3 years ago

What is the length of the Mr. Freeze roller coaster launch rail?

Physics

1 answer:

hichkok12 [17]3 years ago

3 0

Answer:

I think 1,300ft (400m) not entirely sure.

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When the direction of an object changes, what happens to its velocity?

Vikentia [17]

Answer:

I think that

It changes?

8 0

3 years ago

What is the relationship between momentum and kinetic energy.

Margaret [11]

Answer:

constant object, momentum increases directly with speed

Explanation:

whereas kinetic energy increases the square of the velocity due to energy momentum

6 0

3 years ago

Objects 1 and 2 attract each other with a gravitational force of 45 units. If the mass of Object 1 is doubled, then the new grav

Novosadov [1.4K]

Explanation:

Fgravity = G*(mass1*mass2)/D²

so, if you double one of the masses, what does that do to our equation ?

Fgravitynew = G*(2*mass1*mass2)/D²

due to the commutative property of multiplication

Fgravitynew = 2* G*(mass1*mass2)/D² = 2* Fgravity

so, the correct answer will be 2×45 = 90 units.

4 0

3 years ago

Read 2 more answers

Dont know whether its b or c. (cuz for sure it transports energy)

masha68 [24]

Sound waves are a type of classical waves and so they transport only energy without transporting matter through the medium.

6 0

3 years ago

A football punter accelerates a football from rest to a speed of 15 m/s during the time in which his toe is in contact with the

ioda

Answer:

Force, F = 44 N

Explanation:

Given that,

Initial speed of the football, u = 0

Final speed, v = 15 m/s

The time of contact of the ball, t = 0.15 s

The mass of football, m = 0.44 kg

We need to find the average force exerted on the ball. It is given by the formula as :

$F=ma\\\\F=\dfrac{mv}{t}\\\\F=\dfrac{0.44\times 15}{0.15}\\\\F=44\ N$

So, the average force exerted on the ball is 44 N. Hence, this is the required solution.

6 0

3 years ago