A squirrel sitting on the ground starts to run with an acceleration of 5.1 m/s 2. How fast is the squirrel going after 0.25 seconds?A. 20.4 m/s
B. 1.28 m/s
C. 0.49 m/s
D. 3.1 m/s

Answers

Answer 1

Answer: initial speed = 0
final speed = v
acceleration = 5.1
time taken = 0.25
v=u+at
v=1.28 m /s

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A current of 4A flows in a wire of resistance 60 ohm. calculate electrical energy consumed in 2 min.

Answers

Power dissipated = energy/second= (current)² x (resistance)

Power dissipated = energy / second = (4)² x (60) = 960 joules per second= 960 watts

Energy = (power) x (time) = (960 watts) x (2 minutes) x (60 sec/minute)

= 115,200 joules

the four forces shown have the same strength. which force would be most effective in opening the door?

Answers

if the same forces are applied, then the door will not move due to similar strength. So, regardless the door won't move.

What are the types of force ?

Force is a parameter which can be defined as either pushing or pulling of the object resulting in the object’s interaction or movement, without force the objects can not move, be stopped or change the direction.

Force is a quantitative interacting parameter between two physical bodies, means an object and its environment, there are different types of forces in nature.

If an object is in its moving state then it will be either static or motion, the position of the object will only be changed if it is externally pushed or pulled.

The contact type of force are the force that occurs when we apply some effort on an object such as Spring Force, Applied Force, Air Resistance Force, Normal Force, Tension Force, Frictional Force

Non-Contact type of forces are another type of forces occur from a distance such as Electromagnetic Force, Gravitational Force, Nuclear Force

For more details Force, visit

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Hey There! According to science, if the same forces are applied, than the door will not move due to similar strength. So, regardless the door won't move. Have A Brainly Day!

What happens when there is a change in pressure at any point in a fluid

Answers

A change in pressure applied to an enclosed fluid is transmitted undiminished to every point of the fluid and to the walls of the container. This is a statement of Pascal's Principle, which is the basis of the hydraulic jack you see lift cars at the garage.

Do you get the same answer if you drive 1.0x10²km at each of the two speeds

Answers

That all depends on what the question is.

If the question is "How long does it take you to get there ?",
then the answer is 'No' .

If the question is "What color is the car ?", then
the answer is 'Yes' .

Which statement is a correct expression of the Law of Conservation of Mass?A.
The total mass is unpredictable in a chemical reaction.

B.
The total mass remains the same during a chemical reaction.

C.
The total mass decreases during a chemical reaction.

D.
The total mass increases in a chemical reaction.

Answers

The correct answer is B. The law of conservation of mass states that the mass of an isolated system is neither created nor destroy by chemical reaction or physical transformation. This means that the mass of subtances in an isolated system remains constant, it can not decrease and it can not increase.

Answer: B. The total mass remains the same during a chemical reaction.

Explanation:I Took The Test.

A bulldozer does a work of 50,000 Joules to move a boulder through a distance of 15m. how much force is applied to move the boulder