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
Harlamova29_29 [7]
3 years ago
11

Is telekinesis real??? I really wanna start learning it!

Physics
1 answer:
Law Incorporation [45]3 years ago
3 0

Answer:

Highly doubt something that requires great focus and mental strength exists

You might be interested in
Accourding to biopsychologists a temperament ()
Setler [38]
A persons or animals nature, especially as it permanently affects their behavior
8 0
3 years ago
What do we measure sound intensity in?
stira [4]

Answer:

we measure sound intensity in <em><u>D</u></em><em><u>ecibels</u></em>.

3 0
3 years ago
Read 2 more answers
A rock is thrown downward from an unknown height above the ground with an initial speed of 6.1 m/s. It strikes the ground 1.7 s
insens350 [35]

Answer:

24.531 m

Explanation:

t = Time taken = 1.7 s

u = Initial velocity = 6.1 m/s

v = Final velocity

s = Displacement

g = Acceleration due to gravity = 9.81 m/s² = a

Equation of motion

s=ut+\dfrac{1}{2}at^2\\\Rightarrow s=6.1\times 1.7+\dfrac{1}{2}\times 9.8\times 1.7^2\\\Rightarrow s=24.531\ m

The initial height of the rock above the ground is 24.531 m

7 0
3 years ago
The left end of a long glass rod 8.00 cm in diameter, with an index of refraction 1.60, is ground to a concave hemispherical sur
sp2606 [1]

Answer:

a) q = -9.23 cm, b)  h’= 0.577 mm , c) image is right and virtual

Explanation:

This is an optical exercise, where the constructor equation should be used

        1 / f = 1 / p + 1 / q

Where f is the focal length, p the distance to the object and q the distance to the image

A) The cocal distance is framed with the relationship

       1 / f = (n₂-1) (1 /R₁ -1 /R₂)

In this case we have a rod whereby the first surface is flat R1 =∞ and the second surface R2 = -4 cm, the sign is for being concave

       1 / f = (1.60 -1) (1 /∞ - 1 / (-4))

       1 / f = 0.6 / 4 = 0.15

        f = 6.67 cm

We have the distance to the object p = 24.0 cm, let's calculate

       1 / q = 1 / f - 1 / p

       1 / q = 1 / 6.67 - 1/24

       1 / q = 0.15 - 0.04167 = 0.10833

       q = -9.23 cm

distance to the negative image is before the lens

B) the magnification of the lenses is given by

       M = h ’/ h = - q / p

        h’= - q / p h

        h’= - (-9.23) / 24.0 0.150

        h’= 0.05759 cm

        h’= 0.577 mm

C) the object is after the focal length, therefore, the image is right and virtual

6 0
3 years ago
A capacitor is charged to a potential difference of 3 volt it delivers 30% store energy to lamp what is the final potential diff
nexus9112 [7]

Answer:

3.98V

Explanation:

Given

Pontential difference V as 3v

Energy delivered is 30%,

Recall that Enery E=1/2cv^2 from this E=V^2(since Current C is not provided we can assume a value 2)

So E=V^2

E=3^2=9

At full charge E=9,30%of 9,0.3*9=2.7 energy in capacitor is 9-2.7=6.3

But E=V^2

✓E=V

✓6.3=3.98V

4 0
3 years ago
Other questions:
  • What is the power output of an electric motor that lifts a 2.0 kilogram block 15 meters vertically in 6.0 seconds
    5·1 answer
  • The amount of water in reservoirs is often measured in acre-ft. one acre-ft is a volume that covers an area of one acre to a dep
    9·2 answers
  • Identify the Following as physical properties or chemical properties.
    5·2 answers
  • Starting the moon's cycle with the new moon phase, what phase will it be in after about a week?
    8·1 answer
  • Two boxes, P and Q, are at rest on a frictionless horizontal surface. A light, flexible cord connects them. The mass of P is gre
    6·2 answers
  • A rock has a mass of 25kg. The acceleration due to gravity is 10m/s and the height of the rock is 42 m. Find the potential energ
    13·2 answers
  • Compare the strengths of UV light and microwaves (in Hz). Which type of light is more powerful and how do you know?
    13·1 answer
  • A golf ball is sitting on a tee. The ball is struck with a golf club and flies
    15·2 answers
  • Please help!!!!!!!!!!!!!!!!
    7·1 answer
  • explain why using a parabolic mirror for a car headlight throws much more light on the highway than a flat mirror.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!