All objects emit ______ radiation? A-electromagnetic B-kinetic D-solar

Consider a situation where you are playing air hockey with a friend. The table shoots small streams of air upward to keep the pu

artcher [175]

When we hit the puck from tap the puck will move forward.

This is due to the impulse provided by us at the time of hit. Due to this impulse the puck will move forward and start moving in some direction.

As soon as puck move forward the force on it is zero as the weight of the puck is counterbalanced by the air stream force and there is no other force on it so puck will continue its motion till it will hit at some other point.

So here the motion of the puck will be uniform motion till it will collide with some other points.

So here the correct option will be given as

moves with a constant speed until hitting the other end.

5 0

3 years ago

Nuclear power is regarded as a clean source of energy because it doesn't produce or

Nadya [2.5K]

Emit greenhouse gases

Explanation:

Nuclear power is regarded as a clean energy source because it doesn't produce or emit greenhouse gases.

Greenhouse gases are mostly generated by the use of fossil fuels that pollutes the environment causing surging global temperature.

Nuclear power is produced by the splitting of radioactive minerals in rods. The process releases a large amount of energy. When the fuel elapses, only radioactive wastes remains.

There is no production of any greenhouse gas in the process of harnessing nuclear energy.

This is why it is considered a clean energy source.

learn more:

Non-renewable resources brainly.com/question/2948717

#learnwithBrainly

8 0

3 years ago

You're in a car that gets 37 miles per gallon of gas, driving it at a constant speed. If you took the gas from the car tank, and

Sergeu [11.5K]

Answer:

Required diameter of hose pipe = 0.2864 mm

Solution:

From the continuity eqn, the fluid flow rate is given by:

Av = $\frac{V}{t}$

where

A = cross-sectional area = $\pi r^{2}$

r = hose pipe radius

v = velocity of gas

Also, $v = \frac{displacement, d}{time, t}$

Using:

1 gallon = 3.854 l

1 mile = 1609.34 m

$1 m^{3} = 1000 l$

Therefore,

$A\frac{d}{t} = \frac{V}{t}$

$\pi r^{2} = \frac{V}{d}$

$\pi r^{2} = \frac{(1 gal).(\frac{3.7854 l}{gal}).(\frac{10^{- 3} m^{3}}{l})}{37 miles(\frac{1609.34 m}{miles})}$

$6.357\times 10^{- 8} = \pi r^{2}$

$r^{2} = 2.024\times 10^{- 8}$

$r = 1.423\times 10^{- 4} m = 0.1423 mm$

The diameter of the hose pipe = 2r = $2\times 1.423\times 10^{- 4}$

The diameter of the hose pipe = $2.846\times 10^{- 4} m = 0.2846 mm$

4 0

3 years ago

If gravity did not affect the pain of a horizontally thrown ball the ball would

Drupady [299]

If gravity had no effect on a ball after you threw it ... and there also
were no air to slow it down ... then the ball would continue traveling
in a straight line, in whatever direction you threw it.

That's the heart and soul of Newton's laws of motion ... any object
keeps moving at the same speed, and in a straight line in the same
direction, until a force acts on it to change its speed or direction.\

If you threw the ball horizontally, then it would keep moving in the
same direction you threw it. But don't forget: The Earth is not flat.
The Earth is a sphere. So, as the ball kept going farther and farther
in the same straight line, the Earth would curve away from it, and it
would look like the ball is getting farther and farther from the ground.

4 0

2 years ago

Read 2 more answers

A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension

Elena-2011 [213]

Answer:

Therefore,

The speed of the wave on the longer wire is 95 m/s.

Explanation:

Given:

For Short wire, speed is

$v_{s}=190\ m/s$