Official street signs have a normed height of 84mm. What's the farthest distance to read such a sign? Is it the same whether you see the street sign in bright sunlight or at night?
Q: Most photocopiers can reduce the size an image by a maximum of 64% of the original dimensions. How…
A: With each setting, the size of the image is reduced by 64%, while the final reduction is 10%. So,…
Q: calculate the slope and uncertainty in the slope.
A: By using simple formula of slope,1st we calculate slope.then find uncertainty of slope.
Q: Claire knows that the Calgary Tower is 191 m high. At a certain point, the angle between the ground…
A:
Q: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: Hubble’s time: It is defined as follows, t=1H ---------------- (1) Here H is the Hubble’s constant…
Q: 7. Northern California is home to the largest geothermal power plant in the world. Its heat source…
A: The temperature of the water in Kelvin is, TH=195+273=468 K The temperature of the outside air in…
Q: d. Diameter of the Sun A I h Standing on the beach at sunset, you extend the tip of your finger at…
A: As given, Finger width, l=0.5 inches=0.5×0.0254 m=0.0127 m Arm length, x=28.0 inches=0.7112 m Object…
Q: I got 47.2 degrees as my answer. (47 rounded). Is that correct?
A: (a)Torque due to first force
Q: On a clear day a tiny fish hides under water (n water = 1.39 )from an osprey under a circular leaf…
A: In given question, first we find the angle at which osprey is watching the fish. For that we are…
Q: When is the magnitude of the vector product of two vectors the largest? When the two vectors are…
A: Solution:- Correct options is When the two vector s are perpendicular
Q: The scale on a map is 1cm=10km. If two cities are 4.8cm apart on the map what is the actual distance…
A: Given Scale taken on map 1cm = 10 km Two cities are 4.8 cm apart on the map . Therefore ,…
Q: A hot air balloons gondola is suspended below a cloth envelope containing 2.775 x 10^6 liters of hot…
A:
Q: 3/2 v² e-Mv²/2R derive the expression for (a) Vavg, (b) (v²) avg, (c) M Starting with (v) = 4T 2πRT…
A:
Q: 38N 86N 6cm P. Q In the figure length of the right part of the dotted vertical line equals O 3.52 cm…
A:
Q: When a man stands near the edge of an empty drainage ditch of depth 2.80 m, he can barely see the…
A: depth (h) = 2.80 m h = 1.76 m θ = 29.7o
Q: A park ranger wanted to measure the height of a small tree. The ranger stood 10.50 meters from the…
A: When a body makes angle with respect to the horizontal direction, the height of that object is the…
Q: A 50-kg swimmer dives off a cliff with a running horizontal jump (moving at v,x0). 9 m below is a…
A:
Q: A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of m…
A: The mass of the bacterium is 0.100x10-18kg, velocity is 1.00x10-6m, and the percentage of…
Q: A person is standing at the edge of the water and looking out at the ocean (see figure). The height…
A:
Q: An aerial photograph from a U-2 spy plane is taken of a building suspected of housing nuclear…
A: Introduction Aerial photograph :- An aerial photograph is a photograph taken from an elevated…
Q: The answer is 0.0 cm and 7.5 cm. Any idea as why that could be?
A: When two sinusoidal waves of the same frequency and wavelength overlap, they undergo superposition,…
Q: In the Snellen visual acuity chart, the letters in the 20/40 line subtend an angle of 3 milliradians…
A:
Q: For example, for the equation = TV, if G = y and V = x, what represents m? If we solve for G, then G…
A:
Q: Complete the table below: Vector 2 Vector 3 4 lbf Vector 1 Vector 4 Vector 5 Vector 6 -50 N 15m 2cm…
A:
Q: A = 2î-3; Components, magaitude and angle of each? blWhat is3 A twhat is 2 A - 30
A: Each vector in 2D has perpendicular components in the X- and Y-axes. The magnitudes and the signs of…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A rectangular airstrip measures 32.30 m by 210 m, with thewidth measured more accurately than the length. Find thearea, taking into account significant figures.Can you help with the second one. I have done the math several times and I always end up with 7.44. It's close to 7.44 (within ten per the guidance of the question.) It is not 82 degrees.To estimate the size of the moon, a person holds a round pencil of diameter 0.70 cm. When the pencil is 77 cm in front of his eye, the moon is completely covered by the pencil. (a) What is the angle subtended by the moon? (b) what is the diameter of the moon if it is 3.8x 108 m above the Earth surface? (a) 0.52 x x 10-3 rad; (b) [ 3.54 x 106 m.
- In aviation, it is helpful for pilots to know the cloud ceiling, which is the distance between the ground and lowest cloud. The simplest way to measure this is by using a spotlight to shine a beam of light up at the clouds and measuring the angle between the ground and where the beam hits the clouds. If the spotlight on the ground is 0.75 km from the hangar door as shown in the image below, what is the cloud ceiling? 20° 0.75 kmThe speed of light to five significant figures is 2.9979 * 108m>s.What is the speed of light to three significant figures?ER, d. = ER, d. Where: ER1 = 30mR/hr || ER2 5mR/hr d1 3 inches d2 0. inches ||