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nasty-shy [4]
3 years ago
13

If a ball has a velocity of 5 m/s and a kinetic energy of 1000 J, what is its mass? ​

Physics
1 answer:
zheka24 [161]3 years ago
7 0

Answer: I don't know how to do this

Explanation: sorry I am not sure.

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A microscopic magnetic region composed of a group of atoms whose magnetic fields are aligned in a common direction is called a(n
Dmitrij [34]
<span>A microscopic magnetic region composed of a group of atoms whose magnetic fields are aligned in a common direction is called as a DOMAIN. in most materials, when these groups are randomly distributed, the substance will show ZERO magnetism.</span>
7 0
3 years ago
Write an expression to evaluate the relative error in g (given that g= 2h/t^2) in terms of h,Δh,t,Δt
mr Goodwill [35]
Your a are very strange
6 0
3 years ago
A 7.00-g bullet, when fired from a gun into a 1.00-kg block of wood held in a vise, penetrates the block to a depth of 8.00 cm.
gulaghasi [49]

Answer:

In the second case there's no way to know what depth the bullet will penetrate into the block.

Explanation:

Since the block is on a <em>frictionless </em>surface, when hitted by the bullet, this last one could barely penetrate the surface of the block and, both, start moving as one (<em>perfectly inellastic collition</em>) since here, there's no vise to hold the block into place.

4 0
3 years ago
How much salt (nacl) is carried by a river flowing at 30.0 m3/s and containing 50.0 mg/l of salt? give your answer in kg/day?
slamgirl [31]
Answer: 129,600kg/day
In this question, you are given the river flow (30m3/s) and the salt concentration. Then to determine the amount of salt carried, you simply need to multiply the flow with concentration. Be careful because the unit in this question is different and need to be converted. The equation would be:

Salt = river flow x salt concentration
Salt = 30m3/s x 1000L/m3 x 50mg/L = 1,500,000mg/second

Then convert it into kg/day
Salt= 1,500,000mg/second x 10^-6 kg/mg x (3600 second/hour) x (24 hour/day)= 129,600kg/day
7 0
3 years ago
An object with a density of 0.85 g/cc is dropped into each of the two beakers shown below. Beaker 1 has a density of 0.5 g/cc. B
Oliga [24]

Answer:

The object will sink in the liquid in beaker 1.

The object will float in the liquid in beaker 2

Explanation:

The density of an object relative to the density of a fluid determines if the object floats or sink in a fluid. The density of a material is the measure of the amount of mass of that material packed into a unit volume of that material.

For the beaker 1, the liquid in this beaker has a density of 0.5 g/cc, which is lesser than the density of the object (0.85 g/cc). This means that the object will add more mass than there should be to the volume of the space it displaces within the field. This results in the object sinking in the fluid.

For beaker 2, the liquid in this beaker has a density of 1 g/cc, which is more than the density of the object (0.85 g/cc). This means that the object will add less mass than there should be to the volume of the space it displaces within the field. This results in the object floating in the fluid.

8 0
4 years ago
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