A 70.7 kg high jumper leaves the ground with
a vertical velocity of 6.7 m/s.
How high can he jump? The acceleration
of gravity is 9.8 m/s^2.
Answer in units of m

Answer:

C.

Explanation:

Answer:

Gas Giants don't have hard surfaces and instead have swirling gases above a solid core. like Jupiter and Saturn and are manly filled with helium and/or hydrogen.

Explanation:

The distance the ball would have traveled is 1,066.72 m.

The relative velocity of two objects moving in the same or opposite direction can be used to determined the time of motion when the two objects move to a certain distance.

[tex](V_a + V_b) t = d\\\\(3 + 3 ) t =400\\\\t = \frac{400}{6} \\\\t = 66.67 \ s[/tex]

[tex]d = Vt\\\\d = 16\ m/s \ \ \times \ \ 66.67 \ s\\\\d = 1,066.72 \ m[/tex]

Thus, the distance the ball would have traveled is 1,066.72 m.

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Answer:

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

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:

color gas?

Explanation:

i think

We have that the statements found falsifiable is

Henry Ford invented the first automobile.

Option A

Generally in as much Ford motor is a great vehicle company

He did not create the first automobile

Credit is give to Karl Benz for The first auto-mobile

Therefore

The statements found falsifiable is

Henry Ford invented the first automobile.

Option A

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Answer:

4.8 watts

Explanation:

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

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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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:

Kinematics:-

Hope it helps!

Answer:

Explanation:

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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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.

We have that heat flow out of the copper sample  is mathematically given as

Q=8.86809J

Question Parameters

Endothermic Reaction

It is common knowledge that an endothermic reaction is one where the system absorbs heat energy from the environs.

Exothermic Reaction

An exothermic reaction is one where the system releases heat energy to the environs.

Generally the equation for Heat   is mathematically given as

[tex]Q=mCdt\\\\Therefore\\\\Q=0.349*0.385*(87-21)[/tex]

Q=8.86809J

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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:

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

F= 450 N

Explanation:

ok so we can figure it out

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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it's true because we'll engery and causes of matter work together I think

Answer:

C Or D

Explanation:

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

the answer is in the photo.

Answer:

I think it should be ans=A

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:

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:

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.

The different ways the student is using energy in this picture is by using electricity to operate his tool and another energy is light energy.

Energy is the capacity to perform a job in physics. It could exist in many diverse variations, such as potential, kinetic, heat, electrical, chemical, nuclear, etc. In addition, energy is transmitted from one item to another through the processes of heat and work. After being transferred, energy is always primarily determined by its original nature. Therefore, heat transmission may seem like latent heat while the effort done may produce mechanical energy

All forms of energy have the quality of motion. A body, for instance, has kinetic energy while it is moving. A tensioned object, such as a spring or bow, has the ability to move even while at rest because of the way it is constructed; this design stores potential energy.

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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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