Description : What is the potential energy of a 50 newton object resting on the edge of the cliff 30 meters high?
Last Answer : 1500 joules
Description : You visit the Grand Canyon and drop a quarter off the edge of a cliff. The quarter falls 16 feet the first second, 48 feet the next second, 80 feet the third second, and so on. If the quarter fell 9 seconds before hitting the ground, how far down is it?
Last Answer : an=a1+(n-1)dan=16+(6-1)32=176The 6th term is 176. Now we are ready to find the sum:
Description : A 10 kilogram object falls from a cliff 100 meters high. At the midpoint of its fall its total energy is: w) 2450 Joules x) 4900 Joules y) 10,000 Joules z) 20,000 Joules
Last Answer : ANSWER: Y -- 10,000 JOULES
Description : If you were falling off a cliff on a horse and right before the horse hit the ground you jumped on the horses back. Would you take damage like you fell from the cliff or only the 5 feet or whatever that you jumped up in the air from the horse?
Last Answer : You would still get hurt, but you'd be less hurt than if you landed directly on the ground.
Description : An iron sphere of mass 30 kg and an aluminium sphere of mass 10 kg, both having the same diameter are dropped vertically from a cliff. When they are 10 metrs from the ground, they have identical a.Accelerations b.Momenta c.Kinetic energies d.Potential energies e.All of the above
Last Answer : a. Accelerations
Description : An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?
Last Answer : ANSWER: 2 METERS
Description : A car with a mass of 1000 kilogram is moving at a speed of 10 meters per second. The kinetic energy of the car is: w) 100 Joules x) 5000 Joules y) 10,000 Joules z) 50,000 Joules
Last Answer : ANSWER: Z -- 50,000 JOULES
Description : A boy on a bicycle is resting at the top of a hill. Then, he rides his bicycle down the hill. Describe how the boy’s potential and kinetic energy differ at the top, middle, and bottom of the hill.?
Last Answer : idk
Description : A moving bullet hits a solid target resting on a frictionless surface and gets embedded in it. What is conserved in this process? (a) Both momentum and kinetic energy (b) Kinetic energy alone (c) Momentum alone (d) Neither momentum nor kinetic energy
Last Answer : Ans:(c)
Description : When a slingshot exerts a 10 Newton force on a rock, the rock accelerates at 50 meters per second squared. What force is required to accelerate the rock to 150 meters per second squared?
Last Answer : ANSWER: 30 NEWTONS
Description : A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring?
Last Answer : ANSWER: 6 METERS
Description : It is the western shore of Hawaii and I stand on the edge of a cliff... will you join me?
Last Answer : What a relief! I thought you were going to jump! But I have to say no to your invitation. I don’t have anything to throw over the edge and I no longer can drink. But thanks for the offer. I hope a lot of people will take you up on your offer.
Description : A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground ... : 1 (2) 1 : 2 (3) 1 : 4 (4) Cannot be found from the given information.
Last Answer : (1) 1 : 1 Explanation: The stone which is throws upward will have the same velocity of u at the point of its original position when it is falling down. Another stone is thrown downwards with u. So ... will hit the ground with same velocity. So the ratio between the speeds of two stones will be 1:1
Last Answer : 1 : 1
Description : An object dropped from a cliff falls with a constant acceleration of 10 m/s2. Find its speed 5 s after it was dropped. -Science
Last Answer : v=u+atv=u+at u=0u=0 v=10×5=50m/sv=10×5=50m/s
Description : What is the speed of an object that is dropped off a cliff after 5 seconds and no air resistance with an initial speed of 0 ms?
Last Answer : Feel Free to Answer
Description : A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The ... and released. What is the kinetic energy of the mass as it passes through its equilibrium position?
Last Answer : ANSWER: 90 JOULES
Description : A girl throws a 2 kilogram rock vertically upward. It reaches a maximum height of 5 meters. What is the kinetic energy of the rock the instant it leaves the girl's hand?
Last Answer : ANSWER: 100 JOULES (accept 98 joules)
Description : As a 10 kilogram mass on the end of a spring passes through its equilibrium position, the kinetic energy of the mass is 20 joules. The speed of the mass is: w) 2.0 meters per second x) 4.0 meters per second y) 5.0 meters per second z) 6.3 meters per second
Last Answer : ANSWER: W -- 2.0 METERS PER SECOND
Description : A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. ... ? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds
Last Answer : ANSWER: W -- 2,000 NEWTONS
Description : The driveshaft of a car rotates at 450 radians per second with a torque of 150 Newton-meters. How much power is produced?
Last Answer : ANSWER: 67,500 WATTS
Description : An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: w) 0.5 meters per second x) 2 meters per second y) 10 meters per second z) 50 meters per second
Last Answer : ANSWER: X -- 2 METERS PER SECOND
Description : If a student drops a stone from a cliff of height 30 m and the time it takes to reach the ground is 2.6 s, then the acceleration due to gravity isA. 9 m s-2 B. 10 m s-2 C. 4 m s-2 D. 8.8 m s-2
Last Answer : 8.8 m s-2
Description : An object of mass m and velocity v has kinetic energy= 200J. Find the new kinetic energy if the mass of the object becomes double and velocity still remains the same? -Physics 9th
Last Answer : let the k.e. in first case be x x = 1/2*m*v^2=200j in second case let the kinetic energy be x' v'=v m'=2m x'= 1/2*2m*v^2 x'= 2(1/2*m*v^2) x'=2(x) x'=2*200j x'=400j
Description : Two objects A and B are moving with same momentum. Mass of object 'B' is greater then mass of object 'A'. Which of the two object will have higher kinetic energy? -Physics
Last Answer : Let m1 and m2 be the masses of the body Let m1>m2Given that m1v1=m2v2v2v1=m1m2∴ Ratio between their kinetic energies , =K2K1=21m2v2221m1v12⟹K2K1=m2m1×m12
Description : What is the kinetic energy of an object with a mass of 12kg, moving at 13 m/s?
Last Answer : 1014 Joules
Description : When a object is vibrating what energy do we say is in the kinetic energy?
Last Answer : yes
Description : When you drop an object from a height does its kinetic energy increase or decrease as it falls?
Last Answer : decrease
Description : If the velocity of an object is tripled its kinetic energy is multiplied by?
Last Answer : What is the answer ?
Description : ________ energy is the total kinetic and potential energy of the particles in an object.?
Last Answer : In microscopic particles it's called internal energy. In macroscopic particles it's called thermodynamic energy.
Description : Work done on an object to bring it to certain point in space is called A. gravitational potential energy B. potential energy C. kinetic energy D. mechanical energy
Last Answer : kinetic energy
Description : When the velocity of an object is tripled, another quantity which is tripled at the same time is the object's: w) momentum x) potential energy y) kinetic energy z) mass
Last Answer : ANSWER: W -- MOMENTUM
Description : There should not be any combination joint on level crossing proper and its approaches up to a) 15 meters b) 30 meters c) 40 meters d) 50 meters
Last Answer : d) 50 meters
Description : In a patient of hypertension, the dose of propranolol that normalized blood pressure, reduced resting heart rate to 50/min. Which of the following β blockers will be most suitable for him as an ... so that heart rate is not markedly reduced: A. Pindolol B. Celiprolol C. Bisoprolol D. Atenolol
Last Answer : A. Pindolol
Description : What is Lou Carson drinking just before he goes over a cliff in the film 'Jesse Stone Night Passage'?
Description : According to newton second law of motion, the acceleration of an object equals the net force acting on the object divide by the object?
Last Answer : Mass.
Description : How much does an object having the mass of 100kg weight in newton. a. 981 N b. 991 N c. 981.6 N d. 980.1N F = ma
Last Answer : 900,000lb/hr;625 ft/s981 N
Description : A body of weight W is resting at a plane inclined at 30? to the horizontal. It is attached to a string making an angle of 60? with horizontal. If the angle of friction be 30? the tension in the string would be a.Zero b.W c.W/2 d.2W e.None of the above
Last Answer : c. W/2
Description : Consider the following statements: 1. In a resting neuron, there is difference in electrical charge on either side of surface membrane called potential difference. 2. It is due to unequal distribution of K+ ions and Na+ ions on either side if the ... ? (a) 1 only (b) 1, 2 (c) 1, 2, 3 (d) 1, 2, 3, 4
Last Answer : Ans:(b)
Description : An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. If the acceleration due to gravity is 10 meters per second squared, the potential energy of the object relative to the ... is: w) 10 joules x) 20 joules y) 100 joules z) 250 joules e) none of the above
Last Answer : ANSWER: Z -- 250 JOULES
Description : Statistics , Problems with Two Projectors ? From the top of a 100 meter high tower an object is thrown at a 30 ° angle with a horizontal speed of 50 ms . At the same time another object from ... সাথে with the same velocity horizontally . At what time and at what height will the two objects meet ?
Last Answer : answer:
Description : An open-circuit fault between the pressure switch and the 'annunciator module' shown in the illustration would cause the alarm circuit to react in the same manner as if ___________. EL-0094 A. 3.5 ... below switch setting C. 50 PSI were applied to the 'setpoint module' D. the pressure switch closed
Last Answer : Answer: B
Description : An elderly hypertensive was treated with hydrochlorothiazide 50 mg daily. Even after a month, his BP was not reduced to the desired level and another antihypertensive was added. After 2 hours of taking the ... likely other drug given to him is: A. Atenolol B. Captopril C. Methyldopa D. Amlodipine
Last Answer : B. Captopril
Description : Bob fell over 30 feet but there was not a scratch, bruise, or broken bone. He did not get hurt at all. How is that possible? -Riddles
Last Answer : He fell over 30 peoples feet at the movie theaters.
Description : An automobile is travelling at 25 m/s. It takes 0.3 second to apply the brakes after which the deceleration is 6 m/s2. How far, in meters, does the automobile travel before it stops? a.45 b.107 dynes c.40 d.50 e.60
Last Answer : e. 60
Description : On Broad Gauge tracks Banner flag at a level crossing shall be provided at a distance of--- ---------- from ends of check rail before opening the gate for road traffic. a) 5 meters* b) 3 meters c) 6 meters d) 30 meters
Last Answer : a) 5 meters*
Description : A patient of CHF was treated with furosemide and digoxin. He became symptom-free and is stable for the last 3 months with resting heart rate 68/min in sinus rhythm but left ventricular ... medication as before C. Continue the diuretic but stop digoxin D. Continue digoxin but stop the diuretic
Last Answer : A. Stop above medication and start an ACE inhibitor
Description : What is a line that is drawn to show the edge and surface ridge of an object?
Last Answer : contour line
Description : Point where all weight of object acts is called A. central point B. center of gravity C. edge D. center of mass
Last Answer : center of gravity