A car is traveling at a constant speed of 12 m/s when the driver accelerates the car reaches a speed of 26 m/s in 6 s what is the average acceleration of the car ?

Answers

Answer 1

Answer: 26-12= 14

14/6=2 1/3 m/s

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A ball is shot up from the ground with an initial vertical velocity of 30 m/s. What is the velocity of the ball as it reaches its highest point

Answers

Answer:

0 m/s

Explanation:

At the highest point, the vertical velocity is 0 m/s.

There's no horizontal velocity.

So the total velocity at the highest point is 0 m/s.

Which category of materials allows electrons to travel through them freely

Answers

Conductors should be the answer. Most conductors are metals.

Why does a balloon when robbed on a wall sticks to the wall

Answers

Answer:

static electricity

Explanation:

If there are 50 grams of U-238 on day zero of radioactive decay, how much will there be after 4.5 billion years

Answers

We use the formula of the half-life to calculate for the remaining U-238 after 4.5 billion years. The formula is expressed as A = A₀ (1/2)^(t/h) where A is the final amount, A₀ is the initial amount of the substance, t is the time and h is the half-life of the substance wherein for U-238 h is equal to 4.47 billion years.

A = A₀ (1/2)^(t/h)
A = 50 (1/2)^(4.5 / 4.47)
A = 24.88 g

25 if using usatsyprep

If 600 J of work is done in 3 s, what is the power? (Power: P = W/t)

Answers

P = W/t
= 600 / 3
Power = 200 Watt

Answer: 200 W

Explanation:

In physics, power is defined as the amount of work done divided by the time taken to do that work:

$P=(W)/(t)$

where W is the work done and t is the time.

In this problem, the work done is W=600 J, while the time taken is t=3 s. Substituting into the formula, we find the power:

$P=(600 J)/(3 s)=200 W$

Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.30 m/s2 What force would you need to use or apply to the cart. I don't know how to solve this

Answers

Use Newton's second law of motion:

Force = (mass) x (acceleration) .

Take that formula, write ' 65 kg ' in place of 'mass', and
write ' 0.3 m/s² ' in place of 'acceleration', and solve it
for Force.

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now, because only an hour ago, you thanked me for solving the
exact same problem for somebody else, and the entire solution
was right there, WITH the answer !

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Calculate the force between a 0.006 C charge and a 0.001 C charge 4 meters apart.

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A bear is sitting at rest on a tricycle. The bear then starts to accelerate uniformly at a rate of 2.5 m/s2 (meters per second square). How long will it take the bear to reach a velocity of 15 m/s (meters per second)