a ball has mass of 0.1 kg and an initial velocity of 20 m/s the ball is given an acceleration of 30 m/s^2 for 5s what is the net force on the ball during acceleration

Answers

Answer 1

Answer: Fnet = m * a
Fnet = 0.1 * 30
Fnet = 3N

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suppose the mechanical advantage of a machine is 4 and the input force is 20 N. What is the output force?

Answers

Suppose the mechanical advantage of a machine is 4, and the input force is 20 N. What is the output force?

Answer is : 80 Newtons

Answer: The output force is 80 N.

Explanation :

It is given that,

Mechanical advantage of a machine is 4

Input force is 20 N

We know that the ratio of output force to the input force gives the mechanical advantage of a machine.

$m=(F')/(F)$

Where

F' is the output force

F is the input force

$F'=20\ N* 4$

F' = 80 N

So, magnitude of output force is 80 N.

Earthquakes occur on the earth today, so we can assume they occurred in the past. Which important geologic principle does this sentence support?A. superposition
B. original horizontality
C. uniformitarianism
D. faunal succession

Answers

the answer is c your welcome

the answer is A superposition...........

IN a physics lab, a student discovers that the magnitude of the magnetic field at a certain distance from a long wire is 4.0μT. If the wire carries a current of 5.0 A, what is the distance of the magnetic field from the wire?

Answers

Answer:

0.25 m

Explanation:

The intensity of the magnetic field around a current-carrying wire is given by:

$B=(\mu_0 I)/(2 \pi r)$

where

$\mu_0 = 4\pi \cdot 10^(-7)Tm/A$ is the permeabilty of free space

I is the current

r is the distance from the wire

In this problem, we know:

$B=4 \mu T=4 \cdot 10^(-6) T$ is the magnetic field

$I=5.0 A$ is the current in the wire

Re-arranging the equation, we can find the distance of the field from the wire:

$r=(\mu_0 I)/(2 \pi B)=((4\pi \cdot 10^(-7))(5.0 A))/(2\pi(4\cdot 10^(-6) T))=0.25 m$

An object with a mass of 6.3 kg has a force of 7.1 newtons applied to it.The resulting acceleration of the object is __ with the unit of ___.

Answers

The object of mass with 6.3 Kg will have an acceleration of 1.12 m/s² if a force of 7.1 Newtons is applied.

What is force?

Force is an external agent acting on a body to change its motion or to deform it. There are various kinds of forces such as gravitational force, magnetic force, nuclear force etc.

Acceleration is a physical quantity that measures the rate of change in velocity of a body. Like force, it is a vector quantity. As per Newton's second law of motion, force is the product of mass and acceleration.

Hence, F = m a

given that, m = 6.3 Kg

F = 7.1 N.

then a = F/m

a = 7.1 N/6.3 kg

= 1.12 m/s²

Therefore, the acceleration of the object is 1.12 m/s².

Find more on acceleration :

brainly.com/question/3046924

#SPJ6

Answer:

F=ma

7.1=6.3×m

7.1÷6.3=m

m=1.126 kg

Nuclear fusion ____.a. takes place in the sun
c. can be controlled in the laboratory
b. occurs at low temperatures
d. is used in medicine

Answers

Nuclear fusion takes place inthe sun, letter A. The sun is a ball of hot gases. Initially, it containshydrogen and helium. When they fuse together, it forms carbon. After carbon,nitrogen, oxygen silicon follows until it forms a massive hot ball of gases. Thenet result is the fusion of four protons into one alpha particle with therelease of two positrons, two neutrons and energy.

Based on the article "Will the real atomic model please stand up?,” describe what Dalton’s theory states about a molecule of water.

Answers

Answer:

Dalton’s theory about compounds tells us that all water molecules have different kinds of atoms, two hydrogen atoms for every one oxygen atom.

Explanation:

Answer:

Sample Response: Dalton’s theory about compounds tells us that all water molecules have different kinds of atoms, two hydrogen atoms for every one oxygen atom.

Explanation:

its literally the sample response

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