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jekas [21]
3 years ago
6

Calculate the force necessary to accelerate a 10 kg table from O m/s to 4 m/s in 2 seconds.

Physics
1 answer:
yanalaym [24]3 years ago
6 0

Answer:

a= v/t

a = 4/2

a = 2 m/s^2

And F = M a

F = 10 × 2

F = 20 N

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An object starts at 4m/s and accelerates to 6m/s in 10 seconds. Find its displacement.
Natalka [10]

Answer:

Explanation:

The 2 equations we need here are, first:

a=\frac{v_f-v_0}{t} and then once we solve for the acceleration here:

v^2=v_0^2+2aΔx

Solving for acceleration:

a=\frac{6-4}{10}=\frac{1}{5}\frac{m}{s^2} and now we will use that in the other equation:

6^2=4^2+2(\frac{1}{5})Δx and

36 = 16 + \frac{2}{5}Δx and

20 = \frac{2}{5}Δx and

\frac{5}{2}(20)= Δx so

Δx = 50 m

6 0
3 years ago
The automobile beltway around many cities is approximately circular. Suppose that you start driving at point A on the east side
lord [1]

speed is the magnitude of velocity which is given as 90 km/hr and it does not change. only the direction change , the direction at any time is given by the tangent to the circle at that time and location.

from the diagram , at north side, the velocity is directed in west direction


5 0
3 years ago
Read 2 more answers
How much heat is contained in 100 kg of water at 60.0 °C?
yulyashka [42]

Answer:

so how much heat is there at 0 C? That's zero. But for every degree above that you have 4.184 J. You take it from there. Remember q = mc*delta T.

8 0
3 years ago
A hollow cylinder with an inner radius of 4.0 mm and an outer radius of 30 mm conducts a 3.0-Acurrent flowing parallel to the ax
Kryger [21]

Answer:

the magnitude of the magnetic field is 0.45 mT

Explanation:

Knowing the formula

B = \frac{m0* (i - i')}{2* Pi* r}

i = 3A    i' = 0A

B = \frac{4*3.1416e^{-7} * (3-0) }{2*3.1416*0.012}

B = 0.45 mT

8 0
3 years ago
Ms. Rwants to find out which bug spray works best: Off, Avon, or
vazorg [7]

Answer:

The same student should have been used for each test.

Explanation:

Some people are more susceptible to insect bites than others.

6 0
3 years ago
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