04/07/21

Change in Droplet Temperature
A drop of rain falls from a height of 300 m in relation to the ground. The drop first falls uniformly accelerated with an acceleration of 6 m/s^2. At a height of 50 m from the ground the drop is... more
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04/06/21

After the explosion which statements below are true?
An object initially at rest explodes I. Momentum is conserved II. Velocity is conserved III. The masses of fragments are equalIV. The momentum of the system is zeroA. I and III B. I, II, and III ... more
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04/05/21

The center of mass of the resulting panel is located in which quadrant?
A square panel of aluminum with sides of length L is positioned. A circular hole of diameter d = L/2 is cut from the sheet.
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04/05/21

Where is the center of mass of these particles?
Two particles are connected by a massless rod. The 2.0 kg mass is positioned at x = 0, and the 8.0 kg mass is positioned at x = 5m.
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04/01/21

Urgent physics help

An electron has mass m=9.1x10-31 kg and charge q = 1.6x10-19 C. In an experiment at Oak Ridge National Laboratory, an electron is accelerated from rest by moving through the electric field between... more
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04/01/21

Urgent physics help
The next three questions relate to this scenario.An electron has mass m=9.1x10-31 kg and charge q = 1.6x10-19 C. In an experiment at Oak Ridge National Laboratory, an electron is accelerated from... more
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04/01/21

Physics intensity question
From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete. How far would he need to move from the jackhammer so that its perceived loudness decreases by a factor of 8?
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04/01/21

How does the magnetic field produced at the center of a circular loop depend on the size of the loop?
a) The magnetic field strength decreases as one over the diameter of the loop squared. b) The magnetic field strength increases with the area of the loop. c) The magnetic field strength increases... more
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03/31/21

Explain clearly in simple words how can we relate the conservation of charges to kirchhoffs junction rule and the conservation of energy to kirchhoffs loop rule
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03/30/21

DC Circuit LAB..
1.Can resistor values be determined from the color codes? How? Are these values exact? Explain.2. What is a voltmeter? How should we connect it to the circuit? Why?3. What is a ammeter? How should... more
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03/29/21

A 50kg block is sliding on a frictionless surface at 4.0 m/s when it strikes a spring with a spring constant k of 1000 N/m.
A 50kg block is sliding on a frictionless surface at 4.0 m/s when it strikes a spring with a spring constant k of 1000 N/m.a. What will be the speed of the block when the spring is fully... more
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03/29/21

A 10kg object is falling through air. If the object was initially 5.0m off the ground, and hits the ground at a speed of 9.0 m/show much energy was dissipated due to air resistance?
A 10kg object is falling through air. If the object was initially 5.0m off the ground, and hits the ground at a speed of 9.0 m/show much energy was dissipated due to air resistance?
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03/29/21

Mechanical Energy: Work
A force does 35000J of work along a distance of 10.5m. Find the applied force. *
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03/26/21

Current electricity

1.The resistance of a copper wire of length 5m is 0.5 Q.If the diameter of the wire is 0.05 cm, determine its specific resistance.2.The resistance of a nichrome wire at 0°C is 100.lf its... more
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03/24/21

Consider a ballistic pendulum.
The mass of the bullet is 0.80000kg and the mass of the block of wood is 200.0kg. The bullet has an initial speed of 260.0m/s. Determine, using conservation of linear momentum and mechanical... more
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03/24/21

What is the maximum horizontal range
what is the maximum horizontal range reached by a missile fired by a fighter jet travelling at 200m/s and 700m above the ground? (Take g=10m/s²
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03/24/21

A child in a tree house uses a rope attached to a basket to lift a 24 N dog upward through a distance of 5.0 m into the house.
How much work does the child do in lifting the dog?Express your answer to two significant figures and include the appropriate units.
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03/23/21

A building has a flat roof of area 42.0 m2. Wind blows over the top of the roof at 14.8 m/s. The air inside the building is stationary. What is the TOTAL force acting on the roof?
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03/22/21

A U-tube has dissimilar arms, one having twice the diameter of the other. It contains

A U-tube has dissimilar arms, one having twice the diameter of the other. It contains an incompressible fluid and is fitted with a sliding piston in each arm, with each piston in contact with the... more
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03/22/21

The more the atoms are moving , the lower the thermal energy of the object will be

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03/22/21

A pipe of constant radius carries water at 3.25 m/s. The pipe starts at ground level, then rises to 5.00 m high, where it pours into the air at 1.00 atm. What is the water pressure at ground level?
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03/21/21

How far in feet from the base of the antenna is the guy wire secured?
A guy wire 15 ft long supports an antenna at a point that is 12 ft above the base of the antenna. How far in feet from the base of the antenna is the guy wire secured?12 ft
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03/20/21

What is the acceleration of the Earth in its orbit measured in m/s/s?
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03/19/21

Magnitude of the velocity
A 20 g wooden ball is set in horizontal motion using the same set-up used in the activity. The hanging mass is 100 g. The radius of the motion is supposed to be 60 cm however the string made a 10... more
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03/19/21

physics help I am very confused
2 kg object is spun around in a circle of radius 0.5m with a period of 5.0sA. what is the frequency of its rotationB. if the object's velocity is 0.63m/s, what is the acceleration?C. what is the... more
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