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3 years ago

An object accelerates 16.3 m/s2 when a force of 4.6 newtons is applied to it, what is the object in grams

Physics

1 answer:

stealth61 [152]3 years ago

6 0

We have no idea WHAT the object is.

But if the 4.6 N is the ONLY force acting on it (including friction), then its mass is 282.2 grams.

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two protons are released from rest when they are 0.750 nm apart (a)what is the maximum speed they will reach ? when does this sp

Keith_Richards [23]

Answer:

And so calculating we get the maximum speed at each proton will reach To be 1.36 Times 10 to the four m the second

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2 years ago

By how much will the velocity of a vehicle change if it accelerates at 10 m/s/s for a period of 10 seconds

pishuonlain [190]

Answer:

Explanation:

we know that the time rate of change of velocity is called acceleration mathmetically;

a=Δv/Δt

Δv=a*Δt

a=10 m/s²

t=10 sec

Δv=10*10=100 m/s

7 0

4 years ago

A car moves at a constant velocity of 30 m/s and has 3.6 × 105 J of kinetic energy. The driver applies the brakes and the car st

LekaFEV [45]

The force needed to the stop the car is -3.79 N.

Explanation:

The force required to stop the car should have equal magnitude as the force required to move the car but in opposite direction. This is in accordance with the Newton's third law of motion. Since, in the present problem, we know the kinetic energy and velocity of the moving car, we can determine the mass of the car from these two parameters.

So, here v = 30 m/s and k.E. = 3.6 × 10⁵ J, then mass will be

$K.E = \frac{1}{2} * m*v^{2} \\\\m = \frac{2*KE}{v^{2} } = \frac{2*3.6*10^{5} }{30*30}=800 kg$

Now, we know that the work done by the brake to stop the car will be equal to the product of force to stop the car with the distance travelled by the car on applying the brake.Here it is said that the car travels 95 m after the brake has been applied. So with the help of work energy theorem,

Work done = Final kinetic energy - Initial kinetic energy

Work done = Force × Displacement

So, Force × Displacement = Final kinetic energy - Initial Kinetic energy.

$Force * 95 = 0-3.6*10^{5}\\ \\Force =\frac{-3.6*10^{5} }{95}=-3.79 N$

Thus, the force needed to the stop the car is -3.79 N.

5 0

3 years ago

7.According to the periodic table, how many total particles are there in the nucleus of a Titanium, Ti, atom?

FromTheMoon [43]

Answer:

there are 22 massive, positively charged, fundamental particles in the element's nucleus. Given this, the element is unquestionably titanium.

3 0

3 years ago

(Fiqure 1) shows the velocity-versus-time graphs for two objects A and B the motion of the ohiecds Zach savs The aranh could rep

olchik [2.2K]

Answer:

a.neither of them is correct

b. Zach's statement is not correct, since do not know where the objects started and can't be sure if they pass each other.

c. Victoria's statement is not correct as the objects have the opposite accelerations, however free-falling objects should have the same downward acceleration

Explanation:

Fiqure 1) shows the velocity-versus-time graphs for two objects A and B the motion of the ohiecds Zach savs The aranh could represent two cars Zach traveling in opposite directions that pass each other." Victoria says, "No, I think they could be R cally from a bridge, rock A is thrown upward Victoria downward

ans :neither of them is correct

Previous Answers Submit VCorrect Figure 1 of 1

Part B V,

Why is Zach's statement wrong? Check all that apply

. A Zach's statement is not correct, since the objects move in the same direction for some time interval.

Ans: Zach's statement is not correct, since do not know where the objects started and can't be sure if they pass each other.

Previous Answers Request Answer Submit x Incorrect;

Try Again

Part C

Why is Victoria's statement wrong? Check all that apply Victoria's statement is not correct as the objects both should have been thrown either upward or downward

Answer:. Victoria's statement is not correct as the objects have the opposite accelerations, however free-falling objects should have the same downward acceleration gGraph

My explanation further from the graph will be that there are opposite bodies, one is accelerating with time , why the other is decelerating with time.

6 0

4 years ago