1. Describe what is happening at point A when these 3 vectors act on point A. 2. Describe what happen to the resultant vector at
Point B when the 5N vector goes from 0 degree to 180 degrees. 3. A lawnmower is pushed with a constant force F. as 0 between vector F and the horizontal plane decreases describe what is happening to the Fx and Fy vector components of vector F. 4.Calculate the magnitude of the component of the force parallel to the ground.
1 answer:
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Answer:
T=5797.8 K
Explanation:
Given that
Power P = 3.9 x 10²⁶ W
Radius ,r= 6.96 x 10⁸ m
We know that ,From Plank's law
P = σ A T⁴
σ = 5.67 x 10 ⁻⁸
A= Area ,T= Temperature ( in Kelvin)
Now by putting the values
T=5797.8 K
The temperature of surface will be 5797.8 K
Answer:
Explanation:
It is given that,
Mass of lump, m₁ = 0.05 kg
Initial speed of lump, u₁ = 12 m/s
Mass of the cart, m₂ = 0.15 kg
Initial speed of the cart, u₂ = 0
The lump of clay sticks to the cart as it is a case of inelastic collision. Let v is the speed of the cart and the clay after the collision. As the momentum is conserved in inelastic collision. So,
v = 3 m/s
So, the speed of the cart and the clay after the collision is 3 m/s. Hence, this is the required solution.