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4 years ago

Someone in a car going past you at the

Physics

1 answer:

Airida [17]4 years ago

3 0

Answer:

the awnser is 46 because the square root of d in yo mouth is dis jis wit da stik on yo block cuz

Explanation:

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hydrogen does not have the typical properties of a metal, However, hydrogen is located above group 1A because it has one______.?

frez [133]

One protons and also it grouped their because how it reacts with other materials such as other substances or materials

4 0

3 years ago

Deduce the relation between kwh and joule define 1 watt

dimulka [17.4K]

Explanation:

We know that kWh is a commercial unit of energy.

Also, 1 Joule = 1 watt × 1 seconds

$1\ kWh=1kW \times 1\ h$

Since ,1 h = 3600 s and 1kW = 1000 W

$1\ kWh=1000\ W \times 3600\ s\\\\1\ kWh = 36\times 10^5\ W-s\\\\1\ kWh=36\times 10^5\ J$

So, the relation is : $1\ kWh=36\times 10^5\ J$

1 watt is defined as the power of an appliance when the energy is transferred at a rate of 1 Joule per second.

5 0

4 years ago

how much kinetic energy is produced when an object having mass of 50gm throwing with velocity 80m/s?

Jlenok [28]

Answer:

KE = 160 J

Explanation:

KE = 1/2mv²

mass= 50gm = 0.05kg

velocity = 80

KE = 1/2 x 0.05 x 80²

= 1/2 x 0.05 x 6400

= 160

4 0

3 years ago

Read 2 more answers

A student places two magnets as shown; with their south poles equal distances from a compass. The student observes that the comp

Gre4nikov [31]

Since the direction of the needle depends on the proximity of the magnet thus this test alone is insufficient to determine the stronger magnet.

<h3>What is a magnetic field?</h3>

A magnetic field refers to the region where the effect of a magnet is felt. The magnetic field can be observed by the use of a compass.

Now, we know that the closer the magnet is to the compass, the greater the deflection hence this test alone is insufficient to determine the stronger magnet.

Learn more about magnetic field:brainly.com/question/14848188

#SPJ1

6 0

3 years ago

A car is moving initially at 30 m/s comes gradually at stop at 900 m . What is acceleration of the car ?

ziro4ka [17]

The acceleration of the car is 0.5 meters per seconds square.

Given the following data:

Initial velocity, U = 30 m/s

Distance, S = 900 meters

Note: The final velocity (V) of the car would be zero (0) m/s when it comes to a stop.

To find the acceleration of the car, we would use the third equation of motion;

Mathematically, the third equation of motion is given by the formula;

$V^2 = U^2 - 2aS\\\\0 = 30^2 - 2a(900)\\\\0 = 900 - 1800a\\\\1800a = 900\\\\a = \frac{900}{1800}$

<em>Acceleration, a </em><em>=</em><em> 0.5 </em> $m/s^2$ <em></em>

Therefore, the acceleration of the car is 0.5 meters per seconds square.