All categories

3 years ago

A car accelerates from rest to 90m/s in 3 seconds. What is the acceleration and how far did it travel?

Physics

1 answer:

Inessa [10]3 years ago

4 0

Answer:

Explanation:

1.)acceleration= final velocity-initial velocity/time

90m/s-0m/s /3seconds

=30m/s^2

2.) distance= speed*time

90m/s*3seconds

=270m

You might be interested in

Convection within the causes the plates to move.<br> mantle<br> ocean<br> inner core<br> crust

lyudmila [28]

Answer:

As described, The mantle causes the tectonic plates to move.

4 0

3 years ago

Me pueden ayudar.porfisssss

elixir [45]

Answer:

Plz translate in english so that i can answer

8 0

2 years ago

Evaluate A car company wants to build a wind-powered car that converts 100 percent of the mechanical energy in the wind to the m

lorasvet [3.4K]

Answer:

There's one or two reasons, depending on what is meant by "wind-powered car".

The first reason is that it's impossible for any transfer of energy to be 100% efficient. There will always be frictional losses.

Secondly, if the company means that they want to attach a wind turbine to the car so that the car is powered by the same wind that it generates, that violates the conservation of energy.

4 0

3 years ago

(11%) Problem 5: A uniform stationary ladder of length L = 2.7 m and mass M = 11 kg leans against a smooth vertical wall, while

jeka94

Answer:

970.2 N

Explanation:

We are given that

Length of ladder=2.7 m

Mass,M=11 kg

Coefficient of friction= $\mu=0.45$

$\theta=51^{\circ}$

Mass of painter=8M

Distance from base=d

We have to find the magnitude of the normal force exerted by the floor on the ladder.

Normal force exerted by floor on the ladder= $mg+8mg=9mg$

Where $g=9.8m/s^2$

Normal force exerted by floor on the ladder= $9\times 11\times 9.8=970.2N$

7 0

3 years ago

Write a hypothesis about the effects of magnetic and electric fields. Use the format of "if . . . then . . . because . . ." and

steposvetlana [31]

If the charged particle moves in the magnetic field or electric field, then it experiences magnetic force or electric force because of its magnetic or electric properties.

<h3>What is magnetic field?</h3>

The magnetic field is the region of space where a charged object experiences magnetic force when it is moving.

When a charged particle such as an electron or proton moves inside a conductor, magnetic lines of force rotate around the particle. This relative motion causes the magnetic field to generate.

Thus, If the charged particle moves in the magnetic field or electric field, then it experiences magnetic force or electric force because of its magnetic or electric properties.

Learn more about magnetic field.

brainly.com/question/14848188

#SPJ1

7 0

2 years ago