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3 years ago

The SI unit of average spped and velocity.

1 answer:

3 0

meter per second is the main answer of both

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4. An object is moving with an initial velocity of 9 m/s. It accelerates at a rate of 1.5

Nata [24]

Answer:

11.9 m/s

*But if you need the answer with sig figs it should be 10m/s (1sf) or 12m/s (2sf)

Explanation:

${vf}^{2} - {vi}^{2} = 2ad$

${vf}^{2} = 2ad + {vi}^{2}$

${vf}^{2} = 2 \times 1.5 \times 20 + {9}^{2}$

${vf}^{2} = 60 + 81$

${vf}^{2} = 141$

$vf = \sqrt{141}$

$vf = 11.874$

best answer if it worked

3 0

3 years ago

Please help me!

vovikov84 [41]

It is A. Im taking the test right now.

8 0

3 years ago

Read 2 more answers

PLEASE ANYONE CAN HELP ME !E.x/A block of metal has a volume of 0.09 m3

LuckyWell [14K]

Answer:

B = 1058.4 N

Explanation:

Given that,

The volume of a metal block, V = 0.09 m³

The density of fluid, d = 1200 kg/m³

We need to find the buoyant force when it's Completely immersed in brine. The formula for the buoyant force is given by :

$B=\rho gV$

g is acceleration due to gravity

$B=1200\times 9.8\times 0.09\\\\B=1058.4\ N$

So, the required buoyant force is 1058.4 N.

3 0

3 years ago

Friction, conduction and induction are three ways of creating a static charge on an object. Which method or methods will produce

Agata [3.3K]

Friction as it will move charge (electrons) from one object to another

5 0

3 years ago

A bullet is fired vertically upward a velocity of 80m/s to what height will the bullet rise above the point of projection

frozen [14]

Answer:

The bullet will rise 320 meters above the point of projection.

Explanation:

Assuming that air friction is negligent we can use the kinematic equation:

$v_{2} ^2=v_{1} ^2+2(-a)d\\0\frac{m^2}{s^2} =6400\frac{m^2}{s^2} +2(-10\frac{m}{s^2} )d\\-6400\frac{m^2}{s^2} =(-20\frac{m}{s^2}) d\\320m=d$

*acceleration is negative (-a) as it is acting in the opposite direction of the motion of the bullet.*

3 0

3 years ago

The SI unit of average spped and velocity.​

The SI unit of average spped and velocity.