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4 years ago

A 5 kg object is accelerating at 3 m/s² while being pulled. What is the magnitude of the force causing this acceleration?

Physics

1 answer:

Lera25 [3.4K]4 years ago

8 0

Answer:

The answer is the option D, Force = 15 N

Explanation:

In the image attached, we can see a free body diagram and applying the second law of Newton we have to find the force F in the equation given.

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Technician A says that if the yellow warning lamp is illuminated indicating a fault in the electronic brake control system, you

Vesna [10]

Answer: C) Both A and B

Explanation:

The ABS system is disabled when the ABS yellow warning lamp is on. And when the warning lamp is on the base brake system will work normally but without ABS function

And if the yellow warning lamp is illuminated indicating a fault in the electronic brake control system, you should retrieve the diagnostic trouble codes and follow the procedure listed in the service information. Once the fault has been corrected, clear the diagnostic code and verify that it does not reset

6 0

4 years ago

When using a different calorimeter, and mixing 50 ml of hot water at 65 degrees c with 60 ml of water in the calorimete

Paha777 [63]

The specific heat capacity of the calorimeter used in mixing the water is determined as 21.87 J/g⁰C.

<h3>Conseervation of energy</h3>

The heat capacity of the calirometer is determined by applying the principle of conservation of energy.

Heat lost by the hot water = Heat gained by the calirometer

$Q _w = Q_c\\\\M_w C_w\Delta \theta _w = M_c C_c\Delta \theta _c$

where;

M is mass

mass = density x volume = ρV

Density of water = 1 g/ml

Mass of hot water = 1 x (50) = 50 g

Mass of water in calorimeter = 1 x (60) = 60 g

<h3>Equilibrium temperature</h3>

$\Delta T_c = 5.5\\\\T - 25 = 5.5\\\\T = 30.5 \ ^0C$

<h3>Specific heat capacity of the calirometer</h3>

$50 \times 4.184 \times (65 - 30.5) = 60 \times C_c \times (30.5 - 25)\\\\7217.4 = 330C_c\\\\C_c = \frac{7217.4}{330} \\\\C_c = 21.87 \ J/g^0C$

Thus, the specific heat capacity of the calorimeter used in mixing the water is determined as 21.87 J/g⁰C.

The complete question is below

When using a different calorimeter, and mixing 50 ml of hot water at

65 degrees C with 60 ml of water in the calorimeter at 25 degrees C, the temperature of the calorimeter increased by 5.5 degrees C.

a. Calculate the heat capacity of this calorimeter?

Learn more about heat capacity here: brainly.com/question/16559442

5 0

2 years ago

At the top of a building you and a friend throw two identical baseballs exactly horizontal away from the building releasing the

just olya [345]

Answer:

Option C

your friends ball hits the ground at the same time as yours, and goes twice as far

Explanation:

The vertical speed is the same but the horizontal speed of your friend is twice yours. This implies the time to hit the ground is the same but after hitting the ground since the horizontal speed of your friend is twice, then the ball moves a horizontal diatance twice yours. Therefore, option C is correct.

8 0

4 years ago

7) T F If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting farther from the pivot must

saul85 [17]

Answer:

False

Explanation:

The torque exerted by a force is given by:

$\tau=Fd sin \theta$

where

F is the magnitude of the force

d is the distance between the point of application of the force and the pivot

$\theta$ is the angle between the directions of F and d

We see that the magnitude of the torque depends on 3 factors. In this problem, we have 2 forces of equal magnitude (so, equal F). Moreover, one of the forces (let's call it force 1) acts farther from the pivot than force 2, so we have

$d_1 > d_2$

However, this does not mean that force 1 produces a greater torque. In fact, it also depends on the angle at which the force is applied. For instance, if the first force is applied parallel to d, then we have

$\theta_1 =0\\sin \theta=0$

and the torque produced by this force would be zero.

So, the statement is false.

4 0

3 years ago

The helium used to fill birthday balloons doesn’t come out of the air, but from. out of the ground. Some of the gas might escape

Vladimir79 [104]

Well , i think helium gas is present in the Earth Crust because metals found in the crust have nuclei that decay into another elements
One of this element that formed is Helium

hope this helps

3 0

4 years ago

Read 2 more answers