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A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall?
The potential energy of the rock before it fell can be calculated using the formula PE = mgh, where m is the mass of the rock, g is acceleration due to gravity (9.8 m/s^2), and h is the height. To calculate the potential energy, we need the mass of the rock, not just its weight in newtons. Given the weight of the rock is 98 N, we would need the mass of the rock to calculate its potential energy.
What energy does the student have before he jumps of the bridge?
The student has potential energy before jumping off the bridge, which is due to their height above the ground. This potential energy can be converted into kinetic energy as they fall.
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground. What was the kinetic energy of the rock at the midway point of its fall?
2,450 joules
A rock weighing 98 newtons is pushed off the edge of a bride 50 meters above the ground what was the kinetic energy of the rock before it began to fall?
The potential energy of the rock at the edge of the bridge is given by (PE = mgh), where (m = 98) N and (h = 50) m. Thus, (PE = 98 \times 9.8 \times 50 = 48020) J. None of this energy has been lost, so the kinetic energy before it fell is also 48020 J since the sum of potential and kinetic energy is conserved in the absence of work done by external forces.
What happens when unknown resistance is changed to other armin wheatstone bridge?
Changing the unknown resistance in a Wheatstone bridge will result in an imbalance in the circuit, causing a potential difference across the bridge. This potential difference can be used to determine the new value of the unknown resistance by adjusting other known resistances until the bridge is balanced again.
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall?
The potential energy of the rock before it fell can be calculated using the formula PE = mgh, where m is the mass of the rock, g is acceleration due to gravity (9.8 m/s^2), and h is the height. To calculate the potential energy, we need the mass of the rock, not just its weight in newtons. Given the weight of the rock is 98 N, we would need the mass of the rock to calculate its potential energy.
What energy does the student have before he jumps of the bridge?
The student has potential energy before jumping off the bridge, which is due to their height above the ground. This potential energy can be converted into kinetic energy as they fall.
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground. What was the kinetic energy of the rock at the midway point of its fall?
2,450 joules
A rock weighing 98 newtons is pushed off the edge of a bride 50 meters above the ground what was the kinetic energy of the rock before it began to fall?
The potential energy of the rock at the edge of the bridge is given by (PE = mgh), where (m = 98) N and (h = 50) m. Thus, (PE = 98 \times 9.8 \times 50 = 48020) J. None of this energy has been lost, so the kinetic energy before it fell is also 48020 J since the sum of potential and kinetic energy is conserved in the absence of work done by external forces.
A truck weighing 300000N crosses a bridge When it reaches the centre the support forces on the left and right sides of the bridge are each 400000 What is the weight of the bridge alone?
500000N or 500000/9.81= 50968 Kg
What was the name of the bridge before the confederation bridge?
Before the Confederatration Bridge was built it was a ferry, so the bridge had no prior name. The locals call the bridge the "fixed link"
What is weighing bridge?
A weighing bridge is usually a large, flat, rectangular metal plate, set at road level, on which a lorry can be parked to get the lorry's weight. An empty lorry may be weighed on entering a business premises (tare weight) and then weighed when loaded before leaving to give the gross weight. The difference between the gross and the tare will give the net weight of the load put on the lorry. It will also ensure that the lorry is not overloaded, which is a road-traffic offence.
What does the old Japanese saying sheck and old iron bridge well before crossing mean?
The old Japanese saying "Check and old iron bridge well before crossing" emphasizes the importance of thorough preparation and caution before taking risks or making decisions. It suggests that one should assess potential dangers and evaluate the stability of a situation, particularly when faced with uncertainty. This wisdom encourages mindfulness and careful consideration to avoid potential pitfalls.
What was used before the Golden Gate Bridge was built?
Before the Golden Gate bridge was built they had to use a Ferry to get across the river(the glolden gate strait)
What happens when unknown resistance is changed to other armin wheatstone bridge?
Changing the unknown resistance in a Wheatstone bridge will result in an imbalance in the circuit, causing a potential difference across the bridge. This potential difference can be used to determine the new value of the unknown resistance by adjusting other known resistances until the bridge is balanced again.
What would happen to the cell potential if a salt bridge is not used?
If a salt bridge is not used, the cell potential would decrease because without a salt bridge, the flow of ions between the two half-cells would be disrupted, leading to a buildup of charge and a decrease in the efficiency of the cell.
What bridge does the oxford and Cambridge boat race start?
Starts just after Putney Bridge and ends before Chiswick Bridge
