Answers created by Steve J.

• Back to user's profile
• Next
• In the figure, each resistance is of 10 ohms. The equivalent resistance between P and R is ?
  
• Describe how the graphs y=5x^2 and y=1/5^2 are similar or different?
  
• If the velocity of the wave is 200 m/s, what is the frequency of the wave?
  
• A bulb used in a car is rated 12 V , 48 W . find the energy consumed in one minute when the bulb is connected to 6 V battery?
  
• What is the perimeter of a triangle which adjacent sides of the square angle are 9" each and the opposite side of that angle has 12'9"?...And what is the area of the previous triangle?
  
• How can you tell that the magnetic field gets weaker farther from the magnet?
  
• A bicycle moves with a constant velocity of 5 km/hr for 10 mins and then decelerates at the rete of 1 km/h till stops. Find the total distance covered by the bicycle?
  
• A net force of 10N acts on a mass of 25kg for 5 seconds. What is the acceleration?
  
• A ball is thrown horizontally from the top of a building. How far will the ball fall in 2.00 seconds?
  
• Why is the moment of inertia important?
  
• What is a centrifugal force?
  
• What is the weight of a 67.0-kg person who is running with a speed of 10.0 m/s?
  
• Years ago the barges that traveled along the canals were dragged by horses. Suppose that the horse is exerting a force of 7900 N at an angle of 18 degrees with the direction of movement of the barge, which is sailing in a straight line through the channe?
  
• A swimmer speeds up from 1.1 m/s to 1.3 m/s during the last 20 s of a workout. What is the swimmer's acceleration during this time interval?
  
• What is conserved when two objects collide in a closed system?
  
• How much secs? (physics)
  
• The weight of an object on earth varies directly with its weight on the moon. If a baby weighing 24 pounds on the earth only weighs 3.84 pounds on the moon, how much does a 194-pound man weigh on the moon?
  
• What does x = in the equation: -1619.776 - (-838.3x)?
  
• How do you solve #\frac { 2m + 3} { m } = 1#?
  
• One example of acceleration?
  
• When a 40-N force, parallel to the incline and directed up the incline, is applied to a crate on a frictionless incline that is 30° above the horizontal, the acceleration of the crate is 2.0 m/s^2, up the incline. The mass of the crate is ?
  
• What is the gravitational force of attraction between two bodies of masses 1500kg and 8500kg which are 2.6km apart?
  
• The collision between a tennis ball and a tennis racket tends to be more elastic in nature than a collision between a halfback and linebacker in football. Is that true or false?
  
• On a trip to Italy, Cheyne rented a car to tour the country. As he turned onto the highway, he noticed that the speed limit was 95 km/h. How fast can Cheyne drive in mph?
  
• Please help me figure out question 15 and explain it so i can understand it? look at the picture below for the question and information. thank you.
  
• Earthing is done only in the outer part of the electric appliances. What is the reason?
  
• What will be the formula used to find work done against resistance if loss in potential energy and gain in kinetic energy is given?
  
• What is the square root of 0.4?
  
• What is your apparent weight?
  
• How much electron emitted per second from 60W bulb.?
  
• What affects how fast a sound reaches your ears?
  
• Total resistance of the circuit ?
  
• The flow of thermal enery is called...?
  
• 10 ocean water waves whose crests are 12 meters apart reach or hit the shore each minute. What is the wavelength, wave frequency, and wave speed?
  
• How is constant motion illustrated on a position-time graph?
  
• What is its wavelength in sea water?
  
• Can someone help me figure out questions 6 and 7? im learning physics.
  
• What is the moment of inertia of a pendulum with a mass of #5 kg# that is #1 m# from the pivot?
  
• Does eye color affects how you see light?
  
• How can acceleration change the motion of an object?
  
• What is the relationship between elastic collisions and kinetic energy?
  
• Imagine an object that can float it's on a table,take a beaker filled with water.Bring it onto the object and make it upside down,keep it on the object(most of the water should remain in),object floats i.e gets kinetic energy, from where has energy come?
  
• How is urine 95% water if kidney only takes out impurities?
  
• Tameron is driving #540# miles to college. If he drives at an average rate of #45# miles per hour, how many hours will it take to get #3/4# of the way there?
  
• Suppose an automobile was accelerating at 2 mi/h every 5 s and could keep accelerating for 2 min at that rate. How fast would it be going at #t = 12 min#? How far would it be from the starting line?
  
• I really bad at physics can someone help me with this question ?
  
• What is an example of electrical energy transforming into light energy?
  
• A wheel with a 15cm diameter is rotating at a rate of 7 radians/sec. what is the linear speed of a point on its rim, in meters per minute?
  
• If 360 ocean water waves, each 20 meters long, hit the shore every hour, what is the wave speed? What is the wave period?
  
• A boat downstream from A to B takes 7 hours, upstream from B to 9 hours. How much time does a log take from A to B? (Driftwood along the water velocity)
  
• How do you write #1.91 times 10^-3 # in standard notation?
  
• A car that is moving at a constant velocity of 30 m/s, east for 5 seconds has an acceleration of what?
  
• How much work does it take to raise a #7 kg # weight #23 m #?
  
• How do you graph #y=7/2x-2#?
  
• What is the SI base unit of time?
  
• An airplane is flying in a horizontal circle of radius 1.5 km with a speed of 450 km/h. What is the magnitude of the centripetal acceleration of the plane?
  
• What is 3.63 as a percentage?
  
• Is it possible to convert rotational motion into linear? How?
  
• A cyclist riding a cycle fitted with a dynamo to a tyre gets bright light in the bulb connected, when he pedals fast. This is because?
  
• In order to heat a room evenIy, should heating vents be p|aced near the floor or near the ceiling of the room?
  
• Can displacement ever be greater than distance? If so, how?
  
• How far have you pushed the car?
  
• What is the magnitude of the net force exerted on the cement?
  
• An object with volume 6.0*10^1 m^3 and mass of 2.600*10^4 kg will have bouyancy force,in ethyl alcohol?
  
• A body of mass 16 kg accelerates vertically down with a force of 8 N. What is the minimum force required to make it move upward with the same acceleration? [Take #"g = 10 m/s"^2#].
  
• Are si units the same as metric units?
  
• Which has more momentum, an object with a mass of #5kg# moving at #3m/s# or an object with a mass of #9kg# moving at #2m/s#?
  
• Why is angular momentum of the disk itself conserved?
  
• Which of the following quantities is different from the others?
  
• How do you solve #x^2 + 6 = -5x#?
  
• Could an elephant have the same momentum as a golf ball?
  
• X-6/4 - 2x+1/2 -3= x/3-1/2 how do you solve?
  
• A wrench with a length of #63 cm# is being used to unscrew a #7/2 cm# bolt. If a torque of #18 Nm# is needed to overcome the friction keeping the bolt in place, what is the minimum torque that must be applied to the wrench to unscrew the bolt?
  
• Is the impulse a force?
  
• How do you solve by substitution #y=-4x+8# and #y=x+7#?
  
• How does rate change?
  
• What is 432,115 rounded to the nearest hundred thousand?
  
• Is gravity an action-at-a-distance force?
  
• What is the maximum velocity of an object that can travel on land of earth?
  
• What's the difference between force and energy?
  
• Explain why the resistance of several resistors in series is increased if an additional resistor is connected in series with them? [4 marks]
  
• If a body moves from rest in a straight line with nan acceleration (a) and another one with an acceleration (2a) covering the same distance ,the ratio between time of motion of the first body yo the second one is.....?
  
• A 15-kg box is resting on a wedge which has an angle of inclination of 30° and a coefficient of friction 0.15. What is the value of gravity's vector?
  
• Why does a falling object eventually slows down?
  
• How does torque relate to force?
  
• How does mass affect the horizontal velocity and distance and drop time of a projectile?
  
• How does the radius affect the moment of inertia?
  
• The force with which Earth pulls on the Moon is? a) somewhat greater than Moon's pull on Earth b) equal in magnitude to the force that Moon pulls on Earth. c) the only force acting between Earth and Moon.
  
• When is acceleration not constant?
  
• A girl 60kg stands at centre of a playground mery-g-round rotating about frictionles axle at 1 rad/s.treat m-g-round as a uniform disc(m=100kg radius=3m). If the girls jumps to a position 1m from the centre, what will be their angular v after she landed?
  
• How do you calculate voltage drop in a series circuit?
  
• Why will lamp 1 light as much as before if lamp 2 gets broken? And why will the ammeter show more current if lamp 2 is working?
  
• 3/2 as a fraction?
  
• How do you simplify #(2.5 times 10 ^-5) / (5 times10^4)# in scientific notation?
  
• What are some examples of forces?
  
• If any object enters the gravitational field the potential energy of the object in order is transformed into kinetic energy therefore it reaches the ground.what form of energy is converted into potential energy?
  
• "Energy is neither created nor destroyed but can be changed from one form to another"Now,imagine an object at 10m height from ground, so it has potential energy, if earth disappears suddenly what will happen to its energy?
  
• A vector A points vertically upwards and vector B points towards north. What is the direction and magnitude of vector product A*B?
  
• How many kilometers would it take for light to travel in 4 1/2 minutes?
  
• A man took 49.17 s to swim the 50.0-m length of the pool and swim back. Assume that half of his record time was spent traveling the length of the pool. What was his speed?
  
• Next