$

also we have

$0 = 4.5 + 0.57 v_o t - 4.9 t^2$

$0 = 4.5 + (0.57)(0.82) - 4.9 t^2$

$t = 1.00 s$

so we have

$v_o = 30.5 m/s$

8 0

2 years ago

Electrical work on a project cannot start until all of the electrical supplies have arrived on site. The relationship between th

BARSIC [14]

Answer:

Explanation:

Finish-Start

Finish to Start is a Logical Relationship in which a Successor Activity cannot start until a Predecessor Activity has finished. What it really means in simple terms we can say that, the Start of a Successor Activity is Dependent on Finish of the Predecessor Activity.

The acquisition of all supplies which is the predecessor activity must finish before the electicalmwork can start which is the successor activity.

7 0

3 years ago