b. the amount of friction from the bowling lane acting on the bowling ball
c. the acceleration due to gravity acting on the bowling ball
d. the force the bowler applied to the bowling ball
Answer:
8138.16
Explanation:
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Explanation:
To find the takeoff speed of the long jumper, we can utilize the physics principles of projectile motion. Given that the long jumper leaves the ground at a 30-degree angle and travels a distance of 8.50 m, we need to find the initial velocity (takeoff speed) of the jumper.
In projectile motion, we can break down the motion into horizontal and vertical components. The horizontal component remains constant, while the vertical component is affected by gravity.
To solve for the takeoff speed, we can focus on the vertical component of motion. The equation that relates the vertical displacement, initial velocity, launch angle, and acceleration due to gravity is as follows:
Δy = v₀y t + (1/2) g * t²,
where:
- Δy is the vertical displacement (8.50 m),
- v₀y is the vertical component of initial velocity (takeoff speed),
- t is the total time of flight, and
- g is the acceleration due to gravity (approximately 9.8 m/s²).
Since the vertical displacement at the peak of the jump is zero (the jumper is at the highest point), we can rewrite the equation as:
0 = v₀y * t + (1/2) g t².
However, we can derive a relation between the time of flight t and the initial velocity v₀y by using the launch angle θ. The time of flight is given by:
t = (2 v₀y sin(θ)) / g.
Substituting this expression for t in the above equation, we have:
0 = v₀y [(2 v₀y sin(θ)) / g] + (1/2) g [(2 v₀y sin(θ)) / g]².
Now, we can solve for v₀y:
0 = v₀y² (2 sin(θ) + sin²(θ)) / g.
Rearranging and isolating v₀y, we get:
v₀y = √[(g Δy) / (2 * sin(θ) + sin²(θ))].
With the given values:
Δy = 8.50 m,
θ = 30 degrees,
g ≈ 9.8 m/s²,
we can substitute these values into the formula:
v₀y = √[(9
What is the definition of law of conservation of energy
Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside. This is particularly confusing in the case of non-conservative forces, where energy is converted from mechanical energy into thermal energy, but the overall energy does remain the same. The only way to use energy is to transform energy from one form to another.
Explanation:
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Answer:
means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
Explanation: this is a shorter answer.
c. Dorothea Lange
b. Richard Avedon
d. Pablo Picasso
He experimented with photography and learned how to create “cameraless” photos, also known as photograms or photograms, which he termed radiographs. He created them by physically laying things on light-sensitive paper, which he then developed in light. Thus, option A is correct.
By placing items like the thumbtacks, coil of wire, and other circular formations utilized in this image directly on a piece of photosensitized paper and exposing it to light, Man Ray created his “rayographs” without using a camera or photography .
Although he continued to have an interest in painting after starting his artistic career as a painter, photography was the medium that brought him both commercial and critical success.
Therefore, One of the most important modernist photographers, filmmakers, and object makers was Man Ray.
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