A negative acceleration means that the speed of the object decreases. Explain why this statement can be incorrect?

Answers

Answer 1

Answer: This statement can be incorrect because speed isn't velocity. While the speed is constantly increases, velocity is decreasing. It doesn't depend on direction and this statement could be true only for a velocity.

Related Questions

If a car can go from 0.0 to 60.0 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50.0 mi/hr?
A car battery with a 12 V emf and an internal resistance of 0.11 Ω is being charged with a current of 56 A. What are (a) the potential difference across the terminals, (b) the rate Pr of energy dissipation inside the battery and (c) the rate Pemf of energy conversion to chemical form? When the battery is used to supply 56 A to the starter motor, what are (d) V and (e) Pr
An electron traveling with a speed of 2.50 × 10^6 meters per second collides with a photonhaving a frequency of 1.00 × 10^16 hertz. After the collision, the photon has 3.18 × 10^−18 joule of energy. Calculate the original kinetic energy of the electron. [Show all work, including the equation and substitution with units.]
The energy of motion is calledA. kinetic energy. B. potential energy. C. thermal energy. D. work.
When a motor is turned on, electrical energy is transformed to mechanical energy plus heat energy. TRUE or FALSE?

Yello light on a red object, the object appears what color ?

Answers

In order to understand what happens, let's consider for a moment why
it's called a "red object" to begin with. The reason it's called "red" is that
whenever the light shining on it contains any red light, the object absorbs
light of any other colors, and only red light remains to bounce off of it toward
your eyes. Since most light contains plenty of red ... such as sunlight or the
light from an electric bulb ... the object usually looks red when you see it.

In the rare event when the light illuminating it has no red in it ... such as the
situation you describe in your question ... no light remains to bounce off of
the object to your eyes, since the object absorbs any light that's not red.

When that happens, the object appears black.

The formula for degrees Celsius is: C = 5/9 (F − 32), where F stands for degrees Fahrenheit.Part 1: Solve the equation for F and show all steps.
Part 2: Determine how many degrees Fahrenheit 20 degrees Celsius is.

Answers

C = 5/9 (F-32)Part 1. C=5F/9-(5/9)325F/9=C+160/9F=(9/5)C+(9/5)(160/9)F=(9/5)C+32for part 2:
F=(9/5)20+32F=36+32=68 degrees Fahrenheit

Amusement parks are a great place to see Newton's laws of motion in action. Choose your favorite ride and describe the parts of the ride that illustrate each of Newton's laws of motion. You are only required to give a written description; however, if you would like, you may draw and label a picture in addition to the paragraph explanation. Please be sure to look at the rubric to see exactly what you are expected to include!

Answers

Since it's against good conscience, I will not directly tell you how Newtonian mechanics relates to one's favorite amusement park ride, but I can still assist. Think about the very last ride you were on. There are always Newtonian forces acting on you, but even more-so at the amusement park. Anything dealing with the 'forces' of gravity or centrifugal force will do, and these are seen throughout just about every ride fathomable in a park.

The picture above shows 3 sets of balloons, all with a particular charge. Which of the picture(s) is true? Explain. Then explain why the other 2 pictures are incorrect. Make sure to explain all 3 sets.

Answers

Among all of the others Picture 3 is correct.

We know, Like charges repel each other whereas unlike charges attract each other, In picture 3 they are like charges (both are positive) so, we can repulsion hence, picture is correct!

In picture 1, they are unlike charges, & showing repulsion which is wrong, same In picture 2, they are like charges & showing attraction so they are wrong as well

Hope this helps!

Which of the following best explains why clear-cutting forests is more destructive than selectively cutting down trees in forests?a. Clear-cutting eliminates all trees leaving none behind to maintain soil fertility or house native animals.
b. Clear-cutting places the land at greater risk for wildfires.
c. Clear-cutting makes land more attractive for human development.
d. Clear-cutting causes less soil erosion than selective cutting.

Answers

The answer is a. cutting trees reduce fertility and eliminates animal habitats. Plant material is essential in maintaing soil fertility. Leaves and branches decay to form humus; removing trees decreases the organic content. Trees are home to many animal species, including birds, insects and amphibians. Some trees are even support or home to other plants. Examples include epiphytes in the rainforest ecosystem. Clear cutting forests disrupts whole communities and ecosystems.

A series circuit has a lamp, a battery, an ammeter and a switch. What would the ammeter read

Answers

When the switch is open, the ammeter reads zero. When the switch is closed, the meter reads a number that's (battery voltage) divided by (resistance of the lamp), and the lamp glows.

the ammeter would read the current flowing in the circuit

Other Questions

The ability of an apple to change color when exposed to air is chemical or physical

The body can get water from milk juice and vegetables

How much kinetic energy does a 7.2-kg dog need to make a vertical jump of 1.2 m? the acceleration due to gravity is 9.8m / s^2

Which of these discoveries is generally attributed to newtonA).The force of gravity acts between any two objectsB). The earth is roundC). Planets Move In circlesD). The orbit of mars is an ellipse