Physics, 19.01.2021 06:20 user1234573

An automobile with a mass of 1000 kg accelerates at a traffic light with a force of 4000 N. What is the automobile's acceleration?

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Answers

Answer from: froyg1234

Explanation:

Given

mass (m) = 1000 kg

Force (F) = 4000 N

Acceleration (a) = ?

We have the relation

F = m * a

or, 4000 = 1000 * a

or a = 4000 / 1000

a = 4 m/s²

The acceleration of the automobile is 4 m/s²

Hope it will help :)❤

Answer from: robertobi5397

$\boxed {\boxed {\sf 4 \ m/s^2}}$

Explanation:

According to Newton's Second Law of Motion, force is equal to the product of mass and acceleration.

F=m*a

We know the mass is 1000 kilograms and the force is 4000 Newtons. Let's convert the units to simplify the question for later.

1 Newton is equal to 1 kilogram meter per square second. The force of 4000 N is equal to 4000 kg*m/s²

$m= 1000 \ kg \\F= 4000 \ kg*m/s^2$

Substitute the values into the formula.

$4000 \ kg*m/s^2=1000 \ kg *a$

We want to find the acceleration, a. We must isolate the variable on one side of the equation.

1000 kg and a are being multiplied. The inverse operatio of multiplication is division. Divide both sides of the equation by 1000 kg.

$\frac{4000 \ kg*m/s^2 }{1000 \ kg } =\frac{1000 \ kg*a}{1000 \ kg}$

The kilograms will cancel.

$\frac{4000 \ m/s^2 }{1000 }=a$

$4 \ m/s^2 =a$

The autombile's acceleration is 4 meters per square second.

Answer from: Quest

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm. the wire diameter is d = 0.9 mm. the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

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write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

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write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2) in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

Answer from: Quest

in this image, you can see solar radiation going through ocean water.

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