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3 years ago

This force is involves the attraction between charged particles

Physics

2 answers:

Gelneren [198K]3 years ago

8 0

Answer:

The correct answer is Strong Nuclear

Explanation:

In nuclear physics and particle physics, the strong interaction is the mechanism responsible for the strong nuclear force, and is one of the four known fundamental interactions, with the others being electromagnetism, the weak interaction, and gravitation.

Nikolay [14]3 years ago

6 0

That's the 'electrostatic' force.

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What must the minimum tension of a single?

frozen [14]

Connexus Physics pre-ap semester A final exam, all correct answers. And y’all better be freaking grateful, because it took a long time to type all this out.

1) In the steps of the scientific method…
A. Interpreting results

2) The radius of the Earth is…
B. 6.37 x 10^3 km

3) Which of the following equations best describes…
D. y = 1/2x

4) In the graph, what is the correct description…
C. Negative position

5) The motion of a ball on an inclined plane is described…
C. vi

6) Acceleration due to gravity is also called
C. free-fall acceleration

7) Which of the following is a physical quantity…
A. vector

8) In a coordinate system, a vector is…
A. Cos (theta)

9) Which of the following is an example of projectile motion?
B. a thrown baseball

10) A newton is equivalent to which…
A. kg * m/s^2

11) In the free-body diagram shown below, which of the following…
C. 4050 N

12) A net force of 6.8 N accelerates a 31 kg scooter…
A. 0.22 m/s^2

13) A change in the gravitational force acting…
C. Weight

14) A passenger on a bus moving east sees a man standing on a curb…
C. move west at a speed that is equal to the bus’s speed.

15) In which of the following scenarios is no net work done?
B. A car travels at a constant speed on a flat road.

16) What is the kinetic energy of a 0.135 kg baseball thrown at 40.0 m/s?
C. 108 J

17) Which of the following refers to the sum of kinetic energy…
D. mechanical energy

18) Which of the following are not units of power?
B. J

19) Which of the following…can be used to…calculate…change in…momentum?
D. (delta)p = F (delta) t

20) Two skaters stand facing…
B. their momenta are equal but opposite.

21) In an inelastic collision…
D. the momentum of one object will increase by the amount that the momentum of the other object decreases.

22) When an object is moving with uniform circular motion…tangential speed
C. is constant

23) Which units would be the most appropriate to use to…
A. newtons

24) How would the speed of Earth’s orbit around the sun change…
A. The speed would not change

25) A girl pushes a box that has a weight of 450 N up an incline…force of 150 N along…
B. 3.0

26) According to the law of conservation of mechanical energy,
C. Total energy must remain the same

27) The potential energy of a 60 kg man…balcony 43 meters…
A. 25000 J

28) If two small beakers of water, one at 70C and one at 80C…
C. The final temperature is between 70C and 80C

29) Why does sandpaper get hot when it is rubbed against rusty metal?
C. Friction between the sandpaper and metal…

30) Which of the following describes a substance in which the temperature and pressure…
D. substance undergoing a change of state

31) An ideal gas system is maintained at a constant volume of 4 L. If pressure is constant…
A. 0 J

32) Which of the following is a thermodynamic process in which a system…
C. a cyclic process

33) When a drop of ink mixes with water…
A The system’s entropy increases, and the total entropy of the universe increases.

34) A mass-spring system can oscillate…
D. elastic potential

35) If a semi-truck decrease its speed from 10 m/s to 5 m/s...
D. ¼ its old kinetic energy

36) A boy releases a small 1 kg toy truck from rest down a 5 meter high hill…
B. 50 J

37) A car accelerates uniformly from 10 m/s to 20 m/s in 4.2 seconds…
A. 2.4 m/s^2

38) What must the minimum tension of a single vertical wire be to support a 1.5 kg picture?
A. 15 N

39) Why does it seem harder to start sliding a couch across a carpeted floor than…
C. The opposing force of friction is greater when an object starts from rest…

40) An elevator weighing 2.00 c 10^5 N is supported by a steel cable…
Fw = mass * gravitational acceleration
2*10^5 = mass * 9.8
mass of the elevator = 20.4*10^3 kg

Fnet = Tension – Fw
mass * acceleration = Tension – 2*10^5
20.4*10^3 * 3 = Tension – 2*10^5
61200 = Tension – 2*10^5
Tension = (61200) + (2*10^5)
Tension = 2.61 * 10^5 newton

41) A bullet with a mass of 6.00 g is fired through a 1.25 kg block of wood on a frictionless surface.
0.006(896) + 0 = 0.006(435) + 1.25(V)
5.376 + 0 = 2.61 + 1.25(V)
5.376 = 2.61 + 1.25(V)
2.766 = 1.25(V)
V = 2.21 m/s

42) Find the final equilibrium temperature when 10.0 g of milk at 10.0C is added to 1.60 x 10^2 g of coffee with a temperature of 90.0C.
Heat lost = heat gained
X = equilibrium temperature
Heat lost = 160(90-x)
Heat gained = 10(x-10)
14400 – 160x = 10x -100
170x = 14500
X = 14500/170
X = 85.25 degrees

6 0

3 years ago

T/-15=-3. what is t?

sweet-ann [11.9K]

Answer:

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2 years ago

Seema knows the mass of basketball. What other information is needed to find the balls potential energy

Lelu [443]

Answer: The height (position) of the ball and the acceleration due gravity

Explanation:

In this case we are taking about gravitational potential energy, which is the energy a body or object possesses, due to its position in a gravitational field. In this sense, this energy depends on the relative height of an object with respect to some point of reference and associated with the gravitational force.

In the case of the Earth, in which the gravitational field is considered constant, the gravitational potential energy $U$ will be:

$U=mgh$

Where:

$m$ is the mass of the ball

$g=9.8 m/s^{2}$ is the acceleration due gravity (assuming the ball is on the Earth surface)

$h$ is the height (position) of the ball respect to a given point

Note the value of the gravitational potential energy is directly proportional to the height.

8 0

4 years ago

Read 2 more answers

A machine has a mechanical advantage of 5. if 300 newtons of input force is used to produce 3,000 newton meters of work what is

Arte-miy333 [17]

F(in) x d(in)= F(out)x d(out)
A machine has a mechanical advantage of 5.
F(out )= 5xF(in)300 newtons

F(in) = 300 N
F(out)= 5xF(in) = 5x300 N
= 1500 N

Work in = Work out = 3000 N x m3000
N x m = F_in x d_ind_in = 3000 Nxm / F_in = 3000 N x m / 300 N = 10 m3000 Nxm = F_out x d_out d_out = 3000 Nx m / F_out = 3000 N x m / 1500 N = 2 m

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4 years ago

Write a hypothesis about the effect of the wavelength on the diffraction angle. Use the "if . . . then . . . because . . ." form

adell [148]

A) Wavelength is the distance between two successful crests or troughs in a transverse wave or the distance between two successful compressions or rarefactions in a longitudinal wave. if the wavelength of a wave is long then the wave will diffracts more compared to a wave with a shorter wavelength because the size of the wavelength is proportional to the angle of diffraction. Such that if the gap is larger than the wavelength then the wave passes through the gap and does not spread much on the other side, while when the gap size is equal to the wavelength, maximum diffraction occurs and the waves spread greatly out.

b) Diffraction is a phenomenon that occurs when a wave encounters an obstacles or a slit. It is referred to as the bending of light around corners of an obstacles or aperture into the region of geometrical shadow of the obstacle. It is caused by one wave of light is shifted by the diffracting object which will in turn cause the wave to have interference with itself. (either constructive or destructive)

3 0

4 years ago

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