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Question: A thermometer reading 65° F is placed in an oven preheated to a constant temperature. Through a glass window in the oven door, an observer records that the thermometer reads 110°F after 1 2 minute and 145° F after 1 minute.
Question 1: How hot is the oven?
I known the correct answer but I need to know how to get that. Thanks in advance!
Radio waves are diffracted by large objects such as buildings, whereas light is not noticeably diffracted by large objects such as buildings. Why is this?
Two identical 30 {rm g} particles each carry 3 {rm mu C} of charge. One is held fixed, and the other is located 1 {rm mm} away and released. Find the speed of the moving charge when it's 1{rm cm} from the fixed charge.
A convex lens with 19.8 is mounted 40.0 to the left of a concave lens. When an object is placed 31.0 to the left of the convex lens, What is the focal length of the concave lens
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.09 x 104 m/s, and the radius of the orbit is 2.16 x 106 meter. Evaluate what the orbital speed of the second satellite
A fully charged capacitor with a voltage of 270 kV is discharged through a resistor. What is the voltage across the capacitor at the end of four time constants?
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
Three light bulbs each with a resistance of 50W, are connected in series to a 100 V power supply, find the current flowing through the third light bulb
rotating fan a rotating fan completes 1200 revolutions every minute. consider a point on the tip of a blade at a radius
A package is dropped from a helicopter moving upward at 15 m/s. If it takes 10 s before the package strikes the ground, How high above the ground was the package
Two narrow slits are illuminated by a laser with a wavelength of 549nm. The interference pattern on a screen located x = 4.50m away , Calculate the distance between the two slits
What is the main optical element of a refracting telescope? A department store sells an "astronomical telescope" with anobjective lens of 30 cm focal length and an eyepiece lens of focallength 5 mm. What is the magnifying power of this telescope?
A snowball rolls off a barn roof that slopes downward at the angle of 40 ^circ. The edge of the roof is 14.0 {rm m} above the ground, and the snowball has a speed of 7.00 {rm m/s} as it rolls off the roof. Ignore air resistance.
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