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oksian1 [2.3K]
3 years ago
6

Complete the statement below with all that apply.

Physics
2 answers:
Gre4nikov [31]3 years ago
7 0

Answer: b the slope of a velocity vs. time graph

d. .a vector

Explanation: Acceleration is the rate of change of velocity with time. Slope of the graph of any quantity plotted against time gives the rate of change of that quantity with respect to time. In case of velocity, the slope gives the rate of change of velocity with time which is acceleration.

Acceleration is a vector quantity because it has both magnitude and direction. and is measured in ms^{-2}

The change in displacement divided by the change in time gives velocity. Velocity is measured in m/s.

lianna [129]3 years ago
3 0
Acceleration is the rate of change of velocity, and velocity is the change in displacement over the change in time so the answer would be A.
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A wave has a wavelength of 20 mm and a frequency of 5 Hz what is the speed?
yKpoI14uk [10]
The answer is 100mm/s. I hope this helps :)

7 0
3 years ago
Starting from rest, a particle that is confined to move along a straight line is accelerated at a rate of 5.0 m/s2. Which one of
Elanso [62]

Answer:

c) The slope is not constant and increases with increasing time.

Explanation:

The equation for the position of this particle (starting from rest is)

s = at^2/2 = 5t^2/2 = 2.5t^2

We can take derivative of this with respect to time t to get the equation of slope:

s' = (2.5t^2)' = 2*2.5t = 5t

As time t increase, the slope would increases with time as well.

6 0
3 years ago
Just this last one!!
Pepsi [2]

Answer:

47 \ \frac{m}{s}

Explanation:

s = displacement (m)

u = initial velocity (\frac{m}{s})

v = final velocity (\frac{m}{s})

a = acceleration (\frac{m}{s^{2} })

t = time (s)

s = 235

a = -4.7

v = 0

v² = u² + 2as

(0)² = u² + 2(-4.7)(235)

u² - 2209 = 0

u² = 2209

u = 47

4 0
2 years ago
Read 2 more answers
IM A plastic sphere floats in water with 50.0% of its volume submerged. This same sphere floats in glycerin with 40.0 \% of its
arsen [322]

Density of glycerin is 5/4 times water density.

Density of the sphere is 1/2 times water density.

<h3>How to find the density of sphere floats and glycerin?</h3>

Density is defined as the ratio of mass to volume, that is density is the amount of mass per unit of volume.

A substance's density exist defined as its mass per unit of volume. Density is most frequently represented by the symbol, however Latin letter D may also be utilized. If the mass or volume of an object is altered, the density of the thing may also change. Water, for example, has a specific density. An object will sink if its density exists greater than that of water; it will float if its density is lower.

Since a plastic sphere floats in water with 50% of its volume submerged.

So, the Density of the sphere = 1/2× water density

Since the same sphere floats in glycerin with 40% of its volume submerged.

So, the Density of the sphere = 4/100 × Glycerin density

= 2/5 × Glycerin density

Density of Glycerin = 5/2 of sphere density

Density of glycerin = 5/2 × 1/2 × water density

Density of glycerin = 5/4 × water density

To learn more about the volume of sphere floats refer to:

brainly.com/question/10827296

#SPJ4

6 0
1 year ago
Which model shows 4 electrons in the outer shell of the atom?
nasty-shy [4]
D.4
hope it helps have a great day!
8 0
3 years ago
Read 2 more answers
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