A balloon drifts 140m toward the west in 45s ; then the wind suddenly changes and the balloon flies 90m toward the east in the next 25s. What distance did it travel during the first 45s?

Answers

Answer 1

Answer:

Answer: 140 m

Explanation:

Let's begin by stating clear that motiont is the change of position of a body at a certain time. So, during this motion, the balloon will have a trajectory and a displacement, being both different:

The trajectory is the path followed by the body, the distance it travelled (is a scalar quantity).

The displacement is the distance in a straight line between the initial and final position (is a vector quantity).

So, according to this, the distance the balloon traveled during the first 45 s (its trajectory) is 140 m.

But, if we talk about displacement, we have to draw a straight line between the initial position of the balloon (point 0) to its final position (point 90 m). Being its displacement 95 m.

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_____________ was a popular technique used by animator, Tim Burton. With this animation technique, objects/puppets are made by the artist, and each time they are moved, the artist photographs them instead of drawing them.a. Cel animation
c. Projecting animation
b. Computer Generated Imagery
d. Stop motion animation

Answers

The correct answer is D. stop motion animation. It's called stop motion because you make an illusion of a motion by moving and stopping the characters and then reshooting. This is pretty common but takes a lot of time so not many people choose to do it. It also takes great skill to do it, not just patience.

Stop motion animation is the popular technique that is used by animator, where objects/puppets are made by the artist, and each time they are moved.

What is animation?

Animation can be regarded as a method whereby figures are been manipulated so as to appear as moving images.

One of the notable type of animation is Stop motion animation where the artist photographs the figure instead of drawing them.

Learn more about animation at;

brainly.com/question/25109803

Work done by the resultant force is always equal to change in kinetic energy a)True b)False

Answers

b) False

The statement is not always true. The work done by the resultant force is equal to the change in kinetic energy only in the absence of other non-conservative forces, such as friction or air resistance. In the presence of such forces, the work-energy theorem may not hold, and the work done by the resultant force may not equal the change in kinetic energy.

an apple in a tree has a gravitational potential energy of 175J and a mass of 0.36g . how high from the ground is the apple

Answers

Final answer:

The height of the apple from the ground can be calculated using the formula for gravitational potential energy. Given the apple's mass and its potential energy, we find that the apple is approximately 5000 meters from the ground.

Explanation:

The gravitational potential energy of an object can be calculated using the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s² on Earth), and h is the height of the object from the ground. In this case, the apple's gravitational potential energy is given as 175J, its mass is 0.36g (or 0.00036 kg when converted.)

To find the apple's height from the ground, you need to rearrange the formula to solve for h: h = PE / (m * g). Substituting the given values in the formula, h = 175 J / (0.00036 kg * 9.8 m/s²), you get approximately h = 5000 meters.

Learn more about Gravitational Potential Energy here:

brainly.com/question/23134321

#SPJ12

Each step in any energy conversion process will _____. gain energy create energy dissipate energy destroy energy

Answers

The correct answer is to dissipate energy. Each step in any energy conversion process will dissipate energy. The energy conversion is the process in which a form of energy is being converted into a new or another form of energy.

The correct answer to the question is : Energy dissipate.

EXPLANATION:

Before coming into any conclusion, first we have to understand law of conservation of energy.

As per law of conservation of energy, energy can neither be created nor be destroyed. It can only change from one form to another form, and the total energy of the universe is always constant.

As per the question, there is energy conversion. One form of any energy may be converted into various types of energy. One particular type of energy is not obtained always.

Hence, the correct answer to the question is energy is dissipated during energy conversion.

Which universal force acts on protons and neutrons in an atom's nucleus?

Answers

The strong nuclear force

An electron travels with speed 6.0 106m/s between the two parallel charged plates shown in the figure. The plates are separated by 1.0 cm and are charged by a200 V battery.What magnetic field strength will allow the electron to pass between the plates without being deflected?

Answers

The magnetic field strength will allow the electron to pass between the plates without being deflected is 0.0033 T.

Electric field strength

The electric field strength of the electron is calculated as follows;

E = V/d

E = 200/(0.01)

E = 20,000 V/m

Magnetic field strength

The magnetic field strength is related to electric field in the following formula;

qvB = qE

vB = E

B = E/v

B = (20,000)/(6 x 10⁶)

B = 0.0033 T

Thus, the magnetic field strength will allow the electron to pass between the plates without being deflected is 0.0033 T.

Learn more about magnetic field here: brainly.com/question/7802337

Answer:

3.3 mT

Explanation:

First of all, we need to find the strength of the electric field between the two parallel plates.

We have:

$\Delta V=200 V$ (potential difference between the two plates)

$d=1.0 cm=0.01 m$ (distance between the plates)

So, the electric field is given by

$E=(\Delta V)/(d)=(200 V)/(0.01 m)=2\cdot 10^4 V/m$

Now we want the electron to pass between the plates without being deflected; this means that the electric force and the magnetic force on the electron must be equal:

$F_E = F_B\nqE=qvB$

where

q is the electron charge

E is the electric field strength

v is the electron's speed

B is the magnetic field strength

In this case, we know the speed of the electron: $v=6.0\cdot 10^6 m/s$ , so we can solve the formula to find B, the magnetic field strength:

$B=(E)/(v)=(2\cdot 10^4 V/m)/(6.0\cdot 10^6 m/s)=0.0033 T=3.3 mT$

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