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erma4kov [3.2K]
3 years ago
8

Can u find the . in this?

Physics
2 answers:
nikklg [1K]3 years ago
4 0

Answer:

Yeah it's right there from the one next to the exclamation point

Yanka [14]3 years ago
4 0

Answer:

its not there

Explanation:

its literally not there

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What is the elevation of Y and Z? Y=3250, Z=2950 Y=3200, Z=2900 Y=3250, Z=2900 Y=3000, Z=2850
Monica [59]

Answer:

The answer is "Y=3250, Z=2900".

Explanation:

Please find the image file of the question in the attached file.  

The heights are included in the shape of the contour maps in topographic maps. Its curves with far more intensity and emphasis are known as indexed shapes. The outlines of the list, from which Y is also the one, are also the dark brown contours. This contour line reaches a height of 3250.

Its Z curve is now at a smaller contour of 2900 on the times gone of an elevation data.  It can be understood through gazing downriver, which refers to as the neutral zone that flies through the consecutive V-shaped texture arrangement. It is one of the ways to determine why contours reduce. Because the Y and Z increase separately to 3250 and 2900.

6 0
3 years ago
Please help! last test of the week, and i can have a long weekedn! Friday and Sun and Sat.
ludmilkaskok [199]

It must have a medium to travel through.

Happy to help. Marking me the brainliest would really be appreciated.

6 0
3 years ago
On a straight road (taken to be in the +x direction) you drive for an hour at 50 km per hour, then quickly speed up to 90 km per
dalvyx [7]

Answer:

a) 230 Km b) 76.7 km/h c) Please see below

Explanation:

a) If we can neglect the time while the driver accelerated, the movement can be divided in two parts, each of them at a constant speed:

x = x1 + x2  \\\\x1 = 50 km/h* 1hr = 50 km, \\x2 = 90 Km/h*2hr = 180 km\\

⇒ x = 50 km + 180 km = 230 km

b) The average x component of velocity, can be calculated applying the definition of average velocity, as follows:

vavg,x = \frac{xf-xo}{t-to}

If we choose t₀ = 0 and x₀ = 0, replacing xf and t by the values we have already found, we can find vavg,x as follows:

vavg,x =\frac{230 km}{3 hr} =76.7 km/h

c) The found value of  avg,x is not the same as the arithmetic average of the initial and final values of vx (70 Km/h) due to the time traveled at both velocities was not the same.

If the driver had droven half of the time (1.5 h) at 50 km/h and the other half at 90 km/h, total displacement would have been as follows:

x = 50 km/h*1.5 h + 90 km/h*1.5 hr = 210 km

Applying the definition of average velocity once more:

vavg,x =\frac{210 km}{3 hr} =70 km/h

which is the same as the arithmetic average of the initial and final values of vₓ.

7 0
3 years ago
Which description correctly summarizes how an electric motor causes an axle to turn?
alexira [117]

Answer:

B on edge

Explanation:

the piles of the magnetic field generated around the armature are attracted to the opposite poles of the permanent magnent. As the opposite poles align, the commutator reverses the current direction so like poles are aligned and the armature continues to spin

6 0
3 years ago
Steel is very stiff, and the Young's modulus for steel is unusually large, 2.0×1011 N/m2. A cube of steel 25 cm on a side suppor
TEA [102]

Answer:

Force (normal) = 833.85 N Compression = 1.67 x 10⁻⁸ m

Explanation:

Given data Young's Modulus (Y) = 2 x 10¹¹ N/m², Length of one side of cube = 25 cm = 0.25 m, mass of load = 85 kg

Normal force is the force exerted upon an object that is in contact with another stable object. This force would be applied by the surface onto the object in the same vector and is used to keep the object stable while it rests on a surface.

We know from Newton's Second Law that

F = ma where m is the mass and a is the acceleration (<em>in this case due to gravity</em>) hence, the normal opposing force to the load applied by the surface would be equal to the force applied on the surface by the weight of the load on the surface, So

F (normal) = M (load) x a = 85 x 9.81 = 833.85 N

Compression is the change in length of an object by the exertion of force upon it. Using the Young's Modulus formula we can find this change in the cube of steel. The Young's Modulus is given by

Y = (F/A)/(ΔL/L), where Y is the Young's Modulus, F is the Force being applied on the object, A is the cross sectional area on which the said force is applied, ΔL is the change in length due to said force being applied and L is the original Length of the side of the cross sectional area.

Solving this for ΔL, we can re- arrange the equation

ΔL = (F x L)/(Y x A) since area of square is L x L we can simplify the equation to get

ΔL = (F)/(Y x L), substitute the values

ΔL = (833.85)/(2 x 10¹¹ x 0.25) = 1.67 x 10⁻⁸m

6 0
4 years ago
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