Ask question

Ask question

All categories

4 years ago

14

if air resistance is negligible what maximum height will be reached by a stone thrown straight up with an initial speed of 35 m/

s?

1 answer:

alexandr1967 [171]4 years ago

6 0

I think it will be 61.25 m

You might be interested in

Two hockey players, Z and X, are standing face-to-face and stationary on the ice. Skater Z has a mass of 72.5 kg. Skater X has a

Alik [6]

Answer:

1. The momenta of the skaters after the shove are equal in magnitude but opposite in direction. Skater Z's mation is an ex. of recoil.

Explanation:

The moment is preserved before and after the push (impact), this is called conservation of the moment, skater x will move in the direction of the force of the push, but skater z will move in the opposite direction with a different speed, but retaining the initial moment imparted.

Recall that linear momentum is defined as the product of body mass by Velocity

P = m * v

where:

P = linear momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

5 0

4 years ago

Steelhead trout migrate upriver to spawn. Occasionally they need to leap up small waterfalls to continue their journey. Fortunat

Brums [2.3K]

Answer:

s = 3.26 m

Explanation:

Given that,

Water leaves at a speed of 8 m/s

We need to find the maximum height that steelhead can jump. Let it can jump to a height of h.

At maximum height, final speed is equal to 0. We can use third equation of motion to find the maximum height.

$v^2-u^2=2as$

a = -g

$-u^2=-2gs\\\\s=\dfrac{u^2}{2g}\\\\s=\dfrac{(8)^2}{2\times 9.8}\\\\=3.26\ m$

Hence, the maximum height is 3.26 m.

7 0

3 years ago

What is the mass of a 100-N crate of delicious candy

Svetach [21]

Answer:

Explanation:

weight ( w ) = 100 N

mass (m) = ?

WE know

g = 10 m/s²

w = m * g

or

m = w / g

m = 100 / 10

m = 10 kg

hope it will help :)

6 0

3 years ago

The surface area of a material is a factor that affects heat conductivity. Does heat flow faster through a large surface area or

Elis [28]

The air flows slower in a bigger space. The air in a small space hit each other heating up, and move faster and faster. is that what your asking?

4 0

3 years ago

If matter has a wave nature, why is this wave-like characteristic not observable in our daily experiences?

nataly862011 [7]

Answer:

Due to the large mass of the objects, we can not observe wave-like characteristics in daily life.

Explanation:

The wavelength of De-Broglie is given by the relation:

$\lambda= h/mv$

Here, h is Planks constant, m is the mass of electron, v is the velocity.

The Plank’s constant value is very small,so the wavelength which is associated with ordinary object is very small and it is very difficult to observe in our daily life.

In daily life we observe the objects posses the larger mass and much smaller velocity,that is why the wave nature of these large objects is not more common in day to day life.

But for the small objects like neutrons and electrons, the wave behavior of particle is dominating .It is because of the reason that mass of neutron and electron are very small in comparision with the ordinary tennis ball.

5 0

4 years ago