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2 years ago

The game was invented in Holyoke, Mass True or false?

Physics

1 answer:

zheka24 [161]2 years ago

6 0

Answer:

true

Explanation:

Throwback Thursday: When Volleyball Was Invented in Massachusetts. On this day in 1895, a Holyoke man created a game called 'mintonette

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Two blocks collide on a frictionless surface. After the collision, the blocks sticktogether. Block A has a mass M and is initial

jasenka [17]

Answer:

ΔPa = –2/3Mv

ΔPb = 2/3Mv

ΔPc = Mv.

Explanation:

See attachment below please.

5 0

2 years ago

the radius of planet is drecresing by 50%without changing its mass . the acceleration due to gravity will be?

tigry1 [53]

4 times more then real

Explanation:

if the radius of the earth decrease by 50% then the acceleration due to gravity increases by 4 times.

4 0

2 years ago

If you dropped a ball from a height of 10 m and measured its distance to the ground every 0.1 s, what would the graph of positio

wlad13 [49]

If you dropped a ball from any height, and measured its distance from the ground at any regular interval while it's falling, the graph of that distance versus time would be a graph that curves downward.

-- The ball is falling down. As time goes on, it gets closer and closer to the ground. Its remaining distance from the ground keeps decreasing, so the line on the graph slopes down.

-- The speed of the ball keeps increasing (it accelerates) because of the gravitational force on it. As time goes on, it covers more of the remaining distance during each interval than it did in the previous interval. The downward slope of the graph keeps increasing.

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3 years ago

A long solenoid has 103 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.60 cm perp

Aneli [31]

Answer:

0.23348 A

Explanation:

B = Magnetic field

v = Velocity of electron = $1.38\times 10^7\ m/s$

q = Charge of electron = $1.6\times 10^{-19}\ C$

$\mu_0$ = Vacuum permeability = $4\pi \times 10^{-7}\ H/m$

r = Radius of circle = 0.026 m

N = Number of turns = 103 turns/cm = $103\times 100\ turns/m$

I = Current

The magnetic and centripetal force will be balanced

$Bqv=m\frac{v^2}{r}\\\Rightarrow B=\frac{mv}{qr}$

The magnetic field in solenoid is given by

$B=N\mu_0 I\\\Rightarrow I=\frac{B}{N\mu_0}$

From the first equation

$I=\frac{\frac{mv}{qr}}{N\mu_0}\\\Rightarrow I=\frac{mv}{N\mu_0qr}\\\Rightarrow I=\frac{9.11\times 10^{-31}\times 1.38\times 10^7}{103\times 100\times 4\pi \times 10^{-7}\times 1.6\times 10^{-19}\times 0.026}\\\Rightarrow I=0.23348\ A$