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valkas [14]
3 years ago
10

Geologists have divided rocks into three different categories based on ______

Physics
1 answer:
luda_lava [24]3 years ago
3 0
How they are formed
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A dolphin swims 1.85 km/h how far has the dolphin traveled after 0.60 h
user100 [1]

Answer:

1.11 km

Explanation:

Distance = rate × time

d = 1.85 km/h × 0.60 h

d = 1.11 km

6 0
3 years ago
a ball is thrown straight up it passes a 2.00 m high window 7.5 meters off the ground on its path up it takes 1.3 s to go past t
Svet_ta [14]
Let's say the velocity at the bottom of the window was "v."
s = v*t + ½at²
2 m = v * 1.3s - 4.9m/s² * (1.3s)² = v * 1.3s - 8.3 m
v = 10.3m / 1.3s = 7.9 m/s

Then the initial speed was
V = √(v² + 2as) = √(7.9m/s² + 2 * 9.8m/s² * 7.5m) = 14 m/s ◄ initial velocity
(after rounding to 2 digits from 14.5 m/s).
8 0
3 years ago
A (nonconstant) harmonic function takes its maximum value and its minimum value
AURORKA [14]

Answer:

Explanation:

Consider that F (any function) <0 .

u(x,y) is a coontinuous function in the closed interval or region R.

Let us consider a point (p,q) that is inside the region and it is a maximum point.

Then it should be must

uxx (p,q) <0 where uxx means double differentiation

and uy(p,q) >0

Since ux(p,q) = 0 = uy(p,q) where ux and uy means single differentiation with respect to x and y respectively.

Say, Maximum limits of the region is T

therefore q<T

then uy (p,q) = 0 if q<T

if q = T then

point (p,q) = (p,T) will be on the boundary of R then we claim that

uy(p,q) >0

Similarly for the minimum also it will work

3 0
3 years ago
Sound is repeated near hills....<br>Why??? ​
madam [21]

Answer:

because there is many places for it to bounce of of creating another soundwave

5 0
3 years ago
A resistance training system that is a variation of circuit training and that alternates upper body and lower body exercises thr
dlinn [17]

Answer:

Peripheral heart action.

Explanation:

The Peripheral heart action purpose is to keep the blood circulation throughout the body at time of workout.

This is specially proceed through the small central muscles which goes around your heart.

After that it is followed by the peripheral muscles which lies in the arms, legs and in the abs part.

6 0
4 years ago
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