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3 years ago

13

HELP ASAP PLEASE!!! A car starting from rest, accelerates constantly at 8m/s2 for 6s. How far did it travel during this time per

iod?

2 answers:

insens350 [35]3 years ago

7 0

Answer:

Explanation:

initial velocity(u) = 0 since it is starting from rest

acceleration(a) = 8m/s^2

time(t) = 6s

distance(s) = ?

s = ut + 1/2 at^2

s = 0 × 6 + 1/2 × 8 × (6)^2

s = 0 + 1/2 × 8 × 36

s = 0 + 144

s = 144 m

hope this helps

plz mark it as brainliest!!!!!!

nikdorinn [45]3 years ago

4 0

Using the equation a= d/t
Where a is acceleration, d is distance and t is time.
The answer is 48m

Explanation
A=d/t
8=?/6
You times both sides by 6
And get
8x6=?
And thus the answer is 48
And when u put in the units it’s
48 meters

Hope this helps !!

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The force that happens between two particles with mass

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The charge on the sphere is monitored as a beam of monochromatic light shines on the sphere. Initially nothing happens. The wave

Solnce55 [7]

Answer:

explanation of this effect is the photoelectric effect

Explanation:

Let's describe the process, when light of large wavelength falls, this implies a small energy, according to Planck's equation

E = h f = $\frac{h \ c}{ \lambda}$

the energy of the photons is not enough to carry out an electronic transition between two states of the material, when we decrease the wavelength (the energy of the photons increases), the point is reached where the energy of the beam is equal to some energy of a transition, by which the electrons are promoted and since we can see a certain charge, as the atoms are neutral, some electrons must be removed from the material, this is represented in the macroscopic case as the work function of the material, consequently a unbalanced load that is what we can measure.

When we increase the lightning intensity, what we do is that we increase the number of photons and if each photon can remove an electron, by removing the electrons the difference between it and the positive charge (fixed in the nuclei) increases.

We can analyze the interaction of the photon and the electron as a particular collision.

The explanation of this effect was made by Einstein in his explained of the photoelectric effect

8 0

2 years ago

A solid circular shaft and a tubular shaft, both with the same outer radius of c=co = 0.550 in , are being considered for a part

Norma-Jean [14]

Answer:

The power for circular shaft is 7.315 hp and tubular shaft is 6.667 hp

Explanation:

<u>Polar moment of Inertia</u>

$(I_p)s = \frac{\pi(0.55)4}2$

= 0.14374 in 4

<u>Maximum sustainable torque on the solid circular shaft</u>

$T_{max} = T_{allow} \frac{I_p}{r}$

= $(14 \times 10^3) \times (\frac{0.14374}{0.55})$

= 3658.836 lb.in

= $\frac{3658.836}{12}$ lb.ft

= 304.9 lb.ft

<u>Maximum sustainable torque on the tubular shaft</u>

$T_{max} = T_{allow}( \frac{Ip}{r})$

= $(14 \times10^3) \times ( \frac{0.13101}{0.55})$

= 3334.8 lb.in

= $(\frac{3334.8}{12} )$ lb.ft

= 277.9 lb.ft

<u>Maximum sustainable power in the solid circular shaft</u>

$P_{max} = 2 \pi f_T$

= $2\pi(2.1) \times 304.9$

= 4023.061 lb. ft/s

= $(\frac{4023.061}{550})$ hp

= 7.315 hp

<u>Maximum sustainable power in the tubular shaft</u>

$P _{max,t} = 2\pi f_T$

= $2\pi(2.1) \times 277.9$

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7 0

3 years ago

Find the equivalent resistance of this parallel circuit with two strands.

svlad2 [7]

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3 years ago

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umka21 [38]

Answer:

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3 years ago

Read 2 more answers