Answer:
3rd picture straight line going up right
Explanation:
3rd picture
Answer:
C) It reacts explosively with oxygen.
Explanation:
Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor.
What are the Chemical Properties of Hydrogen? They are the characteristics that determine how it will react with other substances or change from one substance to another.
Answer:

Explanation:
The torque applied on an object can be calculated by the following formula:

where,
T = Torque
F = Applied Force
r = radius of the wheel
For car wheel:

For truck wheel:

Dividing both:

for the same force applied on both wheels:

where,
rt = radius of the truck steering wheel = 0.25 m
rc = radius of the car steering wheel = 0.19 m
Therefore,


Answer:

Explanation:
We are given that
d=0.23 mm=

Screen is placed from the slits at distance ,L=4.75 m
The bright interference fringes on the screen are separated by 1.56 cm.

1 m=100 cm
We have to find the wavelength of laser light.
We know that

Substitute the values


