Gymnasts often practice on foam floors, which increase the collision time when a gymnast falls. What effect does this have on collisions

Answers

Answer 1

Answer:

The effect of the gymnast on the collision will increase. An elastic collision is when two bodies collide and separates after collision conserving the total kinetic energy before and after collision.

Answer 2

Answer:

Answer:

it increces the time of the fall

Explanation:

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You kick a ball with a speed of 14 m/s at an angle of 51°. How far away does the ball land?

shelly starts from rest on her bicycle at the top of a hill. After 6.0s she has reached a final velocity of 14m/s. what is shellys acceleration.

Answers

Answer:

Acceleration, $a=2.33\ m/s^2$

Explanation:

It is given that,

Initial speed of Shelly, u = 0

After 6 seconds, she has reached a final velocity of 14 m/s, v = 14 m/s

We need to find the acceleration of Shelly. The formula to find the acceleration is given by :

$a=(v-u)/(t)$

$a=(14\ m/s-0)/(6\ s)$

$a=2.33\ m/s^2$

So, the acceleration of Shelly's is $2.33\ m/s^2$ . Hence, this is the required solution.

divide 14 by 6 and there is your answer with the unit of m

A 7.5 kg block is placed on a table . If it's bottom surface area is 0.6m2 how much pressure does the block exert on the table top?

Answers

Pressure is defined as the force per unit area. This measurement is more convenient to use for describing a force exerted. The standard unit for pressure is Pascal. For this problem, force is the gravitational pull from the block. Calculations are as follows:

P = F/A where F = mg

F = 7.5 ( 9.81) = 73.6 N

P = 73.6 N / 0.6 m^2 = 122.6 Pa

A current of 120 mA flows past a point in a circuit for 25 s. How much charge passes the point in this time?
How many electrons pass the point in this time?

Answers

a) I = 120 mA = 120 x 10^(-3) A = 0.12
A = 0.12 C/s ... [b/c 1 A = 1 C/s]
t = 25 s
I = Q/t
Q = It
Q = 0.12 * 25 = 3 C
so 3C of charge passes the point during the
25 s interval

You are vacationing in Iceland and exploring one of its famous volcanoes, Eyjafjallajokul, which erupted in April 2010. While sightseeing, you find some rocks near the base of the volcano. What type of rock would these most likely be?Igneous

Metamorphic

Sedimentary

Lavaneous

Answers

Answer:

Igneous

Explanation:

A volcano region is where aesthenospheric rocks are released to the surface of the earth. This aesthenosphere rocks are usually semi liquid and highly viscous . The volcanic eruption releases magma originating from the aesthenosphere to the surrounding. When this magma creeps or erupt to the surface of the earth , it is known as lava.

Due to the low temperature and pressure the surface of the earth possess, the Lava solidifies to form extrusive igneous rocks.

Igneous rocks can be formed below the earth surface or on the earth surface . The location where this rocks forms determines the kind of igneous rock formed.

Generally, Igneous rocks are formed from molten magma. If the molten magma solidifies on the surface of the earth like the case of the famous volcanoes, Eyjafjallajokul the rocks formed are known as Extrusive igneousrocks.

Rocks most likely found at the base of the volcano will be an igneous rock.

igneous rock is the correct answer I hope this helps

Nonuniform positive acceleration

Answers

It means that acceleration changes with time.

Every charged particle produces ?

Answers

Every charged particle produces a magnetic field.

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