5.40 * 104 NS
6. A wooden ball with a mass of 0.45 kg is at rest when it is tapped by a wooden mallet that applies an
average force of 83 N to the ball. After contact with the mallet, the ball moves forward at 1.3 m/s. How
long was the mallet in contact with the ball?
A. 7.0 milliseconds
B. 3.7 milliseconds
C. 2.4 milliseconds
D. 0.59 milliseconds

The main application of p-n junction diodes, which is in rectification circuits, are basically used to explain the conversion of a.c signals to d.c in power supplies. The resistance of a p-n junction diode becomes low when forward biased and high when reverse biased and it can be used as a half-wave and a full-wave rectifier.

Answer:

C.

Explanation:

Answer:

4km/h

Explanation:

her work is 2km away and she walks for a half hour to get there.

2km in 1/2 hour.

2=1/2x

multiply both sides by 2 to get rid of the fraction and you have your answer of 4km/h.

Answer:

Explanation:

f =ma

F 2500 kg (20m/s-0m/s/15s)

F=2500kg(1.33m/s²)

F =3,325 N

f =ma, F 2500 kg (20m/s-0m/s/15s) and F=2500kg(1.33m/s²), F =3,325 N.

A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects.

The force is no longer felt by the two objects when the interaction ends. Only when there is interaction do forces actually exist.

Action-at-a-distance forces are those that happen even when the two interacting objects are not physically touching each other but are nevertheless able to push or pull against each other despite their physical separation. Gravitational forces are an example of action-at-a-distance forces.

Therefore, f =ma, F 2500 kg (20m/s-0m/s/15s) and F=2500kg(1.33m/s²), F =3,325 N.

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We have that the Time  is mathematically given as

t=0.33h

From the question we are told

Generally the equation for the Time   is mathematically given as

[tex]t=\frac{d}{va+vb}\\\\Therefore\\\\t=\frac{12}{30+6}[/tex]

t=0.33h

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Answer:

C Or D

Explanation:

The Child Should Get Checked On Before You Call The Police Thought,

Answer:

Kinematics:-

Hope it helps!

Answer:

Explanation:

Answer:

color gas?

Explanation:

i think

Answer:

108 m/s/s

Explanation:

a=18 m/s/s

a=f/m

a=2f/1/3m

simplfieid

2 / 1/3=6

so 6a=6*18=108

Answer:

that is weird

Explanation:

i dont know what to say. is there more info?

Answer:

The force required to maintain an object at a constant velocity in free space is equal to Zero.

Answer:

d

Explanation:

Answer:

F= ma        F(forces)      m(mass)          a(acceleration)       So F= (0.15)(3000)

F= 450 N

Explanation:

ok so we can figure it out

The force exerted by the hammer claws on the nail is =1578N

The force that is applied, as the effort on the hammer= F1

The force exerted by the hammer claws on the nail= F2

But,

magnitude of force exerted on hammer= F1*d1

While magnitude of force exerted by the hammer claws on the nail = F2( d2sin30°)

And, F1*d1 = F2( d2sin30°)

Where F1 = 133N

d1 = 29cm = 0.29m

F2 = X

d2 = 4.89cm = 0.0489m

After substitution,

133 × 0.29 = X( 0.0489 × sin30°)

38.57 = X ( 0.0489 × 0.5)

38.57 = X(0.02445)

X= 38.57/0.02445

X = 1578N

Therefore, the force exerted by the hammer claws on the nail is =1578N

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Answer:

Just make sure the distance between two objects isn't much

Answer:

Volumetric cylinders and volumetric flasks are used to measure volume of liquids contained in them. They are calibrated for volume included in them - this is indicated by the marking "IN". The liquid has accurate volume when it reaches the corresponding marking on the scale. Volume is usually indicated in mL. Mark me brainliest please

Answer:

I think it should be ans=A

We have that the overhang possible for the two bricks are is mathematically given as

x=13.5m

Length of Overhang

Question Parameters:

A uniform brick of length 18 m

a maximum overhang of 9 m attained

Length 18 m are stacked over the edge of a horizontal

surface.

Generally the equation that balances the moment    is mathematically given as

[tex]mg*(x-l/2)=mg(L-x)\\\\2x=3l/l\\\\x=3l/4\\\\x=3/4*18\\\\[/tex]

x=13.5m

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Answer:

The change in kinetic energy is twice the change in momentum

Explanation:

The momentum of an object is given by:

where

m is the mass of the object

v is its velocity

While the kinetic energy is given by

We want to check how these two quantities change when the speed of the object doubles, therefore when the new velocity is

For the momentum, we have

So, the momentum doubles.

For the kinetic energy, we have

So, the kinetic energy quadruples.

Therefore, the change in kinetic energy is twice the change in momentum.

Answer:

4.8 watts

Explanation:

power = voltage * current = 12.0 * 0.40 = 4.8 watts

the answer is in the photo.

So, the initial altitude of the parachuter is approximately (C). 123 m.

Hi ! In this question, I will help you. In this question, you will learn about the fall time of the free fall motion. Free fall is a downward vertical motion without being preceded by an initial velocity. When moving in free fall, the following equations apply:

[tex] \boxed{\sf{\bold{h = \frac{1}{2} \cdot g \cdot t^2}}} [/tex]

[tex] \boxed{\sf{\bold{t = \sqrt{\frac{2 \cdot h}{g}}}}} [/tex]

[tex] \boxed{\sf{\bold{v = \sqrt{2 \times g \times h}}}} [/tex]

With the following condition :

We know that :

What was asked :

Step by Step :

[tex] \sf{h = \frac{1}{2} \cdot g \cdot t^2} [/tex]

[tex] \sf{h = \frac{1}{2} \cdot 9.81 \cdot 5^2} [/tex]

[tex] \sf{h = \frac{245.25}{2}} [/tex]

[tex] \boxed{\sf{h = 122.625 \: m \approx 123 \: m}} [/tex]

So, the initial altitude of the parachuter is approximately 123 m (C.)

The altitude of the parachuter is 122.625 meters. From the given options, the closest value is 123m. The correct option is (C).

Given:

Time (t) = 5 seconds

Acceleration due to gravity (g) = 9.81 m/s²

Using the formula for free fall:

Altitude (h) = (1/2) × g × t²

Substitute the values in the above formula:

Altitude (h) = (1/2) × 9.81 × (5)²

Altitude (h) = (1/2) × 9.81  × 25

Altitude (h) = 122.625 meters

Therefore, the altitude of the parachuter is  122.625 meters. Among the given options, the closest value is 123m. The correct option is (C).

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Kinematics  can be explained as science that is used in describing the motion of objects, and these description can be made by the use of;

Kinematics which is a mechanics helps to develop sophisticated mental models which helps in serve describing motion of real-world objects.

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Answer:

A. 13 cm

Explanation:

here the total diameter is given 4 cm,

here the radius then will be 2 cm.

use the formula of circumference of circle = 2πr ........where r is the radius

using the formula: 2 * π * 2 = 4π = 12.57 = 13 cm.