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What is critical acceleration?
Critical acceleration is the minimum acceleration required to cause an object to start moving or sliding on a surface. It is the point at which the frictional force between the object and the surface is overcome by the applied force.
If a person does 50j of work in moving a 30kg box over a 10m distance on a horizontal surface what is the minimum force required?
The minimum force required to move the box can be calculated using the work done, distance, and weight of the box. Here, Work done = force * distance moved. So, force = work done / distance moved = 50J / 10m = 5N. Therefore, the minimum force required to move the box is 5 Newtons.
What is the minimum speed for a projectile to go in orbit?
The minimum speed for a projectile to achieve orbit around the Earth, known as orbital velocity, is approximately 17,500 miles per hour (28,000 kilometers per hour) when launched from the Earth's surface. This speed allows the projectile to balance the pull of gravity with the force of its forward motion, resulting in a stable orbit.
What is the stopping potential equation used to calculate the minimum voltage required to stop photoelectrons emitted from a metal surface?
The stopping potential equation is V hf - W, where V is the stopping potential, h is the Planck constant, f is the frequency of the incident light, and W is the work function of the metal surface. This equation is used to calculate the minimum voltage needed to stop photoelectrons emitted from a metal surface.
How does threshold frequency relate to work function?
Threshold frequency is the minimum frequency of light required to eject an electron from a metal surface, while work function is the minimum energy required to remove an electron from the metal. The threshold frequency is directly related to the work function by the equation E = hf, where E is the energy required, h is Planck's constant, and f is the frequency of the incident light.
What was the name of the first spacecraft to visit Mars In what year did this occur?
The first spacecraft to visit Mars was Mariner 4. It was launched in 1964 and conducted a flyby of Mars in 1965, sending back the first close-up images of the planet's surface.
What spacecraft took these new pictures of mars?
The spacecraft that took the new pictures of Mars is the Perseverance rover, a NASA mission launched in July 2020. It is equipped with advanced cameras and instruments to capture high-resolution images of the Martian surface.
What are two possible paths of a spacecraft that just launched from earth but that is not traveling orbital velocity?
The spacecraft will follow an elliptical orbit with one focus at the Earth's centre, which approximates a parabola, before it hits the surface again.
What was the first spacecraft on the moon called?
The United States' Apollo 11 was the first manned mission to land on the Moon, on 20 July 1969.
What year was the first space rocket launched to the moon?
The first rocket to get near the moon was the Soviet Luna 1 spacecraft in 1959. Later that year, the Soviet Luna 2 spacecraft was the first manmade object to reach the surface of the moon.
Why do you always see the spacecraft names cassini and huygens together?
You don't ALWAYS see them together. The spacecraft, as launched, is generally referred to by the combined names "Cassini-Huygens". The Cassini spacecraft is the parent craft which is orbiting Saturn. The Huygens probe was a lander that descended to the surface of Saturn's moon Titan.
What is the minimum temperature required for painting a surface effectively?
The minimum temperature required for painting a surface effectively is typically around 50 degrees Fahrenheit (10 degrees Celsius). Painting below this temperature can affect the quality and drying time of the paint.
What was the first spacecraft sent to explore Mars and in what year?
the first spacecraft to explore mars is the mariner 4
The messenger launched by nasa is to study?
The messenger launched by NASA is a spacecraft that was sent to study the planet Mercury. It provided valuable data about Mercury's surface, composition, and magnetic field, helping scientists better understand this innermost planet of our solar system.
What spacecraft gave us the first close-up photographs of mercurys surface?
the spacecraft is the MESSENGER i the spacecraft is the MESSENGER i
What was the name of the mission that first landed on the moon?
"Luna 2" was the first USSR spacecraft on the surface of the moon, in 1960. "Ranger 4" was the first US spacecraft on the surface of the moon, in 1963. Both Luna-2 and Ranger-4 were crash landings. "Apollo 11", launched by the US, was the first mission to land men on the moon and return them safely to earth, in 1969.
How do astronauts travel to the moon?
The large multi-stage rocket called the Saturn V launched men to the Moon from 1968 to 1972. The new vehicle (2017) will be called the Ares 1 booster. (The Space Shuttle is not a lunar-capable vehicle.)
