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LenKa [72]
2 years ago
10

A football player kicks a ball with the force of 50N. Find the impulse on the ball if his foot stays in contact with the footbal

l for 0.01s
Physics
1 answer:
seropon [69]2 years ago
6 0

Answer:

Impulse  = 0.5Ns

Explanation:

F = 50N

t = 0.01s

Impulse = ?

Impulse = Force * t,

Impulse = 50N * 0.01s = 0.5Ns

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Is Global warming changing earth temperature ️​
Yakvenalex [24]

Explanation:

<h2>Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.</h2>
7 0
3 years ago
Let the masses of blocks A and B be 4.50 kg and 2.00 kg , respectively, the moment of inertia of the wheel about its axis be 0.4
Free_Kalibri [48]

Answer:

Accelerations of both the sides is 0.6125 m/s^{2}, A moves downwards whereas B moves upwards.

\alpha=6.125 rad/s^{2}

Tension on side A = 4.5 × g= 44.1 m/s^{2}

Tension on side B= 2.0 × g=  19.6 m/s^{2}

Explanation:

As both, the blocks A and B are attached due to the constraint they can only possess a single acceleration a.

Observe the figure attached, let the tension with Block A be T_{2} and the tension attached with Block B be T_{1} .

Tensions will be only be due to the weight of the blocks as no other force is present.

T_{2} = 4.5 × g= 44.1 m/s^{2}

T_{1} = 2.0 × g=  19.6 m/s^{2}

Now, lets make a torque equation about the center of the wheel and find the alpha

T_{2}×R- T_{1}×R= MI( Moment of Inertia of Wheel)× Alpha

where, R= Radius of the wheel=0.100m  and

           Alpha(\alpha)= Angular acceleration of the wheel

MI of the wheel= 0.400 kg/m^{2}

(44.1-19.6)R=0.400\alpha

\alpha = \frac{24.5 * 0.100}{0.400}

\alpha=6.125 rad/s^{2}

Acceleration = R ×\alpha

                    = 0.1 * 6.125

                    =0.6125 m/s^{2}

Accelerations of both the sides is 0.6125 m/s^{2}, A moves downwards whereas B moves upwards.

7 0
3 years ago
A 0.5 kg mass moving East with a velocity of 8 m/s is acted upon by a force of 20 N for 2.0 sec.
Andrej [43]

Answer:b

Explanation:

7 0
3 years ago
The radius of The moon is one_fourth and its mass is one eighty-first that of The earth. If The acceleration due to gravity on T
77julia77 [94]
g_{moon} =  g_{earth}*  \frac{( \frac{1}{81} )}{ (\frac{1}{ 4^{2}})}  = g_{earth} *  \frac{16}{81} = 9.8*16/81= 1.935
7 0
3 years ago
5 reasons why it is important to do proper maintenance and safety of kitchen tools and equipment​
makvit [3.9K]

1. Reduced utility costs

Any piece of equipment that uses electricity, gas, or water will run much more efficiently if it is kept clean and is serviced regularly. Machinery that is properly cleaned maintained will inevitably lower your utility costs, as clean and efficient equipment requires less electricity to accomplish its purpose.

2. Fewer major failures

Unanticipated equipment breakdowns can close your business down in an instant, which will result in lost revenue and unhappy customers. To prevent major malfunctions, all equipment should be inspected and serviced routinely by a reliable and certified commercial appliance repair company.

It is also a good idea to carry extended warranties on appliances in case they need to be repaired or replaced quickly. It goes without being said that you should budget for any failures that occur out of warranty.

Routine cleaning, testing, and servicing can help prevent catastrophic and unexpected failures — failures that could have catastrophic effects on your organization or even force you to shut down temporarily.

3. Consistently good food quality and service

If your kitchen equipment is not functioning properly or is not clean, the quality and taste of the food is sure to be compromised. This could ultimately result in the loss of your customer base to your competition. There is nothing worse than serving food that all tastes the same because of dirty equipment, including cookware.

Appliances that are clean and running at maximum efficiency will also ensure that the meals the kitchen puts out will be consistently good and will get to the table quickly. Good food and speedy service could lead to more customers and increased income potential.

On the flip side, no one pays good money for food that is prepared with second-rate equipment, and if you use underperforming appliances, your customers are bound to notice the decline in food quality.

4. Longer life expectancy for equipment

It is well known throughout the industry that commercial kitchen equipment is costly to replace. You could spend several thousand dollars on just a single appliance that has broken or has simply worn out because of lack of care and following the proper guidelines to keep it clean and efficient.

By taking good care of your appliances, you can significantly extend their lifespan. Just like a car, the machinery needs to be cleaned, oiled, and serviced on a regular basis to ensure a long and useful life.

Go above and beyond to get the most out of your equipment for as long as possible – it’s well worth it in the long run!

5. Increased resale value

The hospitality industry often buys and sells used machines when upgrading or moving a business to a new location. There is a fairly big market for used equipment and plumbing fixtures that are clean and in good working condition. Start-up restaurants will often seek out good deals on well-maintained equipment to help with the initial costs associated with opening a new establishment.

You may also be able to catch a tax break by donating properly maintained machinery to a nonprofit organization or school in need of kitchen equipment.

Regardless, maintaining your equipment preserves not only its life expectancy, but also its physical value.

6. Safer work environment

Keeping your employees safe at work should be one of your highest priorities, if not the very highest. This is not limited to hygienic food storage and preparation practices. Your equipment, large and small, must be operating properly and up to the codes and standards of the local health and fire departments.

Keeping cooking appliances free of food, grease, and debris will help prevent dangerous flare-ups of hot flames that could injure your cooks.

Also, assuming you have a kitchen fire suppression system, you need to keep the system functioning to protect your employees and your building if a stove catches fire. Smoke and heat detectors, sprinkler systems, and fire extinguishers also need to be routinely inspected, tested, and maintained or replaced.

Of course, your staff should take proper safety measures while cooking, like wearing protective equipment. But caring properly for your machinery will reduce the chance of having a fire in the first place.

In conclusion, it is extremely important to have a regular maintenance and cleaning schedule for all restaurant equipment and systems. This includes ovens, ranges, ventilation systems, refrigerators, freezers, dishwashers, and many more.

Putting a schedule in place for maintenance, and sticking to it, is one of the best things you can do to keep your kitchen running efficiently and safely with the highest quality of food and service.

4 0
3 years ago
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