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neonofarm [45]
2 years ago
15

Calculate the net force exerted on a box.

Physics
1 answer:
Pachacha [2.7K]2 years ago
4 0

Answer:

35 N to the left

Explanation:

Do 65 minus 30, and you get 35 N to the left

Because force is a vector quantity, you have to mention both magnitude and direction in your answer.

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Match the boundary with its characteristic
kondor19780726 [428]
<span>Matching the boundary with its characteristics 1. Convergent - C. Compression 2. Divergent - B. Along ocean ridges 3. Transform - A. Along strike-slip faults The compression that occur in the convergent boundary causes the reverse fault in the earth crust. So in the divergent boundary two crust plates move apart causing a normal fault along the ocean ridges. The faults in the transform boundary happens at the place where plates slide laterally.</span>
7 0
4 years ago
Read 2 more answers
what is the period of a sound wave whose wavelength is 20.0m? use values from the book and show all of your work
Lera25 [3.4K]
The wavelength of a sound wave is related to its frequency by the relationship:
f= \frac{v}{\lambda}
where
f is the frequency
v is the speed of the wave
\lambda is the wavelength

The wave in our problem has wavelength of \lambda=20.0 m and speed of v=343 m/s (this is the speed of sound in air), therefore its frequency is
f= \frac{343 m/s}{20.0 m}=17.15 Hz

And the period of the wave is equal to the reciprocal of its frequency:
T= \frac{1}{f}= \frac{1}{17.15 Hz}=0.058 s
5 0
4 years ago
Describe a situation in which you exert a force on something and it does not move. Identify the action force and the reaction fo
goldfiish [28.3K]

Answer:

Please find the answer in the explanation.

Explanation:

To describe a situation in which you exert a force on something and it does not move, you need to Identify the action force and the reaction force, the relative size of the forces, and the objects they act on.

The magnitude of the static friction between the object and the ground is larger than the magnitude of the force applied.

The object will not move if the magnitude of the static friction is greater than the magnitude of the force applied.

The action force is the force applied while the reaction force is equal to the frictional force between the object and the ground.

3 0
3 years ago
If you hear thunder 5 seconds after you see a lightning bolt how far is the storm
NikAS [45]
I think the answer is 3 miles because its storming now where I live

4 0
3 years ago
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A 40.0 kg box is placed on a 2.00 m tall shelf. If the box falls off the shelf, what is its kinetic energy as it strikes the gro
RUDIKE [14]
M = 40 Kg , g=9.8 m/s² , h = 2 m

PE = m g h

PE = (40) (9.8) (2)

PE = 784 J

KE = PE

½m v² = m g h

½ v² = g h

½ v² = (9.8) (2)

½ v² = 19.6

v² = 19.6×2

v² = 39.2

V = √39.2

V = 6.26 m/s

KE = ½mv²

KE = ½(40) (6.26)²

KE =783.8 J
6 0
3 years ago
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