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An iron rod and a zinc rod have lengths of 25.55 cm and 25.50 cm, respectively at 0 degree Celsius. At what temperature will the rods have the same length? The coefficient of expansion of iron and
A +5.00 -μC point charge is moving at a constant 8.50×106 m/s in the +y direction relative to a reference frame. At the instant when the point charge is at the origin of this reference fra
what is the linear speed of the tip of the propeller, at radium 1.5 m as seen by the pilot b an observer on the ground (the plane's velocity is parallel to the propeller's axis of rotation)
What is the bulk modulus of oxygen if 32.0 g of oxygen occupies 22.4 L and the speed of sound in the oxygen is 317 m/s?
A solution has a hydrogen ion concentration of 10-10 at 25 degrees Celsius. What is the pH of the solution?
Suppose that block m = .050kg, sometime after reaching the base of the incline, undergoes a completely inelastic collision with the stationary block M = .075kg. Use the principle of conservation of
yWhat are the products in this chemical reaction
A switch that connects a battery to a 17.7 μF capacitor is closed. Several seconds later you find that the capacitor plates are charged to ±53 μC. What is the emf of the battery?
List the two types of animal behavior Which one is genetic? Which one is gained by experience?
A layer of benzene (n = 1.50) 2.60 cm deep floats on water (n = 1.33) that is 6.50 cm deep. What is the apparent distance from the upper benzene surface to the bottom of the water layer when it is v
How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions?
What are the biogeographical boundaries of Virginia and why?
A car takes 9 s to go from v = 0 to v = 55 m/s at approximately constant acceleration. If you wish to find the distance traveled using the equation d = 1/2 at2, what value should you use for a?
What do you call the code trios in mRNA?
Drawing on Eratosthenes' method, if two observers are due north and south of each other and are separated by 400 km, what is the circumference of their spherical world if they see the same star on
A straight line in the direction 50.4? north of East. How long will it take the camel to cross the desert? Calculate the camel's eastward displacement while he crosses the desert.
A box is hanging from a chain having a mass of 50 kg. the box has a mass of 75 kg. find the tension in the top of the chain and the bottom of the chain?
What characteristics of electron microscopes make them most useful for studying viruses?
Calculate all the components of the velocity of the particle that you can from this information.(b) Are there components of the velocity that are not determined by the measurement of the force? (c)
What are the conditions of a controlled experiment
Consider an array of parallel wires with uniform spacing of 1.30 cm between centers. In air at 20.0°C, ultrasound with a frequency of 37.2 kHz from a distant source is incident perpendicular to
A circular coil with a diameter of 21.0 cm and 161 turns rotates about a vertical axis with an angular speed of 1200 rpm. The only magnetic field in this system is that of the Earth. At the locatio
1.Using you knowledge of DNA replication, describe the mechanisms in place for preventing mistakes during the process. Also discuss how potential mistakes could happen ? What would be the consequences
The spheres are brought into contact and then they are returned to their initial positions. Now, it is found that the spheres repel one another with a force whose magnitude is equal to that of the i
Draw the vector starting at the location of the charge. The location and orientation of the vector will be graded. The length of the vector will not be graded.