Answer:
Yes
Explanation:
The cart will definitely behave differently because more weight is added to it.
In order to successfully push a cart, the applied force must exceed the force of the weight of the cart along with its constituents and the frictional force between the tyres and the floor.
<em>When more weights are added (the 2 packs of water bottles), it means that more force would be needed to overcome the opposing forces to the movement of the cart in order to successfully push the cart again.</em>
Answer:
specifically 30º west of the north
Explanation:
This exercise can be solved using the composition of vectors, let's call the speed of the river that goes east (v₁ = 8 mi / h) to the speed of the boat (v₂ = 16 mi / h) and the desired speed from south to north (v₃ =?). Look at the attachment to be clear about the vectors
Let's use the Pythagorean triangle
v₃² = v₁² + v₂²
Let's calculate v₂
v₂² = v₃² - v₁²
v₂ = √ (16² - 8²)
v₂ = 13.86 mi / h
To find the angle we use trigonometry
sin θ = v1 / v3
θ = sin⁻¹ (v1 / v3)
θ = sin⁻¹ (8/16)
θ = 30º
The boat must be pointed at 30º with respect to the south-north direction, specifically 30º west of the north
Answer:
#Horizontal component of 100m/s=100 sin60=50×(root 3)=50×1.732=86.6m/s
#Vertical component of 100m/s=100 cos 60°=100/2=50m/s
(¡) Maximum height it can reach=(v^2+u^2) /2a=0+(50^2) / 2×(-10)=125m
(¡¡) The time takes to reach the maximum height =2S/(u-v)=125×2/(50-0)=5s
(¡¡¡) Horizontal range=ut=86.6×5=433m
Explanation:
# At the highest point (vertical) velocity is zero
#Velocity (horizontal) remains constant
(¡)By v^2=u^2+2as equation
(¡¡)By S=1/2(u+v)t equation
(¡¡¡) S=ut therefore horizontal range=ut
Capacitors can be used in charge pump circuits as the energy storage element in the generation of higher voltages than the input voltage. capacitors are connected in parallel with dc power circuits of most electronic devices to smooth current fluctuations for signal or control circuits.
<span>Imaging radar has given archaeologists "x-ray vision" and helped them locate sites such as the Lost City of Ubar, which was hidden in the sands of the Sahara Desert, and Angkor, and ancient Cambodian kingdom hidden for centuries under the dense tropical forests which covered it.</span>
