Fizik Ödev Yardımı

Fizik, tüm doğa bilimleri arasında çok önemli bir konudur, yaşamın harikalarını açıklamak için kullanılır ve aynı zamanda çalışılması en zor konulardan biridir.

QuestionAI, etkileşim halindeki kuvvetler altındaki moleküllerin eşlik eden yörüngeleri ile her bir atom ve onun özellikleri hakkında bilgi edinebileceğiniz, fiziğe yeni başlayanlar için zengin ve kolay bir fizik problemi çözücüdür. Elbette galaksiler arasında saklı sırları diğer fizik meraklılarıyla da keşfedebilirsiniz. Tahminlerinizi ve sorularınızı yapay zekaya cesurca yöneltin; kolayca güvenilir yanıtlar bulacaksınız.

1. In order to prevent food contamination. a food handler must A practice frequent handwashing. B. 45^circ F(T^circ C) about C. sanitize all work surfaces every 5 hours D. wash and rinse all utensils regularly 2. A correctly designed and installed air curtain can be used to prevent A. pests from entering the operation. B. foul odors from entering the dining room. C. water from damaging floors and plumbing. D. grease stains from attaching to walls. 3. A food handler reports to work with dirty hair, dirty nails, and a visibly solled uniform. Why should the manager send the food handler home? A. The food handler's appearance will upset the manager and coworkers B. The food handler will set a bad example for employees working in other areas of the operation. C. Dirty employees give customers a negative impression of the operation D.Poor personal hygiene increases the chance of contamination from bacteria 4.Seafood toxins and mushroom toxins are forms of what kind of contamination? A. Physical B Chemical c Biological D. Environmental Sendiateli Food Protection Manage Certification Examination diagnosed been Charge (PiC) do? What must the Person lim A. Let the food hander work until he or she begins to show symptoms of the B. thente food hander to stay home and illness. then contact the local regulatory C. Exclude the food handler, tell the food authority handler to go to a doctor, and contact the FDA D. Allow the food handler to work at the cash register until the roommate is no longer sick. 6. When a food recall occurs, the operation must A. immediately notify customers B. Immediately notify the Centers for Disease Control (CDC). C. throw out all of the food item. D. discontinue use of the food item. 7. The hot time/temperature control for safety (TCS) food in a self-service food bar must be maintained at or above A. 135^circ F(57^circ C) B. 150^circ F(66^circ C) C. 155^circ F(68^circ C) D. 160^circ F(71^circ C). 8.Which type of thermometer checks the surface temperature of food? A. Thermocouple B. Infrared C. Bimetallic stemmed D. Time-temperature indicator 5699.

3. In this question i and i are perpendicular horizontal unit vectors.] Three forces. F_(1),F_(2) and F_(3) are given by F_(1)=(5i+2j)N F_(2)=(-3i+j)N F_(3)=(ai+bj)N where a and b are constants. The forces F_(1),F_(2) and F_(3) act on a particle P of mass 4kg. Given that P rests in equilibrium on a smooth horizontal surface under the action of these three forces. (a) find the size of the angle between the direction of F_(3) and the direction of -j (4) The force F_(3) is now removed and replaced by the force F_(4) given by F_(4)=lambda (i+3j)N where lambda is a positive constant. When the three forces F_(1),F_(2) and F_(4) act on P . the acceleration of P has magnitud 3.25ms^-2 (b) Find the value of lambda

Question Zach is a physics student who is considering taking an extra course in French. What is an incentive that might encourage him to take the French course? An incentive that might encourage him to take the French course is __ A. softer grading in French B. a decrease in French teachers' wages C. an increase in tuition D. a decrease in the GPA of students who take French

2. A car moves along a straight horizontal road with constant acceleration ams^-2 where agt 0 __ The car is modelled as a particle. At time t=0 the car passes point A and is moving with speed ums^-1 In the first three seconds after passing A the car travels 20 m. In the fourth second after passing A the car travels 10 m. The speed of the car as it passes point B is 20ms^-1 Find the time taken for the car to travel from A to B.

u=o 7.A helicopter is hovering at rest above horizontal ground at the point H.A parachutist steps out of the helicopter and immediately falls vertically and freely under gravity from rest for 2.5s.His parachute then opens and causes him to immediately decelerate at a constant rate of 3.9ms^-2 for T seconds (Tlt 6) , until his speed is reduced to Vms^-1 . He then moves with this constant speedVms^-1 until he hits the ground. While he is decelerating he falls a distance of 73.75 m. The total time between the instant when he leaves H and the instant when he hits the ground is 20 s. The parachutist is modelled as a particle. (a) Find the speed of the parachutist at the instant when his parachute opens. (1) (b) Sketch a speed-time graph for the motion of the parachutist from the instant when he leaves H to the instant when he hits the ground. (2) (c) Find the value of T. (5) (d) Find, to the nearest metre,the height of the point H above the ground. 1 b