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dusya [7]
3 years ago
7

3. A tire swing is hanging from a tree. Diagram the forces acting on the swing.

Physics
2 answers:
ollegr [7]3 years ago
8 0
Rope, tire, and branch

kicyunya [14]3 years ago
7 0
Gravity and the string
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In the aftermath of an intense earthquake, the earth as a whole "rings" with a period of 54 minutes.
lawyer [7]

The frequency of the oscillation in hertz is calculated to be 0.00031 Hz.

The frequency of a wave is defined as the number of cycles completed per second while the period refers to the time taken to complete a cycle. The frequency is the inverse of period.

So;

Period(T) = 54 minutes or 3240 seconds

Frequency (f) = T-1 = 1/T = 1/3240 seconds = 0.00031 Hz

Learn more: brainly.com/question/14588679

6 0
2 years ago
What does an atom look like under an electron microscope?
ratelena [41]
If you look at a atom under a electron microscope you would use it
5 0
3 years ago
Transcranial magnetic stimulation (TMS) is a noninvasive method for studying brain function, and possibly for treatment as well.
lubasha [3.4K]

Answer:

525 V

Explanation:

A = Area = 1.75\times 10^{-2}\ m^2

\dfrac{dB}{dt} = Rate of change of magnetic field = 3\times 10^4\ T/s (assumed)

Induced electromotive force is given by

E=A\dfrac{dB}{dt}\\\Rightarrow E=1.75\times 10^{-2}\times 3\times 10^{4}\\\Rightarrow E=525\ V

The induced electromotive force is 525 V

3 0
3 years ago
A 900-kg car traveling east at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. What is
SVEN [57.7K]

Answer:

12.2 m/s

Explanation:

Initial momentum = final momentum

In the x direction:

(900 kg) (15.0 m/s) = (900 kg + 750 kg) vx

vx = 8.18 m/s

In the y direction:

(750 kg) (20.0 m/s) = (900 kg + 750 kg) vy

vy = 9.09

The magnitude of the velocity is therefore:

v = √(vx² + vy²)

v = 12.2 m/s

7 0
3 years ago
What is the mass of an object traveling at 20 m/s with a kinetic energy of 4000 J?<br>​
valentinak56 [21]

Answer:

20 kg

Explanation:

Kinetic energy=½*Mass * velocity²

4000= ½* m*20²

8000=400m

m=8000/400

m=20 kg

5 0
3 years ago
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