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3 years ago

Please the answer with steps

Physics

1 answer:

Mamont248 [21]3 years ago

5 0

Answer:

Is safe to use the bag.

Explanation:

To solve this problem we must use Newton's second law which tells us that the resulting force is equal to the product of mass by acceleration.

F = m*a

where:

F = force [N] (units of Newtons)

m = mass = 15 [kg]

a = acceleration = 7 [m/s²]

Now replacing these values in the previous equation:

F = 15*7

F = 105 [N]

F < 230 [N]

The force of 105 [N] is lesser than the maximum resistance force, therefore is safe to use the bag.

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Ocean waves are traveling to the east at 3.2 m/s with a distance of 19 m between crests. (a) With what frequency do the waves hi

rjkz [21]

Answer:

(a) Frequency will be 0.168 Hz

(b) Frequency will be 0.0789 Hz

Explanation:

(a) We have given velocity of the ocean waves in east direction v = 3.2 m /sec

Distance between the crest $\Delta x=\lambda =19m$

We know that $v=\lambda f$

So $3.2=19\times f$

$f=0.168Hz$

(b)Velocity of the ocean waves in westward direction v = 1.5 m /sec

Distance between the crest $\Delta x=\lambda =19m$

We know that $v=\lambda f$

So $1.5=19\times f$

$f=0.0789Hz$

8 0

4 years ago

A 20 g ball of clay traveling east at 3.5 m/s collides with a 35 g ball of clay traveling north at 2.0 m/s .

Elanso [62]

The movement direction of the resulting 55 g blob of clay 45o north of east and the speed of the resulting 55 g blob of clay is 1.8 m/s.

Calculation:-

Let us consider the east direction as the positive X-direction and the north direction as the positive Y-direction.

Mass of the first ball of clay = m1 = 20 g = 0.02 kg

Mass of the second ball of clay = m2 = 35 g = 0.035 kg

Initial velocity of the first ball of clay = V1 = 3.5 m/s to the east

Initial velocity of the second ball of clay = V2 = 2 m/s to the north

Final velocity of the blob of clay = V3

X-component of the final velocity of the blob of clay = V3x

Y-component of the final velocity of the blob of clay = V3y

By conservation of linear momentum in the X-direction,

m1V1 = (m1 + m2)V3x

(0.02)(3.5) = (0.02 + 0.035)V3x

V3x = 1.273 m/s

By conservation of linear momentum in the Y-direction,

m2V2 = (m1 + m2)V3y

(0.035)(2) = (0.02 + 0.035)V3y

V3y = 1.273 m/s

V3 = 1.8 m/s

A) Movement direction of the resulting 55 g blob of clay = 45o north of east

B) Speed of the resulting 55 g blob of clay = 1.8 m/s

Mass, in physics, quantitative measure of inertia, a essential property of all count. it's miles, in effect, the resistance that a body of rely gives to a alternate in its pace or function upon the software of a pressure. The more the mass of a body, the smaller the alternate produced with the aid of an implemented pressure.

Learn more collision here:-

brainly.com/question/4403635

#SPJ4

5 0

2 years ago

Rank the nonmetals in each set from most reactive (1) to least reactive (3). Bromine: Chlorine: Iodine:

ANEK [815]

The most reactive element of this list is Chlorine, the next most reactive is bromine, and the least reactive is iodine.

All of these three elements are group 7 elements in the periodic table. It is known that the reactivity of group 7 elements decreases down the group. The most reactive element in this group is Flourine with reactivity decreasing down the group.

The reason for this decrease in reactivity is that as you go down the group, the distance between the positive nucleus that attracts valence electrons increases, decreasing the electrostatic attraction between the nucleus and the outer electrons. The other reason is that the electrons in lower energy levels closer to the nucleus repel and shield the electrons in the outermost shell or energy level of the atom.

Chlorine>Bromine>Iodine.

6 0

4 years ago

Read 2 more answers

As a freely falling object picks up downward speed, what happens to the power supplied by the gravitational force?

vitfil [10]

We will start from the definition of power in terms of the Force. Power could be described as the change of energy in an instant of time. Considering that Energy is the product between the Force and the distance traveled we would arrive at the expression

$P = \frac{E}{t}$

$P = \frac{F*h}{t}$

Here,

F = Force

h = Height

t = Time

As there is no external force, apart from the force of gravity, and this, is constant during the course of the object we will also have to be constant power and therefore this during its course will be the same. The correct answer is (1)

4 0

4 years ago

5. An ion consist of 12 electrons and 11 proton. What is the charge<br> on the ion?

sammy [17]

Answer:

-1

Explanation:

Electrons have a negative charge and protons have a positive charge. (+11) + (-12) = -1

5 0

3 years ago