A magnitude of 600 pounds of force is required to hold a boat and its trailer in place on a ramp whose incline is 9^circ to the horizontal. What is the combined weight of the boat and its trailer? Find the combined weight of the boat and its trailer square lb (Round to the nearest pound as needed.)

Which planet is small with a rocky surface and an atmosphere? Jupiter Neptune Uranus Venus

Which of the following statements is/are CORRECT? 1. Electron spin is associated with the magnetic field of an electron. 2. An electron has only two spin states labeled by m_(s)=1/2 and -1/2 3. Up and down arrows are often used to represent electron spin states. 1. 1 only 2. 2 only 3. 3 only 4. 1 and 3 5. 1,2, and 3

Part D Relative to its initial.healthy state, by what factor does the velocity of blood increase as the blood passes through this blockage? Express your answer numerically. includegraphics[width=0.1width](subunit.png) & includegraphics[width=0.1width](unit.png) & includegraphics[width=0.1width](unit.png) & includegraphics[width=0.1width](unit.png) & includegraphics[width=0.1width](unit.png) & includegraphics[width=0.1width](unit.png) & includegraphics[width=0.1width](unit.png)

Transparency of the atmosphere is lowest for radiation of visible light. infrared light. ultraviolet light.

Which of the following statements is NOT true about a nuclear fission reaction? A nuclear power plant uses nuclear fission to ultimately generate energy. Nuclear fission reactions are typically induced by proton bombardment. The energy in the sun is a result of nuclear fission reactions. Nuclear fission reactions occur spontaneously.

? Question Type the correct answer in the box. Use numerals instead of words. It will take the asteroid square years, in Earth years.to complete one orbit of the Sun.

After radioactive decay, the mass number of the daughter nuclide increases by one (1). What type of radioactive decay occurred? electron capture gamma decay beta decay alpha decay positron emission

Question: The distance needed for steering around an object is shorter than the distance needed to brake for the object. Options: True False

3. About how long ago was the Voyager 1 space shuttle launched? thirty years twenty years five years ten years

Hot Questions

1. Choose the correct statement or equation. When a wave in a string reflects from an open or flexible end, the reflected wave has the same wavelength and amplitude as the original wave. When a wave in a string reflects from a fixed end, the reflected wave has the same wavelength and amplitude as the original wave.

In what ways are meteorites different from meteors? What is the probable origin of each? Meteors typically come from comets that have passed through the solar system; their solid material is freed when the ice is vaporized by the heat of the Sun. Meteorites miss the atmosphere whereas meteors hit the outer layers only. Most meteors come from Mars and carry important information about the past of the red planet. Meteorites are large enough to withstand the violent passage through Earth's atmosphere, whereas meteors burn up from the heat of friction. Most meteorites, on the other hand, are from asteroids or from debris kicked up on the Moon or Mars during an impact.

If a rock is dropped from a height of 87 ft, its poistion t seconds after it is dropped until it hits the ground is given by the function $s(t)=-16t^{2}+87$ Round values below to 3 decimal places. How long does it take the rock to hit the ground? $\square $ seconds Find the average velocity of the rock from when it is released until when it hits the ground. $\square $ feet per second What time after the rock is thrown will its instantaneous velocity be equal to its average velocity? (Apply the Mean Value Theorem) $\square $ seconds after it is thrown

The bending or change in angle of light as it passes through a lens is called $\square $

Photons of a certain infrared light have an energy of $1.91\times 10^{-19}J$ (a) What is the frequency of this IR light? $\square $ Hz (b) Use $\lambda =c/f$ to calculate its wavelength in nanometers. $\square $ nm

The outer planets of the solar system were formed by asteroid agglomeration comet collisions gravitational forces temperature increases

Multiple Choice 2 points Step 3 of Part 2: The flashlight is shining to an azimuth of 225 degrees. What is the azimuth of the shadow? 0 degrees 45 degrees 90 degrees 180 degrees

1) The height of the Washington Monument is measured to be 170 m on a day when the temperature is $35.0^{\circ }C$ What will its height be on a day when the temperature falls to $-10.0^{\circ }C$ Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble's.

A point is subjected to 5 ksi biaxial tension. The diameter of the corresponding Mohr's circle is most nearly: O 5 ksi 7.07 ksi 10 ksi

A ball is thrown vertically upward. After r seconds, it's height him feet) is given by the function $h(t)=40t-16t^{2}$ After how long will It reach its maximum height? Do not round your answer. Time: $\square $ seconds