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Marysya12 [62]
3 years ago
12

Your skeleton. It is there for support, protection, and movement. But you could not move your bones without the help of your ___

___________ system. A) digestive B) gland C) immune D) muscular\
Physics
2 answers:
lana66690 [7]3 years ago
7 0
I believe the answer is D.) the muscular system
Tamiku [17]3 years ago
4 0
The answer would be 
D) muscular
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A crane lifts a 100 kg concrete block to a vertical height of 25 m. Calculate
Nana76 [90]

Answer:

Solon,

total mass (kg)= 100kg

height (h)= 25m

acceleration due to gravity = 9.8m/s²

so,

work done =m*g*h

= 100*9.8*25

= 24,500 joule

5 0
3 years ago
Write the function y(x, t) that describes this pulse if it is traveling in the positive x-direction with a speed of 2.10 m/s. (U
Marrrta [24]

Answer:

The function is missing in the question. The function of the transverse pulse in the wire is given by $y=\frac{6}{x^2 +3}$  

Explanation:

A transverse wave can be defined as the wave whose direction of displacement is always perpendicular to the direction of propagation. For example, surface wave at water bodies. While a pulse can be defined as a sudden change in a constant quantity such as a pulse of the radiation or current.

Let the wire of infinite length in both the directions and also the magnitude of deflection of wire be in the same shape except the point of maximum deflection to move along the wire.

Thus the equation of the pulse moving the in the positive x-direction moving at the speed of 2.10 m/s is

$y=\frac{6}{(x-2.10)^2 +3}$.

8 0
3 years ago
If sonic the hedgehog runs 40 meters in 5 seconds, what is his speed?
hoa [83]

Answer:

8m/s

Explanation:

Sonic can go WAAAAAAAAAAAAY faster, but he must be taking a jog. All jokes aside, Divide 40 by 5. You get 8 meters per second or 17.9 mph.

6 0
4 years ago
What other system/invention can you think of that uses Newton's Third Law of Motion in this way?
tatiyna

Answer: a simple example of this would be the strong man game that can be found at most theme parks and fairs

Explanation: in the game you use a hammer to strike a buzzer or bell this causes the game to react by shooting up a small object giving you Newton’s third law your action had an equal or opposite effect on the bell and object that shoots up

5 0
3 years ago
A metal rod with a length of 22.0cm lies in the xy-plane and makes an angle of 37.9 degrees with the positive x-axis and an angl
Shtirlitz [24]

Answer:

Induced emf in the rod is, \epsilon=0.08262\ V

Explanation:

Given that,

Length of the rod, L = 22 cm = 0.22 m

Angle with x axis is 37.9 degrees with the positive x-axis and an angle of 52.1 degrees with the positive y-axis.

L=0.22(cos37.9\ i)+0.22(sin37.9\ j)

L=(0.173\ i+0.135\ j)\ m

Velocity of the rod, v = 6.8i m/s

Magnetic field, B=0.170i-0.24j-0.09k

The formula for the emf induced in the rod is given by :

\epsilon=(v\times B){\cdot}L

\epsilon=(6.8i\times (0.170i-0.24j-0.09k)){\cdot} (0.173\ i+0.135\ j)      

\epsilon=(0.612j-1.632k){\cdot}(0.173i+0.135j)      

\epsilon=0.08262\ V

So, the magnitude of the emf induced in the rod is 0.08262 volts. Hence, this is the required solution.                                      

8 0
3 years ago
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