Since the big bang, but before now, a time existed where matter was not dominant

a. True
b. False
Indicate whether the statement is true or false


True
RATIONALE:

Physics & Space Science

You might also like to view...

A point charge Q = 7.00 × 10-9 C is placed at the origin of an xy-coordinate system. What is the electric field intensity E at a distance of x = 30 cm from this charge? (Use k = 9 × 109 Nm2/C2.)

A) 100 N/C B) 400 N/C C) 500 N/C D) 600 N/C E) 700 N/C

Physics & Space Science

A 1.6-kg block is attached to the end of a 2.0-m string to form a pendulum. The pendulum is released from rest when the string is horizontal. At the lowest point of its swing when it is moving horizontally, the block is hit by a 10-g bullet moving horizontally in the opposite direction. The bullet remains in the block and causes the block to come to rest at the low point of its swing. What was

the magnitude of the bullet's velocity just before hitting the block? a. 1.0 km/s b. 1.6 km/s c. 1.2 km/s d. 1.4 km/s e. 1.8 km/s

Physics & Space Science

The scalar product is commutative

Indicate whether the statement is true or false

Physics & Space Science

A 1500-W heater is connected to a 120-V line. How much heat energy does it produce in 2.0 hours?

A) 1.5 kJ B) 3.0 kJ C) 0.18 MJ D) 11 MJ E) 18 MJ

Physics & Space Science