A 30.0 kg object rests on a flat, frictionless surface. A rope lifts up on the object with a force of 309 N. What is the acceleration of the object?
Answers
total force = ma
9 = 30a
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How do elements change as you move down a column in a periodic table? a.the atomic radius decreases b.the number of protons decreases c.the atomic mass decreases d.the electronegativity decreases
Two dogs pull on a toy. One pulls with a force of 10N, the other with a force of 15N. In what relative directions can the dogs act to give the toy the smallest acceleration?
Which statements accurately describe matter
Answers
Dsitance (in trillion km) = 9.46 trillion km * (10.5) = 99.33 trillion kilometers
Answer:99.33
Explanation:
Answers
The weight of a 2959.0-kg car that is moving at a speed of 21 m / s would be 28998.2 Newtons, here speed of the car is the redundant value that is not used to calculate the weight of the car.
What is gravity?
It can be defined as the force by which a body attracts another body toward its center as the result of the gravitational pull of one body and another.
As given in the problem, we have to determine the weight of a 2959.0-kg car that is moving at a speed of 21 m / s .
The weight of the car = mass of the car × acceleration due to gravity
= 2959 × 9.8
= 28998.2 Newtons
Thus, the weight of a 2959.0-kg car that is moving at a speed of 21 m / s would be 28998.2 Newtons.
To learn more about gravity here, refer to the link given below ;
#SPJ2
weight=mass*gravity
w=2959.0*10
w=29590N
A person is riding a bicycle at 4 m/s west and decreases her speed to 3 m/s.
A plane is flying south at 600 km/h and then flies directly upwards before returning to the airport.
A balloon is floating up into the air at 1 m/s.
A bus is traveling west at 2 m/s and then turns a corner.
Answers
Answer:
A balloon is floating up into the air at 1 m/s.
Explanation:
Velocity is the displacement divided by the time;
Velocity =
It is a vector quantity that has magnitude and direction.
The choice that shows a change in direction is a correct specification of velocity.
A balloon floating up into the air at 1m/s shows no directional change.
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.
Answers
The ozone layer absorbs most of the incoming ultraviolet rays radiation from the sun. The ozone layer is found at the second layer of the atmosphere, stratosphere.
Answers
Answer:
We conclude that it is a Bronsted-Lowry acid.
Explanation:
Hello! Let's solve this!
According to Bronsted-Lowry an acid is a chemical species that is capable of yielding protons and a Bronsted-Lowry base is a chemical species capable of accepting protons.
In this case we see that sulfuric acid (H2SO4) loses a proton to become HSO4.
We conclude that it is a Bronsted-Lowry acid.