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Leona [35]
3 years ago
14

Anyone who is willing to help me do some 8th grade science questionsNO LINKS

Physics
1 answer:
NISA [10]3 years ago
3 0

Answer:

what are they ill have a look

Explanation:

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Saved While paddling a canoe up the river, Jan saw some beautiful flowers along the river bank. The canoe is 35 yards lower than
Veronika [31]

To solve this problem we must use the trigonometric relations, in this case as we have the ramp and the height the concentric trigonometric property to the sin\theta will allow us to find the angle.

The sine of angle A, is defined as

Sin A = \frac{BC}{AC}

Sin \theta = \frac{35}{225}

Sin \theta = 8.9\°

Therefore the angle of elevation is 8.9°

6 0
4 years ago
Two horizontal curves on a bobsled run are banked at the same angle, but one has twice the radius of the other. The safe speed (
konstantin123 [22]

Answer:

Answer:

safe speed for the larger radius track u= √2 v

Explanation:

The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.

Also given that r_1= smaller radius

r_2= larger radius curve

r_2= 2r_1..............i

let u be the speed of larger radius curve

now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F=

r

1

mv

2

=

r

2

mu

2

................ii

form i and ii we can write

v^2= \frac{1}{2} u^2v

2

=

2

1

u

2

⇒u= √2 v

therefore, safe speed for the larger radius track u= √2 v

4 0
3 years ago
Students repeat the experiment but replace block X and block Y with block W and block Z , as shown in Figure 3. Block W and bloc
Lena [83]
The block Z would be seen in figure 10 when 4 strident turn around
8 0
3 years ago
A particle with charge q and momentum p, initially moving along the x-axis, enters a region where a uniform magnetic field* B=(B
VMariaS [17]

Answer:

Magnitude of momentum = q × B0 × [d^2 + 2L^2] / 2d.

Explanation:

So, from the question, we are given that the charge = q, the momentum = p.

=> From the question We are also given that, "initially, there is movement along the x-axis which then enters a region where a uniform magnetic field* B = (B0)(k) which then extends over a width x = L, the distance = d in the +y direction as it traverses the field."

Momentum,P = mass × Velocity, v -----(1).

We know that for a free particle the magnetic field is equal to the centrepetal force. Thus, we have the magnetic field = mass,.m × (velocity,v)^2 / radius, r.

Radius,r = P × v / B0 -----------------------------(2).

Centrepetal force = q × B0 × v. ----------(3).

(If X = L and distance = d)Therefore, the radius after solving binomially, radius = (d^2 + 2 L^2) / 2d.

Equating Equation (2) and (3) gives;

P = B0 × q × r.

Hence, the Magnitude of momentum = q × B0 × [d^2 + 2L^2] / 2d.

4 0
3 years ago
Convert 365 years to days. Using one step conversion. :) Please help w this
nikitadnepr [17]

Answer:

133225

Explanation:

6 0
3 years ago
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