Answers
Answer:
Yes.
Explanation:
This is because "negative velocity" just means it is in the negative in relation to the point of 0. Negative velocity doesn't equal a decrease in velocity. For example lets say you were parked next to a cone (this cone represents zero) if you accelerate forwards then that would be positive acceleration. If you were to accelerate backwards, this would be in the negative direction, aka negative velocity.
SUMMARY:
A negative velocity means that the object which has the negative velocity is moving in the opposite direction of an object moving at a positive velocity. This is a question of frame of reference. The possibility for the velocity is what makes it different to the speed. Speed is only positive.
Final answer:
In physics, a negative velocity can be faster than a positive one when considering speed alone, but not when considering motion direction. For instance, if a car is moving faster but in an opposite direction, it will have a higher speed but a negative velocity.
Explanation:
In physics, the term velocity represents both the speed of an object and its direction of motion. A negative velocity simply means that the object is moving in the opposite direction of the reference point. So, a car moving with a negative velocity can 'move faster' than a car moving with positive velocity if you're considering its speed alone.
Let's assume you have Car A moving at a speed of 40 km/hr in the eastern direction (positive velocity) and Car B moving at a speed of 60 km/hr in the western direction (negative velocity). Even though Car B is described as having a negative velocity, it is moving faster than Car A in terms of speed.
However, remember that in physics, direction matters when considering velocity. So, if you compare their velocities without ignoring the direction, Car A is moving faster to the east than Car B is to the west, even if Car B has higher speed.
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Related Questions
A uniform piece of wire, 20 cm long, is bent in a right angle in the center to give it an L-shape. How far from the bend is the center of mass of the bent wire?
A parallel-plate vacuum capacitor has 7.72 J of energy stored in it. The separation between the plates is 3.30 mm. If the separation is decreased to 1.45 mm, For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Stored energy. Part A what is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates was changed
The focal length of a concave mirror is 17.5 cm. An object is located 38.5 cm in front of this mirror. How far in front of the mirror is the image located?
The graph to the right shows the change in Canada‘s harvest of Atlantic cod from 1950-2004 what year shows the clearest evidence of a collapse of fishing stocks?A.1965B.1985C.1995D.2005
Answers
Answer:
Δ KE = - 8.75 x 10⁻⁴ J
Explanation:
given,
mass of applesauce = 7 g = 0.007 Kg
initial velocity, u = 0.5 m/s
final velocity, v = 0 m/s
Decrease in kinetic energy = ?
initial kinetic energy
KE₁ = 8.75 x 10⁻⁴ J
final kinetic energy
KE₂ =0 J
Decrease in kinetic energy
Δ KE = KE₂ - KE₁
Δ KE = 0 - 8.75 x 10⁻⁴
Δ KE = - 8.75 x 10⁻⁴ J
decrease in kinetic energy of the applesauce is equal to 8.75 x 10⁻⁴ J
Final answer:
The decrease in kinetic energy of the applesauce, when it hits the wall and stops, is the initial kinetic energy of it. Using the formula of kinetic energy, the decrease is calculated to be 0.000875 Joules.
Explanation:
This question relates to the concept of kinetic energy in physics. Kinetic energy is calculated by the formula 0.5 * mass (kg) * velocity (m/s)^2. So the initial kinetic energy of the applesauce right after being thrown was 0.5 * 0.007 kg * (0.5 m/s)^2 = 0.000875 Joules.
When the applesauce hits the wall and stops, its velocity drops to 0. Thus, its kinetic energy also goes to 0 (because kinetic energy is proportional to the square of velocity).
Therefore, the decrease in kinetic energy is the same as the initial kinetic energy of the applesauce, which is 0.000875 Joules.
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3. Explain how the original mass of dry ice compares with the mass of carbon dioxide gas.
Answers
1. Since the solid carbon dioxide never become liquid on melting under normal pressure. Thus through the process of sublimation, the solid carbon dioxide changes to gas
2. The molecules in dry ice, are in caged like structure just as the normal water ice but as it melts, the CO2 molecules having high affinity for gaseous state converts into a gas.
3. Dry ice is heavier than its gaseous form. Density of dry ice = 97.6 lb/cu.ft.
Density of carbon dioxide gas = 0.1144 lb/cu.ft.
With higher density and a fixed volume, mass of dry ice is higher than the CO2 gas
products. Which statement explains this difference in mass?
A. Some of the mass was transformed into neutrons during the
process.
O B. Mass was destroyed and disappeared during the process.
C. Some of the mass was transformed into gases during the
process.
D. Mass was transformed into energy during the process.
Answers
Answer:
D. Mass was transformed into energy during the process.
Answer:
C
Explanation:
Some of the mass
Swinging a tennis racket against a ball is an example of a third class lever.
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9
Please select the best answer from the choices provided.
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Answers
Final answer:
Swinging a tennis racket against a ball as a third class lever in physics.
Explanation:
Swinging a Tennis Racket as a Third Class Lever
A tennis racket swinging against a ball is indeed an example of a third class lever in physics. In a third class lever, the effort is situated between the fulcrum and the load. In this case, the effort is provided by the player's hand gripping the racket handle, the fulcrum is the wrist joint, and the load is the ball being struck by the racket.
When a player swings the racket, the force applied by the player's hand exerts an effort on the handle of the racket. This causes the racket to rotate about the wrist joint acting as the fulcrum. The ball serves as the load, receiving the force and accelerating in the opposite direction.
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Answers
Answer:
465 feet because 93*5 = 465, btw that was 1993 not 1933
Explanation: