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2 years ago

ASAP!

Physics

2 answers:

inn [45]2 years ago

4 0

Answer:

Explanation:

C. Curved lines or straight lines

Alenkasestr [34]2 years ago

3 0

Curved lines or straight lines can function as trend lines on a graph.

Answer: Option C

<u>Explanation:</u>

In general, trend refers to a pattern or behavior to represent a set of data in terms. In statistical point of view, trend lines are used in graph to represent a set of data values in terms of function in order to determine a relation between them for better understanding. The trend line can either be a curved line or a straight line which shows the direction on which the data travels.

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This is a velocity versus time graph of a car starting from rest. If the area under the line is 10 meters: what is the correspon

shtirl [24]

Answer: The correct answer is option (D).

Explanation:

The area under the line is 10 meters that is displacement which means that area enclosed by the right angled triangle is 10 unit squares.

So, the it can be written as:

$\text{area of triangle}=\frac{1}{2}\times velocity\times time$

$10=\frac{1}{2}\times 2.0 m/s\times time$

$time =10 seconds$

Hence the, the correct answer is option (D).

6 0

2 years ago

What is the difference between time and velocity

Alexxx [7]

There are loads of similarities, but there are differences and that's what you want!

Speed- Is usually referring to how fast an object moves, it is calculated by space per unit.

Velocity- Refers to the rate at which said object changes position in a certain direction. Usually calculated by the displacement of space per unit.

SO it sounds the same, but simple answer Velocity deals with direction, and speed does not!

7 0

3 years ago

Plz help me with my PE class

andrew-mc [135]

Answer:

The answer to the first one is, group 1.

Explanation:

Sorry if this didn’t help if I find the answers to the others I’ll comment them to myself!

5 0

3 years ago

A basketball has a coefficient of restitution of 0.821 in collisions with the wood floor of a basketball court. The ball is drop

Tanya [424]

Answer: The height of its fourth bounce = 0.43m

Explanation:

The coefficient of restitution denoted by (e), is the ratio that shows the final velocity to initial relative velocity between two objects after collision

IT is given by the formula in terms of height as

Coefficient of Restitution, e = √(2gh))/√(2gH) = √(h/H)

Where

Coefficient of Restitution, e= 0.821

H = 2.07 m

At fourth bounce , we have that

Coefficient of Restitution, e⁴ =√(h₄/H)

Putting the given values and solving , we have,

e⁴ =√(h₄/H)

= 0.821⁴ = √(h₄/2.07)

(0.821⁴ )² =h₄/2.07

0.2064 x 2.07 = 0.427 = 0.43

At fourth bounce, h₄ height = 0.43m

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3 years ago

If a pulley system with an ideal mechanical advantage of 2,000,000 is used in lifting a 2,000 lb. car, how far would the car mov

krek1111 [17]

Answer:

Explanation:

4 0

3 years ago