1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MaRussiya [10]
3 years ago
8

A 2 kg ball is thrown down with 50J of energy from a height of 10m, what is its velocity before it strikes the ground (neglect a

ir resistance).
Physics
1 answer:
san4es73 [151]3 years ago
6 0

Answer:

V=14

Explanation:

PE=KE

mgh=1/2mv^2

(2)(9.8)(10)=1/2(2)v^2

(radical) 196=(radical) v

V=14

You might be interested in
A race car traveling at 44m/s slows at a constant rate to a velocity of 22m/s over 11 seconds , how far does it move during this
krok68 [10]

Answer:

add 44m/s and 22m/s then multiply it by 11

Explanation:

8 0
2 years ago
Which of the following concepts helps explain the modern technology used in 3D films?
stealth61 [152]

Answer:

a.

Explanation:

6 0
3 years ago
VELOCITY, SPEED, DISTANCE ETC..
vaieri [72.5K]

Answer:

Explanation:

Speed = distance / time

Velocity  = displacement / time

So ,

Speed = 50 km / 0.5 hr = 100 km/h

Velocity  = 40 km / 0.5hr = 80 km/h

4 0
2 years ago
How do vafiations in electronegativity result in the unequal sharign of electrons in polar molecuels?
nirvana33 [79]

Answer and Explanation:

Polar molecules are formed as a result of unequal sharing of electrons by the atoms in the molecule which creates polarization like that in water molecule.

If the electrons are shared equally by the atoms in the molecule then there won't be any polarization of the molecule and the molecule is non polar.

Electro-negativity is that property of an atom which lets it attract negative charges, i.e., electrons. The more the electro-negativity of an atom in the molecule the more are the chances of its polarization.

5 0
3 years ago
A spherical shell has inner radius 1.5 m, outer radius 2.5 m, and mass 850 kg, distributed uniformly throughout the shell. What
Nimfa-mama [501]

Answer:

The magnitude of the gravitational force is 4.53 * 10 ^-7 N

Explanation:

Given that the magnitude of the gravitational force is F = GMm/r²

mass M = 850 kg

mass m = 2.0 kg

distance d = 1.0 m , r = 0.5 m

F = GMm/r²

Gravitational Constant G = 6.67 × 10^-11 Newtons kg-2 m2.

F = (6.67 × 10^-11 * 850 * 2)/0.5²

F = 0.00000045356 N

F = 4.53 * 10 ^-7 N

3 0
3 years ago
Other questions:
  • Charles' Law
    15·1 answer
  • Car decelerates uniformly and comes to a stop after 10 s. The car's average velocity during deceleration was 50 km/h. What was t
    15·1 answer
  • One kg of air is contained in a piston-cylinder system and it undergoes a Carnot cycle having an efficiency of 60%.The heat tran
    14·1 answer
  • The television station sends​
    8·1 answer
  • What's the formula to calculate the radius of pendulum bob ​
    8·1 answer
  • Are volcanoes fed by highly viscous magma a greater threat to life and property than volcanoes supplied with very fluid magma?
    6·1 answer
  • How net current on a toroid is zero?​
    7·1 answer
  • Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible? (1 point)
    12·1 answer
  • Does an eclipse occur every time the moon is in the new or full moon phase?
    6·2 answers
  • T or F? An electric field has strength, but no direction.????
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!